Honiara Weather in March
What's the weather like in Honiara (Guadalcanal) in March 2025?
The climate in Honiara during March can be summarized as hot, humid and very wet.
March is in the fall / autumn in Honiara and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a steamy 30°C (85°F), whilst at night 22°C (72°F) is normal.
| Daytime temperature | 29.5°C 85.1°F |
|---|---|
| Nightly temperature | 22.3°C 72.1°F |
| Average temperature | 25.9°C 78.6°F |
| Daily sunshine | 6.1 hrs |
| Avg rainfall | 331 mm 13 ins |
| Rainy days | 22 days |
| Sea temperature | 29.7°C 85.5°F |
| Humidity | 83% |
| Windspeed | 4.7kph 3 mph |
On average March is the wettest month of the year in Honiara with around 331mm 13 inches of rain making it a very wet time to visit. This rainfall is typically spread over 22 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.1 hours of sunshine per day.
March temperatures in Honiara
March rainfall
March hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Honiara in March 2025.
Other monthly averages
Honiara weather stats
| Hottest month: | January | 30.3°C 86.5°F |
|---|---|---|
| Driest month: | June | 100mm 3.9ins |
| Sunniest month: | August | 6.3hrs |
| Coldest month: | July | 29.1°C 84.4°F |
| Wettest month: | March | 331mm 13ins |
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