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

Weather in Ko Olina, Hawaii

Flowers spill across the islands. Day 59 of spring. Read this microseason across nine climate regions →

Ko Olina, HI
Sunday, May 17 at 4:04 AM
77
°
Light Drizzle
Feels like
81°
Humidity
76%
Wind
10 mph
Sunrise
5:53 AM
Sunset
7:03 PM
Ko Olina, HI
Hour by hour · 24h
78°
22%
6p
76°
18%
7p
75°
18%
8p
75°
26%
9p
74°
39%
10p
74°
49%
11p
74°
55%
12a
75°
59%
1a
73°
63%
2a
70°
68%
3a
70°
72%
4a
70°
73%
5a
70°
68%
6a
73°
61%
7a
77°
57%
8a
78°
61%
9a
74°
68%
10a
79°
71%
11a
80°
62%
12p
80°
49%
1p
77°
45%
2p
73°
60%
3p
74°
83%
4p
73°
100%
5p
L 70°H 80°
Ko Olina, HI
7-day forecast
  1. Today
    May 16
    Drizzle
    17%
    84°73°
  2. Sunday
    May 17
    Drizzle
    10%
    86°71°
  3. Monday
    May 18
    Light Drizzle
    10%
    83°73°
  4. Tuesday
    May 19
    Light Drizzle
    85°72°
  5. Wednesday
    May 20
    Light Drizzle
    85°72°
  6. Thursday
    May 21
    Mostly Clear
    18%
    83°73°
  7. Friday
    May 22
    Partly Cloudy
    81°71°
Ko Olina, HI
Anemometer · 24h winds · from true
NESW
From · True
ENE
069° · steady
Direction
ENE
069°
Sustained
10
mph
Gust
22
mph
Peak 24h
22
avg 7
Beaufort · 3 · GENTLE BRZ
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 7 · pk 22 @ 6:00p
−24h−18h−12h−6hnow
Light breeze holding from the ene.
Ko Olina, HI
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1014.4
-2.0 mb in 3h · falling · 29.96 inHg
Now
1014.4
mb
3h
-2.0
mb
12h
+0.6
mb
24h
+1.7
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10131018
−24h−18h−12h−6hnow
Air sits at the threshold — small shifts decide the day.
Ko Olina, HI
Air quality
31
AQI
Good
PM 2.5
4.4 μg/m³
PM 10
7.0 μg/m³
NO₂
1.7 μg/m³
Ozone
56.0 μg/m³
UV Index
0.3 Low
Ko Olina, HI
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
3:31 PM
Sunrise
5:53 AM
Daylight
13h 10m
Sunset
7:03 PM
Civil dusk
5:29 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Ko Olina, HI
The moon
New Moon
0% illuminated
Moonrise
4:28 PM
Moonset
5:31 AM
In sign
♊︎ Gemini
Ko Olina, HI
Microseason · 28 of 72
May 16–20

Flowers spill across the islands

bird
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Ko Olina at a glance

  • Today vs. normal: 13°F below the seasonal normal for this latitude
  • Last frost: December 25 (climatological average for this latitude)
  • Microseason: 28 of 72, May 16–20
  • Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.

Right now in the garden

Peak growing season

As of May 17, 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.

ZIP codes in Ko Olina

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.