Climate Insights for Hanamā‘ulu

The climate in Hanamā‘ulu is warm and mild. The average annual temperature is 24°C and approximately 849mm of precipitation falls per year. Hanamā‘ulu receives a notable amount of rainfall throughout the year, including during its driest month. Hanamā‘ulu is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: September, August, October. The coldest months are February, March, January, when temperatures can drop to 21°C.

Hanamā‘ulu has relatively stable temperatures year-round, staying within a 6°C range. The warmest month is September, when average highs reach 27°C and the mean temperature sits around 26°C. February is the coolest month, with minimum temperatures around 21°C and an average of 22°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.

Hanamā‘ulu is a moderately rainy area, receiving approximately 849mm of precipitation annually, which averages out to around 71mm per month. The wettest month is March, averaging 107mm of rainfall. December and June also tend to see above-average precipitation. The driest month is January, with just 45mm. That's 62mm less than March, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.

Hanamā‘ulu is relatively calm, with an average annual wind speed of 6km/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 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 5km/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.

It is currently spring in Hanamā‘ulu, which began on March 20, 2026. Hanamā‘ulu 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 27°C, while the coldest stretch bottoms out in February near 21°C. Summer is next, beginning on June 21, 2026 — 6 days from now.

The best time to visit Hanamā‘ulu is during January, February, April, May, June, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 68mm per month. By contrast, September can be uncomfortably hot with temperatures reaching 27°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Hanamā‘ulu 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.