Dominican Republic has two good windows: May and Oct–Mar. They sit either side of the season the climate record rules out, which is why the shoulder months matter here. The recommended window is Dec–Apr.
Hurricane risk Aug–Oct
| Month | High °C | High °F | Rainy days | Verdict |
|---|---|---|---|---|
| January | 29.3 | 85 | 21% | Go |
| February | 29.8 | 86 | 17% | Go |
| March | 30.4 | 87 | 18% | Go |
| April | 31.1 | 88 | 24% | Fair |
| May | 30.9 | 88 | 33% | Go |
| June | 31.1 | 88 | 28% | Fair |
| July | 31.5 | 89 | 29% | Fair |
| August | 31.6 | 89 | 34% | Fair |
| September | 31.4 | 89 | 34% | Fair |
| October | 30.9 | 88 | 35% | Go |
| November | 30.2 | 86 | 35% | Go |
| December | 29.5 | 85 | 23% | 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.
February is the driest month, with rain on 17% of days and daytime highs near 29.8°C (86°F). October is the wettest, at 35%. Temperature barely moves all year — just 2.3°C between the warmest and coolest months — so rainfall, not heat, decides when to go.