The best time to visit Gambia is Nov–May. Month by month, the verdicts rate Nov–Jun as comfortable on both daytime heat and rainfall — 8 months in all.
Summer monsoon
| Month | High °C | High °F | Rainy days | Verdict |
|---|---|---|---|---|
| January | 27.5 | 82 | 2% | Go |
| February | 28.1 | 83 | 2% | Go |
| March | 28.5 | 83 | 1% | Go |
| April | 27.5 | 82 | 1% | Go |
| May | 27.4 | 81 | 2% | Go |
| June | 28.3 | 83 | 26% | Go |
| July | 28.3 | 83 | 72% | Too wet |
| August | 28.1 | 83 | 92% | Too wet |
| September | 28.5 | 83 | 92% | Too wet |
| October | 29.5 | 85 | 45% | Fair |
| November | 30.1 | 86 | 3% | Go |
| December | 28.4 | 83 | 2% | Go |
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.
March is the driest month, with rain on 1% of days and daytime highs near 28.5°C (83°F). August is the wettest, at 92%. Temperature barely moves all year — just 2.7°C between the warmest and coolest months — so rainfall, not heat, decides when to go. The record rules out too wet in Jul–Sep.