Weather in Waimalu

14-day forecast · updated today, Wednesday, October 28, at 5:59 pm (HST)

Now · light drizzle 74 °F

Feels like: 83 °F
Low / high: 73 / 76 °F
Rain: 100% · 2.41 in
Wind: 4 mph ENE

→ 29.89 inHg · steady

Today in Waimalu: rain, 73 °F to 76 °F, with a 100% chance of rain (2.41 in) and a light breeze from the east-northeast (4 mph). Tomorrow, drizzle, 73 °F to 78 °F and a 88% chance of rain. The warmest day of the week is Saturday 31, at 83 °F.

Measured now at the airport

Honolulu (PHNL), 5.2 mi away · 1 h 6 min ago

Visibility9.9 mi or more

WeatherNothing to note

Temperature78 °F

Wind5 mph from the east-southeast

It's what the airport's weather station measured, not a forecast: on the coast, wind and fog can be different. Airports report every 30 or 60 minutes.

Airport METAR report, via NOAA's Aviation Weather Center (aviationweather.gov). Sources and licenses

Temperatures for the next 14 days

76° 73°
Today
78° 73°
Thu 29
81° 71°
Fri 30
83° 69°
Sat 31
80° 69°
Sun 1
78° 69°
Mon 2
73° 68°
Tue 3
76° 69°
Wed 4
76° 72°
Thu 5
79° 71°
Fri 6
79° 70°
Sat 7
80° 67°
Sun 8
82° 66°
Mon 9
75° 67°
Tue 10

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 28	Rain	73 / 76 °F	100% · 2.41 in	5 mph ENE	4.9 ft	5:41 am · 5:04 pm	ECMWF
Thu 29	Drizzle	73 / 78 °F	88% · 0.21 in	7 mph NE	4.9 ft	6:32 am · 5:52 pm	ECMWF
Fri 30	Light drizzle	71 / 81 °F	75% · 0.05 in	9 mph NE	4.9 ft	7:34 am · 8:00 pm	ECMWF
Sat 31	Overcast	69 / 83 °F	49%	6 mph NE	4.4 ft	8:42 am · 10:16 pm	ECMWF
Sun 1	Drizzle	69 / 80 °F	84% · 0.18 in	11 mph NNE	4.3 ft	9:49 am · 11:53 pm	ECMWF
Mon 2	Light drizzle	69 / 78 °F	66% · 0.05 in	13 mph NE	4.4 ft	10:58 am	ECMWF
Tue 3	Drizzle	68 / 73 °F	61% · 0.33 in	10 mph NE	3.9 ft	12:44 am · 12:01 pm	ECMWF
Wed 4	Drizzle	69 / 76 °F	78% · 0.26 in	13 mph ENE	4.4 ft	1:23 am · 12:51 pm	ECMWF
Thu 5	Drizzle	72 / 76 °F	73% · 0.30 in	15 mph ENE	5.7 ft	2:01 am · 1:34 pm	ECMWF
Fri 6	Light drizzle	71 / 79 °F	63% · 0.15 in	13 mph ENE	5.4 ft	2:37 am · 2:14 pm	ECMWF
Sat 7	Light drizzle	70 / 79 °F	63% · 0.08 in	11 mph ENE	4.2 ft	3:13 am · 2:51 pm	ECMWF
Sun 8	Overcast	67 / 80 °F	60%	9 mph NE	4.1 ft	3:47 am · 3:27 pm	ECMWF
Mon 9	Overcast	66 / 82 °F	55%	6 mph NE	3.4 ft	4:20 am · 3:59 pm	ECMWF
Tue 10	Light drizzle	67 / 75 °F	50% · 0.18 in	10 mph NE	3.9 ft	4:51 am · 4:27 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 am	3:00 am	6:00 am	9:00 am	12:00 pm	3:00 pm	6:00 pm	9:00 pm
Sky	Rain	Rain	Light rain	Rain	Rain	Rain	Light drizzle	Overcast
Temperature	73°	73°	74°	75°	76°	76°	74°	73°
Chance of rain	100%	100%	100%	100%	100%	100%	81%	46%
Rain	0.22 in	0.12 in	0.09 in	0.14 in	0.11 in	0.11 in	0.01 in	0.00 in
Wind (mph)	2 NNE	1 SE	3 NE	1 NNE	2 ENE	2 E	4 ENE	4 NE
Humidity	99%	100%	100%	100%	98%	98%	100%	100%
UV	0	0	0	0	1	2	0	0
Model	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF

Do the models agree?

Low confidence

They don't agree on rain 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.

