Weather StoryAlmanac, microseasons, and the day's weather story.

Bay Harbor Islands, Florida Weather

Midyear heat — the wet season grip. Day 14 of summer. Read this microseason across nine climate regions →

Bay Harbor Islands weather forecast — hour by hour, 7-day outlook, NOAA radar

Bay Harbor Islands, FL
Saturday, July 4 at 4:14 PM
89
°
Overcast
Feels like
103°
Humidity
70%
Wind
3 mph
Sunrise
2:33 AM
Sunset
4:16 PM
Bay Harbor Islands, FL
Hour by hour · 24h
24-Hour ForecastBay Harbor Islands, FL: 24-hour forecast. Temperatures range from 78 to 89 degrees Fahrenheit with a 22% chance of precipitation at 2 PM.
L 78°H 89°
Bay Harbor Islands, FL
7-day forecast
  1. Today
    Jul 4
    Overcast
    18%
    —
    90°77°—
  2. Sunday
    Jul 5
    Heavy Showers
    22%
    1.4″
    89°77°-1°
  3. Monday
    Jul 6
    Thunderstorm
    65%
    0.11″
    89°76°0°
  4. Tuesday
    Jul 7
    Overcast
    29%
    —
    89°82°0°
  5. Wednesday
    Jul 8
    Light Drizzle
    —
    —
    90°85°+1°
  6. Thursday
    Jul 9
    Light Drizzle
    —
    —
    89°85°-1°
  7. Friday
    Jul 10
    Thunderstorm
    17%
    —
    90°84°+1°
Bay Harbor Islands, FL
Next 24 hours · Warm now
HOT 90°74°83°92°12p6p12a6anow 89°high 89°low 78°PRECIP %
Bay Harbor Islands, FL
Anemometer · 24h winds · from true
NESW
From · True
SSW
200° · veering 75°
Direction
SSW
200°
Sustained
3
mph
Gust
3
mph
Peak 24h
15
avg 5
Beaufort · 1 · LIGHT AIR
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 5 · pk 15 @ 3:00p
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 242SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Bay Harbor Islands, FL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1017.2
-1.1 mb in 3h · falling · 30.04 inHg
Now
1017.2
mb
3h
-1.1
mb
12h
+0.5
mb
24h
+0.6
mb
Regime · FAIR
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1016–1018
1010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY-21h-18h-15h-12h-9h-6h-3h-24hNOW1018.41016.41017.2
−24h−18h−12h−6hnow
Fair air starting to ease — a front may be approaching.
Bay Harbor Islands, FL
Air quality
53
AQI
Moderate
→+2 in 6h

AQI 53 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 13.6 µg/m³, PM10 at 25.8 µg/m³ — typical background levels with no transport signature.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERModerate
13.6μg/m³
PM 10Good
26μg/m³
NO₂Good
1μg/m³
OzoneModerate
74μg/m³
UV IndexModerate
4.7

What's driving it

Ozone × UV × Sky

Ozone at AQI 35 — peak already passed at 1 PM under clear skies. Levels should ease through evening.

Present
AQI 35
UV peak
4.2 at earlier today
Sky at peak
clear
Projected peak
AQI 35

PM × Wind × Precip

PM2.5 at 13.6 µg/m³, PM10 at 25.8 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.53
Wind
calm
Recent rain
0h in last 6h
Pattern
background

Trends

Seven days of AQI and PM2.5.

Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).

7-DAY AQI TREND50100SATSUNMONTUEWEDTHUFRISAT7-DAY PM2.5 TREND · μg/m³380
Bay Harbor Islands, FL
Sky cover · visibility · 24h
Cloud cover
84%
MOSTLY CLOUDY
100%0%−24h−18h−12h−6hnow
Visibility
45.1mi
UNLIMITED
50 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
20:14 UTC · Bay Harbor Islands, FL · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
20:14 UTC · Bay Harbor Islands, FL · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Bay Harbor Islands, FL
Satellite · infrared · animated
Bay Harbor Islands, FL
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Bay Harbor Islands, FL
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
6:08 AM
Sunrise
2:33 AM
Daylight
13h 43m
Sunset
4:16 PM
Civil dusk
8:43 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Bay Harbor Islands, FL
The moon
Waning Gibbous
79% illuminated
Moonrise
10:57 PM
Moonset
10:38 AM
In sign
♓︎ Pisces
Bay Harbor Islands, FL
Microseason
Jul 1–5

