Climate of Guadalcanal, Solomon Islands
Area-weighted average across Guadalcanal. For where people actually live and travel, see the cities below.
Guadalcanal, a subdivision of Solomon Islands, has a tropical climate on average. Area-weighted monthly temperatures across the whole territory range from 23.8°C / 74.8°F in July to 25.2°C / 77.4°F in December, with rainfall from 158 mm / 6.2 in to 333 mm / 13.1 in depending on the season (2806 mm / 110.5 in total across the year).
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 25.1°C77.2°F | 329 mm13″ | Tropical |
| February | 25°C77°F | 333 mm13.1″ | Tropical |
| March | 24.9°C76.8°F | 307 mm12.1″ | Tropical |
| April | 24.8°C76.6°F | 228 mm9″ | Tropical |
| May | 24.6°C76.3°F | 194 mm7.6″ | Tropical |
| June | 24.1°C75.4°F | 158 mm6.2″ | Tropical |
| July | 23.8°C74.8°F | 195 mm7.7″ | Tropical |
| August | 23.9°C75°F | 203 mm8″ | Tropical |
| September | 24.2°C75.6°F | 203 mm8″ | Tropical |
| October | 24.7°C76.5°F | 197 mm7.8″ | Tropical |
| November | 25°C77°F | 207 mm8.1″ | Tropical |
| December | 25.2°C77.4°F | 252 mm9.9″ | Tropical |
Frequently asked questions
What is the best time to visit Guadalcanal?
Guadalcanal, Solomon Islands does not have a clear sunny-and-dry window by our cutoffs. The warmest month is December at 25.2°C / 77.4°F, and the driest is June at 158 mm / 6.2 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of Guadalcanal?
Guadalcanal, Solomon Islands has area-weighted monthly average temperatures ranging from 23.8°C / 74.8°F in July to 25.2°C / 77.4°F in December. Annual rainfall averages about 2806 mm / 110.5 in, with the wettest month being February (333 mm / 13.1 in) and the driest June (158 mm / 6.2 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Guadalcanal?
The hottest month in Guadalcanal is December, with an area-wide average temperature of 25.2°C / 77.4°F.
What is the coldest month in Guadalcanal?
The coldest month in Guadalcanal is July, with an area-wide average temperature of 23.8°C / 74.8°F.
When does it rain most in Guadalcanal?
The wettest month in Guadalcanal is February, averaging about 333 mm / 13.1 in of rainfall. The driest is June with about 158 mm / 6.2 in.