Honiara Weather in July
What's the weather like in Honiara (Guadalcanal) in July 2025?
The climate in Honiara during July can be summarized as hot, humid and damp.
July is in the winter in Honiara and is typically the coldest month of the year. Daytime maximum temperatures average around a steamy 29°C (85°F), whilst at night 21°C (70°F) is normal.
| Daytime temperature | 29.3°C 84.7°F |
|---|---|
| Nightly temperature | 21.3°C 70.3°F |
| Average temperature | 25.3°C 77.5°F |
| Daily sunshine | 5.3 hrs |
| Avg rainfall | 115 mm 4.5 ins |
| Rainy days | 15 days |
| Sea temperature | 28.6°C 83.4°F |
| Humidity | 80% |
| Windspeed | 4.7kph 3 mph |
On average July is the 4th driest month of the year in Honiara with around 115mm 4.5 inches of rain making it a damp time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.3 hours of sunshine per day.
July temperatures in Honiara
July rainfall
July 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 July 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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