TidePlanet

Weather in Kapaau

14-day forecast · updated today, Thursday, October 29, at 12:05 am (HST)
Now · drizzle 75 °F
Feels like
78 °F
Low / high
75 / 78 °F
Rain
100% · 0.59 in
Wind
13 mph ESE
→ 29.91 inHg · steady UV 6 · high

Today in Kapaau: light rain, 75 °F to 78 °F, with a 100% chance of rain (0.59 in) and a moderate breeze from the east-southeast (13 mph). Tomorrow, light drizzle, 75 °F to 77 °F and a 87% chance of rain. The warmest day of the week is Thursday 29, at 78 °F.

Temperatures for the next 14 days

Day by day

Day Sky Low / high Rain Max wind Max wave High tides Model
Today · 29 Light rain 75 / 78 °F 100% · 0.59 in 17 mph E 4.5 ft 6:23 am · 5:05 pm ECMWF
Fri 30 Light drizzle 75 / 77 °F 87% · 0.18 in 16 mph E 4.5 ft 7:23 am · 5:59 pm ECMWF
Sat 31 Light drizzle 76 / 77 °F 53% · 0.15 in 16 mph E 3.5 ft 8:34 am · 7:35 pm ECMWF
Sun 1 Drizzle 74 / 76 °F 71% · 0.27 in 17 mph ENE 4.7 ft 9:51 am · 10:12 pm ECMWF
Mon 2 Drizzle 73 / 75 °F 86% · 0.40 in 20 mph E 5.4 ft 10:55 am · 11:44 pm ECMWF
Tue 3 Drizzle 72 / 74 °F 53% · 0.18 in 19 mph E 5.5 ft 11:45 am ECMWF
Wed 4 Drizzle 72 / 74 °F 66% · 0.22 in 24 mph E 5.3 ft 12:46 am · 12:27 pm ECMWF
Thu 5 Drizzle 73 / 75 °F 65% · 0.12 in 24 mph E 5.4 ft 1:33 am · 1:03 pm ECMWF
Fri 6 Light drizzle 74 / 76 °F 55% · 0.07 in 25 mph E 7.9 ft 2:12 am · 1:36 pm ECMWF
Sat 7 Light drizzle 74 / 77 °F 56% · 0.07 in 27 mph E 8.0 ft 2:46 am · 2:06 pm ECMWF
Sun 8 Light drizzle 74 / 76 °F 57% · 0.18 in 21 mph ESE 7.9 ft 3:19 am · 2:35 pm ECMWF
Mon 9 Overcast 75 / 78 °F 48% 18 mph ESE 7.2 ft 3:51 am · 3:04 pm ECMWF
Tue 10 Light drizzle 75 / 76 °F 54% · 0.07 in 17 mph E 6.5 ft 4:25 am · 3:33 pm ECMWF
Wed 11 Light drizzle 74 / 76 °F 58% · 0.02 in 19 mph E 8.2 ft 5:01 am · 4:01 pm ECMWF

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

Today, every 3 hours

Time 12:00 am3:00 am6:00 am9:00 am12:00 pm3:00 pm6:00 pm9:00 pm
Sky DrizzleDrizzleLight drizzleOvercastLight drizzleHeavy drizzleLight rainLight drizzle
Temperature 75°76°76°77°78°77°76°76°
Chance of rain 89%81%77%80%87%100%96%89%
Rain 0.03 in0.02 in0.01 in0.00 in0.00 in0.05 in0.07 in0.02 in
Wind (mph) 13 ESE9 ESE12 ESE17 ESE14 E13 E13 E15 E
Humidity 88%87%86%85%84%87%91%89%
UV 00026100
Model ECMWFECMWFECMWFECMWFECMWFECMWFECMWFECMWF

Do the models agree?

Low confidence

They don't agree on temperature tomorrow: it may change, so check again closer to the day.

What 4 forecast models say for the next few days. The closer they are, the more reliable the forecast.

