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

Weather in Waikapu, Hawaii

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

Waikapu, HI
Sunday, May 17 at 4:05 AM
76
°
Mostly Clear
Feels like
79°
Humidity
71%
Wind
5 mph
Sunrise
5:47 AM
Sunset
6:56 PM
Waikapu, HI
Hour by hour · 24h
72°
6p
71°
7p
70°
8p
70°
9p
69°
10p
69°
11p
68°
12a
68°
1a
66°
12%
2a
65°
16%
3a
66°
20%
4a
66°
22%
5a
66°
20%
6a
69°
15%
7a
71°
10%
8a
75°
9a
78°
10a
80°
11a
81°
12p
81°
1p
80°
2p
79°
3p
76°
11%
4p
75°
12%
5p
L 65°H 81°
Waikapu, HI
7-day forecast
  1. Today
    May 16
    Light Drizzle
    84°67°
  2. Sunday
    May 17
    Overcast
    82°66°
  3. Monday
    May 18
    Light Drizzle
    80°68°
  4. Tuesday
    May 19
    Mostly Clear
    24%
    81°67°
  5. Wednesday
    May 20
    Light Drizzle
    67%
    81°68°
  6. Thursday
    May 21
    Light Drizzle
    67%
    79°68°
  7. Friday
    May 22
    Light Drizzle
    68%
    78°66°
Waikapu, HI
Anemometer · 24h winds · from true
NESW
From · True
NE
049° · backing 66°
Direction
NE
049°
Sustained
5
mph
Gust
13
mph
Peak 24h
19
avg 4
Beaufort · 2 · LIGHT 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 4 · pk 19 @ 12:00p
−24h−18h−12h−6hnow
Light breeze backing 66° from the ne.
Waikapu, HI
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
982.4
-1.5 mb in 3h · falling · 29.01 inHg
Now
982.4
mb
3h
-1.5
mb
12h
+0.6
mb
24h
+2.3
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 980985
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Waikapu, HI
Air quality
24
AQI
Good
PM 2.5
2.9 μg/m³
PM 10
4.8 μg/m³
NO₂
0.6 μg/m³
Ozone
44.0 μg/m³
UV Index
0.1 Low
Waikapu, HI
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
3:25 PM
Sunrise
5:47 AM
Daylight
13h 09m
Sunset
6:56 PM
Civil dusk
5:21 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Waikapu, HI
The moon
New Moon
0% illuminated
Moonrise
4:23 PM
Moonset
5:23 AM
In sign
♊︎ Gemini
Waikapu, 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 →

Waikapu at a glance

  • Today vs. normal: 15°F below the seasonal normal for this latitude
  • Last frost: December 22 (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 Waikapu

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.