HighRainWind

Do the models agree? · High
High (°F)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	76°	78°	81°	83°	80°	78°	73°
AIFS	78°	82°	82°	83°	80°	80°	80°
GFS	76°	81°	81°	83°	80°	79°	79°
ICON	80°	83°	83°	83°	83°	82°	81°
Confidence	high	high	high	high	high	high	medium

Do the models agree? · Rain
Rain	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	2.41 in	0.21 in	0.05 in	0	0.18 in	0.05 in	0.33 in
AIFS	1.64 in	0.12 in	0.04 in	0.08 in	0.14 in	0.04 in	0.02 in
GFS	0.53 in	0.02 in	0.00 in	0.00 in	0.01 in	0.00 in	0
ICON	0.54 in	0	0	0	0	0	0
Confidence	medium	low	medium	medium	medium	medium	medium

Do the models agree? · Wind
Wind (mph)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	512	718	923	616	1128	1330	1029
AIFS	8	11	11	7	16	15	15
GFS	69	916	814	810	1823	2024	1823
ICON	512	819	1022	615	1125	1226	1226
Confidence	high	high	high	high	medium	medium	medium

Chance of rain from the ensemble models

Model	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF (51 scenarios)	100%	88%	75%	49%	84%	66%	61%
GFS (GEFS, 31 scenarios)	100%	87%	55%	27%	32%	39%	33%

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.

Next few weeks, compared with normal: a bit cooler and a bit drier.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	A bit below −2.0 °F	A bit below −42%	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit below −1.1 °F	A bit below −29%	78° / 72°
Nov 16 – Nov 22Nov 16–Nov 22	Normal −0.7 °F	A bit below −50%	78° / 72°
Nov 23 – Nov 29Nov 23–Nov 29	Normal −0.7 °F	Below −52%	78° / 71°
Nov 30 – Dec 6Nov 30–Dec 6	Normal −0.5 °F	Below −51%	77° / 71°

Coming months

When	TemperatureTemp.	Rain
November	Normal +0.7 °F	Normal
December	Normal +0.5 °F	Below −60%
January	Normal 0.0 °F	Below −74%
February	Normal −0.2 °F	Below −66%
March	Normal 0.0 °F	Below −69%

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. The long-range sea temperature isn't usable at this spot (the model's grid cell falls on land).

Waimalu climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Waimalu is from April to September: highs of 82 °F to 87 °F, about 4 rainy days a month and 8 hours of sunshine a day.

Tropical cyclones rarely pass near Waimalu: 2 within 93 mi in the last 30 years (1996–2025), most recently Douglas, in July 2020.

80° 64°

JanJ
80° 64°

FebF
81° 65°

MarM
82° 67°

AprA
84° 68°

MayM
85° 71°

JunJ
86° 72°

JulJ
87° 72°

AugA
87° 72°

SepS
86° 71°

OctO
83° 69°

NovN
81° 67°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves
JanuaryJan	80°	64°	4.86 in	6	6.3	76°	5.9 ft
FebruaryFeb	80°	64°	2.08 in	7	6.8	75°	5.8 ft
MarchMar	81°	65°	5.08 in	8	6.8	75°	5.5 ft
AprilApr	82°	67°	2.68 in	5	8.0	76°	5.2 ft
MayMay	84°	68°	2.65 in	5	8.2	77°	4.8 ft
JuneJun	85°	71°	2.02 in	4	8.9	78°	5.0 ft
JulyJul	86°	72°	2.65 in	4	8.6	79°	4.9 ft
AugustAug	87°	72°	2.21 in	3	8.3	80°	4.8 ft
SeptemberSep	87°	72°	1.87 in	5	8.0	80°	4.7 ft
OctoberOct	86°	71°	3.85 in	7	7.2	80°	4.9 ft
NovemberNov	83°	69°	4.03 in	9	6.3	79°	5.4 ft
DecemberDec	81°	67°	2.98 in	8	6.2	77°	5.8 ft

Month	Water	Waves
Jan	76°	5.9 ft
Feb	75°	5.8 ft
Mar	75°	5.5 ft
Apr	76°	5.2 ft
May	77°	4.8 ft
Jun	78°	5.0 ft
Jul	79°	4.9 ft
Aug	80°	4.8 ft
Sep	80°	4.7 ft
Oct	80°	4.9 ft
Nov	79°	5.4 ft
Dec	77°	5.8 ft

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

A normal year brings 36.96 in of rain on about 71 days and about 2,750 hours of sunshine.

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

Now74 °Ffeels like 83 °F

Tomorrow73 / 78 °F

It's 74 °F now (feels like 83 °F). Today, 73 °F to 76 °F; tomorrow, 73 °F to 78 °F.

Chance of rain

Today 100% 2.41 in
Thu 29 88% 0.21 in
Fri 30 75% 0.05 in
Sat 31 49%
Sun 1 84% 0.18 in
Mon 2 66% 0.05 in
Tue 3 61% 0.33 in

Today the chance of rain reaches 100%, with 2.41 in in total. The next day with likely rain is Thursday 29: 88% and 0.21 in.

