Solomon Islands has no ideal window. No month clears the bar for comfortable travel outright, but Jun–Sep comes closest — rated fair rather than too hot, too cold or too wet.
Cyclones Nov–Apr
| Month | High °C | High °F | Rainy days | Verdict |
|---|---|---|---|---|
| January | 28.5 | 83 | 72% | Too wet |
| February | 28.2 | 83 | 76% | Too wet |
| March | 28.0 | 82 | 73% | Too wet |
| April | 28.1 | 83 | 64% | Too wet |
| May | 28.0 | 82 | 62% | Too wet |
| June | 27.7 | 82 | 56% | Fair |
| July | 27.6 | 82 | 55% | Fair |
| August | 27.8 | 82 | 55% | Fair |
| September | 28.3 | 83 | 54% | Fair |
| October | 28.6 | 83 | 59% | Too wet |
| November | 28.8 | 84 | 59% | Too wet |
| December | 28.9 | 84 | 64% | Too wet |
Verdict combines mean daytime high with rainy-day frequency. “Rainy days” is the share of days in the month with at least 1 mm of rain.
September is the driest month, with rain on 54% of days and daytime highs near 28.3°C (83°F). February is the wettest, at 76%. Temperature barely moves all year — just 1.3°C between the warmest and coolest months — so rainfall, not heat, decides when to go. The record rules out too wet in Oct–May.