Do the models agree? · High
High (°F) TodayFri 30Sat 31Sun 1Mon 2Tue 3Wed 4
ECMWF 78°77°77°76°75°74°74°
AIFS 77°78°78°77°77°77°78°
GFS 77°77°81°80°75°78°77°
ICON 84°87°85°86°81°83°87°
Confidence mediumlowmediummediummediummediumlow
Do the models agree? · Rain
Rain TodayFri 30Sat 31Sun 1Mon 2Tue 3Wed 4
ECMWF 0.59 in0.18 in0.15 in0.27 in0.40 in0.18 in0.22 in
AIFS 0.67 in0.25 in0.13 in0.50 in0.38 in0.18 in0.14 in
GFS 0.51 in0.16 in0.01 in0.06 in0.10 in0.01 in0.04 in
ICON 0.12 in000000
Confidence mediummediummediummediummediummediumlow
Do the models agree? · Wind
Wind (mph) TodayFri 30Sat 31Sun 1Mon 2Tue 3Wed 4
ECMWF 1723162216221720202619292435
AIFS 13141314191919
GFS 1522182116162119232422222630
ICON 6208158161547175113421038
Confidence mediummediummediumhighmediummediumlow

Chance of rain from the ensemble models

Model TodayFri 30Sat 31Sun 1Mon 2Tue 3Wed 4
ECMWF (51 scenarios) 100%87%53%71%86%53%66%
GFS (GEFS, 31 scenarios) 100%97%55%39%68%42%39%

Each model's day runs midnight to midnight local time; models that reach fewer days are left blank. Rain: daily total. Wind: the day's highest average wind and, in small type, the strongest gust. Highlighted: values that stand out from the rest. The chance of rain comes from many runs of the same model with slightly different starting data.

Outlook

How the coming weeks and months compare with what is normal for the time of year. It is a trend, not a day-by-day forecast.

The next few weeks look normal for the time of year.

Next 6 weeks

When TemperatureTemp. Rain Sea Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8 Normal −0.7 °F A bit above +35% Normal +0.4 °F —
Nov 9 – Nov 15Nov 9–Nov 15 Normal −0.2 °F A bit above +24% Normal +0.4 °F —
Nov 16 – Nov 22Nov 16–Nov 22 Normal +0.2 °F Normal Normal +0.4 °F 77° / 76°
Nov 23 – Nov 29Nov 23–Nov 29 Normal 0.0 °F Normal Normal +0.4 °F 77° / 75°
Nov 30 – Dec 6Nov 30–Dec 6 Normal −0.2 °F Normal Normal +0.2 °F 76° / 75°

Coming months

When TemperatureTemp. Rain Sea
November A bit above +0.9 °F Normal A bit above +0.7 °F
December Normal +0.4 °F A bit below −28% Normal +0.4 °F
January Normal −0.2 °F A bit below −40% Normal +0.2 °F
February Normal −0.2 °F A bit below −35% Normal −0.2 °F
March Normal −0.2 °F A bit below −45% Normal −0.2 °F

Weeks: ECMWF 46-day (average of its scenarios), against the normal of the last 20 years for those dates. Months: ECMWF SEAS5. Rain: total against normal. The further ahead, the closer it gets to normal and the less detail it can give.

Kapaau climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Kapaau is from April to September and in January: highs of 79 °F to 85 °F, about 10 rainy days a month and 8 hours of sunshine a day.

Hurricane season: from July to September, peaking in July. In the last 30 years (1996–2025), 5 tropical cyclones passed within 93 mi of Kapaau, about 2 every 10 years; one of them with hurricane-force winds (74 mph or more). The most recent: Douglas, in July 2020.

