Climate and Average Weather Year Round in Hawaii United States

We show the climate in Hawaii by comparing the average weather in 3 representative places: Honolulu, Hilo, and Kahului.

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Honolulu
Hawaii, United States
Hilo
Hawaii, United States
Kahului
Hawaii, United States
Map

Average High and Low Temperature in Hawaii

Average High and Low Temperature in HawaiiJanFebMarAprMayJunJulAugSepOctNovDec62°F62°F64°F64°F66°F66°F68°F68°F70°F70°F72°F72°F74°F74°F76°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°F88°F88°F76688779706483787380NowNowHonoluluHonoluluHiloHiloKahuluiKahului
The daily average high and low air temperature at 2 meters above the ground.
HighJanFebMarAprMayJunJulAugSepOctNovDec
Honolulu 79°F79°F80°F81°F83°F85°F86°F87°F87°F85°F83°F80°F
Hilo 79°F79°F78°F79°F80°F82°F82°F83°F83°F82°F80°F79°F
Kahului 80°F80°F81°F82°F84°F86°F87°F87°F87°F86°F84°F81°F
LowJanFebMarAprMayJunJulAugSepOctNovDec
Honolulu 68°F68°F69°F71°F72°F74°F75°F76°F76°F75°F73°F70°F
Hilo 64°F64°F65°F66°F67°F68°F69°F70°F69°F69°F67°F66°F
Kahului 65°F65°F66°F67°F69°F71°F72°F72°F72°F71°F69°F66°F

Honolulu

Average Hourly Temperature in HonoluluJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcomfortablecomfortablewarmhotcomfortable

Hilo

Average Hourly Temperature in HiloJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcomfortablecomfortablewarmcool

Kahului

Average Hourly Temperature in KahuluiJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcomfortablecomfortablewarmhotcomfortablewarm
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Chance of Clearer Skies in Hawaii

Chance of Clearer Skies in HawaiiJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%79597854NowNowHonoluluHonoluluHiloHiloKahuluiKahului
The percentage of time the sky is clear, mostly clear, or partly cloudy (i.e., less than 60% of the sky is covered by clouds).
Clearer SkiesJanFebMarAprMayJunJulAugSepOctNovDec
Honolulu 77%77%73%68%70%74%75%74%68%60%63%72%
Hilo 74%73%68%63%66%70%74%75%68%56%58%68%
Kahului 76%76%71%67%69%73%75%76%68%59%62%71%

Daily Chance of Precipitation in Hawaii

Daily Chance of Precipitation in HawaiiJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%2563323NowNowHonoluluHonoluluHiloHiloKahuluiKahului
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip.JanFebMarAprMayJunJulAugSepOctNovDec
Honolulu 7.3d6.1d5.9d4.3d3.5d2.1d2.6d2.8d3.3d4.8d5.7d6.7d
Hilo 8.2d7.7d9.6d9.2d7.9d8.2d8.5d7.9d7.6d8.2d8.0d9.0d
Kahului 6.4d5.7d6.1d4.5d3.4d2.2d2.7d3.2d3.6d4.4d5.0d6.1d

Average Monthly Rainfall in Hawaii

Average Monthly Rainfall in HawaiiJanFebMarAprMayJunJulAugSepOctNovDec1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 in8 in8 in2.60.37.32.02.0NowNowHonoluluHonoluluHiloHiloKahuluiKahului
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
RainfallJanFebMarAprMayJunJulAugSepOctNovDec
Honolulu 2.4″2.1″2.0″1.5″0.8″0.3″0.6″0.8″0.9″1.4″1.7″2.2″
Hilo 4.5″4.6″6.3″7.2″3.5″2.4″3.7″4.4″4.4″3.8″4.4″4.5″
Kahului 1.8″1.6″1.8″1.4″0.7″0.3″0.5″0.7″0.8″1.0″1.3″1.7″

