Climate Insights for Hāwī

Hawaii County, Hawaii, United States

Hottest
September
26°C peak
Coldest
February
17°C low
Wettest
August
177mm rain
Best to Visit
January, November
Mild temps & low rain

Climate Overview

The climate in Hāwī is warm and mild. The average annual temperature is 22°C and approximately 1417mm of precipitation falls per year. Hāwī receives a notable amount of rainfall throughout the year, including during its driest month. Hāwī is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: September, August, July. The coldest months are February, January, March, when temperatures can drop to 17°C.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 23° Average: 20° Min: 17° Feb Max: 23° Average: 19° Min: 17° Mar Max: 23° Average: 20° Min: 18° Apr Max: 24° Average: 21° Min: 19° May Max: 24° Average: 22° Min: 19° Jun Max: 25° Average: 22° Min: 20° Jul Max: 26° Average: 23° Min: 21° Aug Max: 26° Average: 23° Min: 21° Sep Max: 26° Average: 23° Min: 21° Oct Max: 26° Average: 23° Min: 20° Nov Max: 25° Average: 22° Min: 19° Dec Max: 24° Average: 20° Min: 18°
Max
Average
Min

Hāwī has relatively stable temperatures year-round, staying within a 9°C range. The warmest month is September, when average highs reach 26°C and the mean temperature sits around 23°C. February is the coolest month, with minimum temperatures around 17°C and an average of 19°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows.

Precipitation

0mm 50mm 100mm 150mm 200mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 76mm Feb Precipitation: 136mm Mar Precipitation: 107mm Apr Precipitation: 140mm May Precipitation: 123mm Jun Precipitation: 103mm Jul Precipitation: 122mm Aug Precipitation: 177mm Sep Precipitation: 109mm Oct Precipitation: 114mm Nov Precipitation: 73mm Dec Precipitation: 136mm
Precipitation

Hāwī is a fairly wet location, receiving approximately 1417mm of precipitation annually, which averages out to around 118mm per month. The wettest month is August, averaging 177mm of rainfall. April and February also tend to see above-average precipitation. The driest month is November, with just 73mm. That's 104mm less than August, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.

Wind

0km/h 5km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 3km/h Feb Wind Speed: 3km/h Mar Wind Speed: 3km/h Apr Wind Speed: 3km/h May Wind Speed: 3km/h Jun Wind Speed: 4km/h Jul Wind Speed: 4km/h Aug Wind Speed: 4km/h Sep Wind Speed: 3km/h Oct Wind Speed: 3km/h Nov Wind Speed: 3km/h Dec Wind Speed: 3km/h
Wind Speed

Hāwī is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

4 days until Summer

It is currently spring in Hāwī, which began on March 20, 2026. Hāwī is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in September at around 26°C, while the coldest stretch bottoms out in February near 17°C. Summer is next, beginning on June 21, 2026 — 4 days from now.

Spring

Temperatures range from 18 to 24°C. Rainfall is heavy, totalling around 370mm across the season with a monthly average of 123mm. Winds are generally light, averaging 3km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 20 to 26°C. Rainfall is heavy, totalling around 402mm across the season with a monthly average of 134mm. Winds are generally light, averaging 4km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 19 to 26°C. Precipitation is moderate at around 296mm for the season, averaging 99mm per month. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 17 to 24°C. Rainfall is heavy, totalling around 349mm across the season with a monthly average of 116mm. Winds are generally light, averaging 3km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 20°
Feb 19°
Mar 20°
Apr 21°
May 22°
Jun 22°
Jul 23°
Aug 23°
Sep 23°
Oct 23°
Nov 22°
Dec 20°

The best time to visit Hāwī is during January and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 75mm per month. By contrast, September can be uncomfortably hot with highs reaching 26°C, while February is the coldest period with lows dropping to 17°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

Monthly Climate Data

The table below shows monthly climate averages for Hāwī based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
17 °C
23 °C
3 km/h
76 mm
0 cm
Feb
17 °C
23 °C
3 km/h
136 mm
0 cm
Mar
18 °C
23 °C
3 km/h
107 mm
0 cm
Apr
19 °C
24 °C
3 km/h
140 mm
0 cm
May
19 °C
24 °C
3 km/h
123 mm
0 cm
Jun Current
20 °C
25 °C
4 km/h
103 mm
0 cm
Jul
21 °C
26 °C
4 km/h
122 mm
0 cm
Aug
21 °C
26 °C
4 km/h
177 mm
0 cm
Sep
21 °C
26 °C
3 km/h
109 mm
0 cm
Oct
20 °C
26 °C
3 km/h
114 mm
0 cm
Nov
19 °C
25 °C
3 km/h
73 mm
0 cm
Dec
18 °C
24 °C
3 km/h
136 mm
0 cm
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