Midyear heat — the wet season grip

fish
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Bay Harbor Islands at a glance

  • Today vs. normal: 3°F above the seasonal normal for this latitude
  • Last frost: January 21 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

16-Day Forecast — Bay Harbor Islands

  1. Sat91°77°18%
  2. Sun89°77°22%
  3. Mon89°76°65%
  4. Tue89°82°29%
  5. Wed90°85°9%
  6. Thu89°85°6%
  7. Fri90°84°17%
  8. Sat89°82°19%
  9. Sun89°81°18%
  10. Mon89°81°23%
  11. Tue89°84°26%
  12. Wed89°86°21%
  13. Thu89°85°26%
  14. Fri88°84°35%
  15. Sat89°85°46%
  16. Sun89°85°56%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

SPC Convective Outlook

Storm Prediction Center — Bay Harbor Islands

SPC includes Bay Harbor Islands in the general thunderstorm area today — no severe risk, but storms are possible.

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3TSTMGeneral Thunderstorms

Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

January 1–5: The year turns in trade winds.January 6–10: Reefs reflect clear winter light.January 11–15: Mangrove buds swell with green.January 16–20: Hibiscus opens in January sun.January 21–25: Early-blooming aster brings gold.January 26–31: Last cold breath, green rising.February 1–5: Plumeria and ceiba crown the canopy.February 6–10: Coral spawn timing aligns with moon.February 11–15: Morning dew lingers on new leaves.February 16–20: Trade-wind rhythm softens slightly.February 21–25: Humidity breaks the dry season spell.February 26–28: Mist rises where rain falls inland.March 1–5: Green thickens in every direction.March 6–10: Hidden creatures awaken in dampness.March 11–15: Fruiting cycles deepen as rains persist.March 16–20: Wings emerge from green.March 21–25: Light holds the horizon.March 26–31: Coral blooms begin.April 1–5: Thunder rolls across the sea.April 6–10: Migrants pour southward.April 11–15: Green deepens in all things.April 16–20: Rain paints the sky.April 21–25: Green shoots rise from the shore.April 26–30: Heat breaks the last restraint.May 1–5: Lei Day—flowers crown the islands.May 6–10: Rain falls on greening grain.May 11–15: Green life breaks upward.May 16–20: Flowers spill across the islands.May 21–25: Summer arrives in thunder.May 26–31: Frogs sing the summer in.June 1–5: First trades stir the ceiba canopy.June 6–10: Afternoon showers claim the ritual.June 11–15: Easterly waves thread the Atlantic.June 16–20: Reef polyps synchronize in moonlight.June 21–25: The sun reaches its zenith turn.June 26–30: Lightning bugs dance above the flooded lowlands.July 1–5: Midyear heat — the wet season grip.July 6–10: Warm breeze across the mangrove maze.July 11–15: Storm surge begins its rhythm.July 16–20: Juvenile raptors test the thermals.July 21–25: The earth releases its breath — humidity peaks.July 26–31: Fruits swell in the tropical canopy.August 1–5: August opens — storms become routine.August 6–10: Autumn whispers in the trade wind shift.August 11–15: Cool winds find their path again.August 16–20: Cicadas hum through the heat.August 21–25: Trade winds gather strength.August 26–31: Hurricane season intensifies.September 1–5: Peak storm season dawns.September 6–10: Wet-season rains peak.September 11–15: Mid-season storm lull.September 16–20: Equinox approaches.September 21–25: Storm intensity ebbs slightly.September 26–30: Late-season storms persist.October 1–5: Easterly waves train across the basin.October 6–10: Hurricane season's second peak.October 11–15: Seasonal wind shift emerges.October 16–20: Atlantic storms retreat.October 21–25: Trade winds solidify.October 26–31: Dry season's arrival.November 1–5: Last storms clear the horizon.November 6–10: Dry season takes hold.November 11–15: Migratory arrivals from the north.November 16–20: The emerald deepens.November 21–25: Dust veil settles.November 26–30: Harvest calm descends.December 1–5: Deep dry season opens.December 6–10: Winter trades blow strong.December 11–15: Solstice approaches in green silence.December 16–20: The sun turns again.December 21–25: Solstice—renewal in stillness.December 26–31: Year's end in tropical stillness.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · July 1–5

Midyear heat — the wet season grip

July arrives at full tropical intensity. Afternoon showers violent and brief. Trade winds weaken. Air feels solid with moisture and warmth.