Recent rain: last 24 hours, 3.17 in; last 3 days, 3.66 in; last 7 days, 3.77 in.

Humidity and dew point

Humidity100%

Dew point74 °F

Humidity is 100% now and the dew point is 74 °F. With a dew point this high, it feels muggy. The temperature is very close to the dew point: fog may form.

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

Visibility and fog

Now15 migood

Clouds98%

Visibility is good now (15 mi). No fog expected today.

UV index

Now0

Today's peak3moderate

Thu 29: 4 · Fri 30: 8 · Sat 31: 8

Index	Level	What to do
0–2	low	No special protection needed.
3–5	moderate	Hat, sunglasses and sunscreen around midday.
6–7	high	Sunscreen, hat and shade between 12 and 4 pm.
8–10	very high	Avoid the midday sun; reflection off the water adds to it.
11+	extreme	Avoid 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

29.9030.00 29.99

Steady now (+0.02 inHg in 3 hours). Over the next 48 hours: +0.06 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.

Day	Sky	Low / high	Rain	Max wind
Tue 27	Rain	66 / 81 °F	1.28 in	4 mph NE
Mon 26	Overcast	65 / 86 °F	0	6 mph NNE
Sun 25	Light drizzle	68 / 83 °F	0.02 in	9 mph NNE
Sat 24	Light drizzle	69 / 85 °F	0.06 in	9 mph NNE
Fri 23	Overcast	70 / 84 °F	0	9 mph NE
Thu 22	Light drizzle	68 / 84 °F	0.02 in	8 mph NE
Wed 21	Light drizzle	71 / 83 °F	0.05 in	9 mph ENE

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Tue 20	Light drizzle	73 / 82 °F	0.18 in	14 mph ENE
Mon 19	Light drizzle	73 / 80 °F	0.21 in	12 mph ENE
Sun 18	Drizzle	71 / 81 °F	0.22 in	14 mph ENE
Sat 17	Light drizzle	72 / 82 °F	0.11 in	13 mph ENE
Fri 16	Light drizzle	73 / 84 °F	0.14 in	13 mph ENE
Thu 15	Light drizzle	72 / 84 °F	0.06 in	12 mph ENE
Wed 14	Light drizzle	68 / 85 °F	0.01 in	8 mph NE
Tue 13	Overcast	71 / 85 °F	0	9 mph ENE
Mon 12	Partly cloudy	69 / 85 °F	0	7 mph ENE
Sun 11	Overcast	70 / 85 °F	0	5 mph NE
Sat 10	Overcast	73 / 85 °F	0	8 mph ENE
Fri 9	Light drizzle	74 / 89 °F	0.02 in	5 mph SSE
Thu 8	Showers	73 / 79 °F	1.26 in	12 mph S
Wed 7	Drizzle	67 / 87 °F	0.19 in	6 mph S
Tue 6	Light drizzle	70 / 83 °F	0.05 in	7 mph NE
Mon 5	Light drizzle	72 / 83 °F	0.06 in	11 mph NE
Sun 4	Drizzle	73 / 82 °F	0.17 in	11 mph NE
Sat 3	Light drizzle	72 / 85 °F	0.01 in	9 mph NE
Fri 2	Rain	73 / 82 °F	0.60 in	4 mph E
Thu 1	Light rain	74 / 86 °F	0.53 in	6 mph SE
Wed 30	Drizzle	75 / 81 °F	0.25 in	8 mph SSE
Tue 29	Overcast	71 / 91 °F	0	6 mph ESE
Mon 28	Light drizzle	75 / 87 °F	0.05 in	14 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 WaimaluQuestions

What's the weather like today in Waimalu?

Rain, from 73 °F to 76 °F, with a light breeze from the east-northeast (4 mph) and a 100% chance of rain.

Will it rain tomorrow in Waimalu?

On Thursday 29 the chance of rain is 88% (0.21 in): drizzle.

How warm will it be this week?

Between a low of 68 °F and a high of 83 °F; the warmest day, Saturday 31.

What's the UV index today?

It reaches 3 (moderate). Hat, sunglasses and sunscreen around midday.

Is the pressure rising or falling?

It's 29.89 inHg and steady: −0.04 inHg over the last 24 hours.

When is the best time to visit Waimalu?

The best time to visit Waimalu is from April to September: highs of 82 °F to 87 °F, about 4 rainy days a month and 8 hours of sunshine a day.

What is the weather like in Waimalu in October?

In October, Waimalu normally sees highs of 86 °F and lows of 71 °F, with about 7 rainy days (3.85 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 Waimalu?

The warmest is August, with average highs of 87 °F, and the coldest February, with lows of 64 °F. The wettest is March (5.08 in) and the driest, September.

More about Waimalu today

Weather near Waimalu

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 8.6 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 5:59 pm (local time).

Spotted a mistake? Tell us · Where the weather and sea data come from