Month High Low Rain Rainy daysDays Sun (h/day) Water Waves Cyclones
JanuaryJan 79° 65° 4.27 in 9 6.3 76° 6.0 ft –
FebruaryFeb 78° 65° 4.48 in 10 6.6 76° 6.1 ft –
MarchMar 79° 66° 8.18 in 12 6.3 76° 5.9 ft –
AprilApr 80° 67° 3.17 in 11 7.7 76° 5.6 ft –
MayMay 82° 68° 2.10 in 10 8.4 77° 5.2 ft –
JuneJun 83° 69° 0.47 in 11 8.9 78° 5.3 ft –
JulyJul 83° 70° 0.48 in 11 8.5 79° 5.3 ft 3
AugustAug 84° 71° 0.82 in 10 8.0 80° 5.1 ft 1
SeptemberSep 85° 71° 1.32 in 10 7.7 80° 5.0 ft 1
OctoberOct 84° 70° 3.63 in 10 7.2 80° 5.2 ft –
NovemberNov 82° 69° 3.57 in 11 6.0 79° 6.1 ft –
DecemberDec 80° 67° 6.31 in 11 6.1 77° 6.5 ft –
Month Water Waves Cyclones
Jan 76° 6.0 ft –
Feb 76° 6.1 ft –
Mar 76° 5.9 ft –
Apr 76° 5.6 ft –
May 77° 5.2 ft –
Jun 78° 5.3 ft –
Jul 79° 5.3 ft 3
Aug 80° 5.1 ft 1
Sep 80° 5.0 ft 1
Oct 80° 5.2 ft –
Nov 79° 6.1 ft –
Dec 77° 6.5 ft –

Days: rainy days in the month. Sun: hours a day.

A normal year brings 38.81 in of rain on about 127 days and about 2,650 hours of sunshine.

Cyclones: how many tropical cyclones (tropical storms, hurricanes and typhoons) passed within 93 mi in each month from 1996 to 2025, according to IBTrACS (NOAA).

1991–2020 averages. Highs, lows and rainfall: TerraClimate; rainy days (0.04 in or more): NASA POWER (MERRA-2); sunshine hours: estimated from solar radiation; water: NOAA OISST; waves (average height): ERA5, 2011–2020. Normals are not a forecast: any given year can turn out very different. Sources and licenses

Temperature

Now75 °Ffeels like 78 °F
Tomorrow75 / 77 °F

It's 75 °F now (feels like 78 °F). Today, 75 °F to 78 °F; tomorrow, 75 °F to 77 °F.

Chance of rain

  • Today 100% 0.59 in
  • Fri 30 87% 0.18 in
  • Sat 31 53% 0.15 in
  • Sun 1 71% 0.27 in
  • Mon 2 86% 0.40 in
  • Tue 3 53% 0.18 in
  • Wed 4 66% 0.22 in

Today the chance of rain reaches 100%, with 0.59 in in total. The next day with likely rain is Friday 30: 87% and 0.18 in.

Recent rain: last 24 hours, 0.68 in; last 3 days, 0.75 in; last 7 days, 1.10 in.

Humidity and dew point

Humidity88%
Dew point71 °F

Humidity is 88% now and the dew point is 71 °F. With a dew point this high, it feels muggy.

The dew point is the temperature at which the air becomes saturated: the higher it is, the heavier the air feels.

Visibility and fog

Now1.4 mimisty
Clouds100%

Visibility is misty now (1.4 mi). No fog expected today.

UV index

Now0
Today's peak6high

Fri 30: 7 · Sat 31: 8 · Sun 1: 7

IndexLevelWhat to do
0–2lowNo special protection needed.
3–5moderateHat, sunglasses and sunscreen around midday.
6–7highSunscreen, hat and shade between 12 and 4 pm.
8–10very highAvoid the midday sun; reflection off the water adds to it.
11+extremeAvoid the sun between 11 am and 5 pm; protect yourself even if it is cloudy.

Reflection off water and sand adds radiation: protect yourself more on a boat or at the beach.

Barometric pressure

  • ↗ Rising Anglers say fish bite less for a while
  • → Steady · now Anglers expect normal activity
  • ↘ Falling Anglers say fish feed more before the change

Steady now (−0.02 inHg in 3 hours). Over the next 48 hours: +0.03 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityGood · 23
Saharan dustNo

Previous days

The weather over the last 30 days, as the models analyzed it. Tap a day to see it hour by hour.