Day 185 of 365 · Wedge 37 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
Februarylettuce, peas, spinach, radishes—
Marchlettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash—
Apriltomatoes, peppers, beans, squash—
Maytomatoes, peppers, beans, squashlettuce, peas, radishes
June—lettuce, peas, radishes
July—tomatoes, beans, summer squash
August—tomatoes, beans, summer squash
September—tomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
Novemberfall brassicas, garlic (overwinter), carrots—
December——

A year in weather

In Bay Harbor Islands, August runs warmest near 82°F and January coldest around 69°F, while September is the wettest month (6.8 inches) and February the driest (1.9 inches).

MonthMean tempPrecipRainy days
January69°2.0″20
February69°1.9″16
March71°2.0″16
April75°2.3″15
May78°4.3″21
June81°6.6″26
July82°5.5″28
August82°6.2″29
September81°6.8″28
October79°4.8″26
November74°2.4″19
December70°1.9″20

Regional context

Bay Harbor Islands swings from 69°F in January to 82°F in July (13°F) per NOAA NCEI 1991-2020 normals; precipitation in Bay Harbor Islands runs about 46.5 inches on roughly 265 measurable days.

Precipitation in Bay Harbor Islands runs summer-dominant: September averages 6.8 inches across 28.3 days of warm-season storms, while February drops to 1.9 inches over 16.4 rainy days of drier cool air. It is a warm-season-wet pattern Bay Harbor Islands shares with places like Bal Harbour, FL, Indian Creek, FL and Surfside, FL.

Hard freezes are rare in Bay Harbor Islands: the coldest month averages 69°F, so Bay Harbor Islands's growing window runs most of the year. August is the hottest stretch near 82°F, pushing cool-season crops to the milder shoulder months. Within Bay Harbor Islands, low or inland lots lose 3-5°F overnight versus Bay Harbor Islands's coastal ground.

Similar climates: Bal Harbour, FL, Indian Creek, FL, Surfside, FL, North Miami, FL, North Bay Village, FL.

Frequently asked

When does it freeze in Bay Harbor Islands?
Bay Harbor Islands's last spring frost lands near mid-February, and in Bay Harbor Islands the first fall frost follows around mid-December.
What is the rainy season in Bay Harbor Islands?
Rainfall in Bay Harbor Islands peaks in September near 6.8 inches, out of about 47 inches annually.
What is the warmest month in Bay Harbor Islands?
The warmest stretch in Bay Harbor Islands comes in August, around 82°F on average.
What is the coldest month in Bay Harbor Islands?
On average January is the chilliest month in Bay Harbor Islands, about 69°F.
When can I start a vegetable garden in Bay Harbor Islands?
Bay Harbor Islands's last frost (mid-February) cues hardy greens; in Bay Harbor Islands, hold heat-lovers two weeks past.
How many rainy days does Bay Harbor Islands get?
Expect roughly 265 wet days a year in Bay Harbor Islands.
What hardiness zone is Bay Harbor Islands?
Bay Harbor Islands sits in the USDA zone set by January lows near 69°F; the USDA ZIP tool gives the band.
What is the 10-day forecast for Bay Harbor Islands?
Bay Harbor Islands's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
Will it rain this week in Bay Harbor Islands?
See this week's day-by-day rain chances for Bay Harbor Islands in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Bay Harbor Islands?
Current conditions for Bay Harbor Islands and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Bay Harbor Islands forecast updated?
The Bay Harbor Islands forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Bay Harbor Islands?
Today's sunrise and sunset times for Bay Harbor Islands are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
How accurate is the weather forecast for Bay Harbor Islands?
The next few days in Bay Harbor Islands's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Bay Harbor Islands's humid subtropical climate in Florida pairs 69°F Januarys with 82°F Julys, 13°F apart across the seasons.

In a typical year Bay Harbor Islands records about 47 inches of precipitation on around 265 days.

The 13°F gap between Bay Harbor Islands's summer and winter, at 25.9°N, shapes Bay Harbor Islands's frost calendar.

All cities in Florida →

North Miami, FL weather →

ZIP codes in Bay Harbor Islands

  • 33154

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.