Hours of Daylight in Hawaii

Hours of Daylight in HawaiiJanFebMarAprMayJunJulAugSepOctNovDec4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr13.410.8NowNowHonoluluHonoluluKahuluiKahului
The number of hours during which the Sun is at least partly above the horizon.
DaylightJanFebMarAprMayJunJulAugSepOctNovDec
Honolulu 11.0h11.5h12.1h12.7h13.2h13.4h13.3h12.8h12.2h11.6h11.1h10.9h
Hilo 11.1h11.5h12.1h12.6h13.1h13.3h13.2h12.8h12.2h11.7h11.2h11.0h
Kahului 11.0h11.5h12.1h12.7h13.2h13.4h13.2h12.8h12.2h11.6h11.1h10.9h

Chance of Muggy Conditions in Hawaii

Chance of Muggy Conditions in HawaiiJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%932989278327NowNowHonoluluHonoluluHiloHiloKahuluiKahului
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).
Muggy daysJanFebMarAprMayJunJulAugSepOctNovDec
Honolulu 12.4d9.2d9.5d10.5d15.6d21.2d26.4d28.2d27.9d27.4d21.5d15.7d
Hilo 9.5d7.7d10.0d13.0d18.2d22.7d26.3d27.2d25.3d25.0d20.8d14.6d
Kahului 9.8d7.9d9.2d9.6d13.8d18.7d24.0d25.6d23.9d23.6d18.4d12.7d

Average Wind Speed in Hawaii

Average Wind Speed in HawaiiJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mph16.512.312.610.315.911.6NowNowHonoluluHonoluluHiloHiloKahuluiKahului
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph)JanFebMarAprMayJunJulAugSepOctNovDec
Honolulu 12.413.014.415.214.115.816.315.414.013.514.413.6
Hilo 10.310.811.812.311.411.811.811.611.011.111.811.4
Kahului 11.712.413.914.913.915.415.815.113.613.214.013.1

Average Water Temperature in Hawaii

Average Water Temperature in HawaiiJanFebMarAprMayJunJulAugSepOctNovDec75°F75°F76°F76°F77°F77°F78°F78°F79°F79°F80°F80°F81°F81°F80758075NowNowHonoluluHonoluluHiloHiloKahuluiKahului
The daily average wide-area surface water temperature.
Water Temp.JanFebMarAprMayJunJulAugSepOctNovDec
Honolulu 76°F75°F75°F76°F77°F78°F79°F80°F80°F80°F79°F77°F
Hilo 76°F76°F75°F76°F77°F78°F78°F79°F80°F79°F78°F77°F
Kahului 76°F75°F75°F75°F76°F78°F78°F79°F80°F80°F78°F77°F

Tourism Score in Hawaii

Tourism Score in HawaiiJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.26.97.88.0NowNowHonoluluHonoluluHiloHiloKahuluiKahului
The tourism score, which favors clear, rainless days with perceived temperatures between 65°F and 80°F.

Beach/Pool Score in Hawaii

Beach/Pool Score in HawaiiJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.55.86.93.64.5NowNowHonoluluHonoluluHiloHiloKahuluiKahului
The beach/pool score, which favors clear, rainless days with perceived temperatures between 75°F and 90°F.

Growing Season in Hawaii

Growing Season in HawaiiJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowHonoluluHonoluluHiloHiloKahuluiKahului
The percentage chance that a given day is within the growing season, defined as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Growing Degree Days in Hawaii

Growing Degree Days in HawaiiJanFebMarAprMayJunJulAugSepOctNovDec2,000°F2,000°F4,000°F4,000°F6,000°F6,000°F8,000°F8,000°F10,000°F10,000°FNowNowHonoluluHonoluluHiloHiloKahuluiKahului
The average growing degree days accumulated over the course of the year, where growing degree days are defined as the integral of warmth above a base temperature (50°F in this case).

Average Daily Incident Shortwave Solar Energy in Hawaii

Average Daily Incident Shortwave Solar Energy in HawaiiJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh7.64.37.4NowNowHonoluluHonoluluHiloHiloKahuluiKahului
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh)JanFebMarAprMayJunJulAugSepOctNovDec
Honolulu 4.75.46.37.07.47.67.57.26.65.64.74.4
Hilo 4.85.46.06.77.17.37.37.26.65.64.84.5
Kahului 4.75.46.26.97.47.67.47.26.65.64.74.4

This report illustrates the typical weather for Honolulu, Hilo, and Kahului year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used on this page vary between places and are discussed in detail on each place's dedicated page:

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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