DaySkyLow / highRainMax wind
Wed 28 Light showers75 / 78 °F0.66 in18 mph E
Tue 27 Light drizzle76 / 79 °F0.04 in11 mph E
Mon 26 Light drizzle73 / 77 °F0.02 in13 mph ESE
Sun 25 Drizzle74 / 75 °F0.21 in11 mph E
Sat 24 Light drizzle75 / 77 °F0.07 in13 mph E
Fri 23 Light drizzle74 / 76 °F0.05 in14 mph E
Thu 22 Light drizzle74 / 78 °F0.02 in18 mph E
Show all 30 days
DaySkyLow / highRainMax wind
Wed 21 Drizzle74 / 77 °F0.14 in24 mph E
Tue 20 Light drizzle75 / 78 °F0.07 in25 mph E
Mon 19 Drizzle75 / 78 °F0.27 in24 mph E
Sun 18 Heavy drizzle73 / 77 °F0.50 in25 mph E
Sat 17 Light drizzle74 / 78 °F0.14 in21 mph E
Fri 16 Heavy drizzle74 / 78 °F0.39 in24 mph E
Thu 15 Light drizzle75 / 79 °F0.12 in22 mph E
Wed 14 Light drizzle75 / 77 °F0.01 in16 mph E
Tue 13 Light drizzle75 / 78 °F0.04 in24 mph E
Mon 12 Light drizzle74 / 77 °F0.07 in20 mph E
Sun 11 Clear sky74 / 78 °F017 mph E
Sat 10 Light drizzle77 / 78 °F0.01 in22 mph E
Fri 9 Partly cloudy76 / 81 °F022 mph E
Thu 8 Light drizzle77 / 79 °F0.02 in6 mph NE
Wed 7 Partly cloudy73 / 77 °F09 mph E
Tue 6 Mainly clear73 / 77 °F015 mph ESE
Mon 5 Light drizzle74 / 78 °F0.08 in18 mph E
Sun 4 Light drizzle75 / 78 °F0.12 in21 mph E
Sat 3 Light drizzle74 / 77 °F0.11 in17 mph E
Fri 2 Mainly clear76 / 80 °F017 mph E
Thu 1 Partly cloudy76 / 80 °F018 mph E
Wed 30 Overcast76 / 80 °F013 mph E
Tue 29 Mainly clear74 / 80 °F020 mph E

These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.

Questions about the weather in KapaauQuestions

What's the weather like today in Kapaau?

Light rain, from 75 °F to 78 °F, with a moderate breeze from the east-southeast (13 mph) and a 100% chance of rain.

Will it rain tomorrow in Kapaau?

On Friday 30 the chance of rain is 87% (0.18 in): light drizzle.

How warm will it be this week?

Between a low of 72 °F and a high of 78 °F; the warmest day, Thursday 29.

What's the UV index today?

It reaches 6 (high). Sunscreen, hat and shade between 12 and 4 pm.

Is the pressure rising or falling?

It's 29.91 inHg and steady: +0.02 inHg over the last 24 hours.

When is the best time to visit Kapaau?

The best time to visit Kapaau is from April to September and in January: highs of 79 °F to 85 °F, about 10 rainy days a month and 8 hours of sunshine a day.

What is the weather like in Kapaau in October?

In October, Kapaau normally sees highs of 84 °F and lows of 70 °F, with about 10 rainy days (3.63 in for the month) and 7 hours of sunshine a day. The sea is around 80 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Kapaau?

The warmest is September, with average highs of 85 °F, and the coldest February, with lows of 65 °F. The wettest is March (8.18 in) and the driest, June.

When is hurricane season in Kapaau?

Hurricane season: from July to September, peaking in July. In the last 30 years (1996–2025), 5 tropical cyclones passed within 93 mi of Kapaau, about 2 every 10 years; one of them with hurricane-force winds (74 mph or more). The most recent: Douglas, in July 2020.

More about Kapaau today

Weather near Kapaau

Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.

Learn more

Weather: Open-Meteo, CC BY 4.0, with the best model for each spot and lead time (NOAA HRRR and NBM in the U.S., Météo-France AROME, DWD ICON-EU, ECMWF IFS and NOAA GFS); ECMWF grid point 3.5 mi away. The comparison also uses ICON (DWD), AIFS (ECMWF) and ARPEGE (Météo-France). Outlook: ECMWF 46-day and SEAS5. Chance of rain from ensemble models (ECMWF, GEFS and NBM). UV, air quality and pollen: CAMS (Copernicus).

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 12:05 am (local time).

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