Brazil
São Luís sees feels-like daytime highs peak around 40.4°C in May and nighttime lows bottom out near 31.9°C in August. April is the wettest month (~342 mm), while October is the driest (~10 mm). For sunshine, August leads with about 66% clear skies.
Based on mild feels-like temperatures and low rain chances, the most comfortable months are October, September, and November — expect around 32.3–39.4°C with roughly 5% chance of rain on a given day in October.
| Month | Low / High °C | Rain % | Rainfall | Clear skies | Wind |
|---|---|---|---|---|---|
| January | 32.3° / 39.7° | 53% | 167 mm | 29% | 9.4 kph |
| February | 32.5° / 39.9° | 67% | 243 mm | 24% | 8.7 kph |
| March | 32.4° / 38.8° | 82% | 327 mm | 19% | 8.1 kph |
| April | 32.7° / 40.2° | 84% | 342 mm | 16% | 7.3 kph |
| May | 32.8° / 40.4° | 72% | 250 mm | 25% | 7.1 kph |
| June | 32.5° / 40° | 52% | 128 mm | 48% | 7.5 kph |
| July | 32.2° / 39.7° | 32% | 66 mm | 62% | 8 kph |
| August | 31.9° / 40.2° | 12% | 20 mm | 66% | 9.3 kph |
| September☀ | 32.4° / 39.7° | 6% | 13 mm | 60% | 10.7 kph |
| October☀ | 32.3° / 39.4° | 5% | 10 mm | 46% | 11.5 kph |
| November☀ | 32.6° / 39.9° | 6% | 10 mm | 38% | 11.3 kph |
| December | 32.8° / 40.1° | 23% | 57 mm | 35% | 10.5 kph |
Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).
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