The best time to visit Benin is Dec–Jan. Month by month, the verdicts rate Nov–Feb as comfortable on both daytime heat and rainfall — 4 months in all.
Summer monsoon
| Month | High °C | High °F | Rainy days | Verdict |
|---|---|---|---|---|
| January | 30.4 | 87 | 15% | Go |
| February | 31.0 | 88 | 32% | Go |
| March | 30.4 | 87 | 63% | Too wet |
| April | 29.7 | 85 | 82% | Too wet |
| May | 29.0 | 84 | 91% | Too wet |
| June | 27.9 | 82 | 94% | Too wet |
| July | 27.2 | 81 | 79% | Too wet |
| August | 27.2 | 81 | 65% | Too wet |
| September | 27.6 | 82 | 90% | Too wet |
| October | 28.2 | 83 | 88% | Too wet |
| November | 29.4 | 85 | 44% | Go |
| December | 30.2 | 86 | 15% | 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.
January is the driest month, with rain on 15% of days and daytime highs near 30.4°C (87°F). June is the wettest, at 94%. Temperature barely moves all year — just 3.8°C between the warmest and coolest months — so rainfall, not heat, decides when to go. The record rules out too wet in Mar–Oct.