Santa Helena, Brazil Climate by Month
Santa Helena, Maranhão, Brazil
Hot all year, with a rainy season from February to June.
Santa Helena is hot all year, with a rainy season from February to June. Afternoon highs range from 87°F (31°C) in March to 91°F (33°C) in October, and July nights average 72°F (22°C). Of the 92 in (2343 mm) of rain in a typical year, 78% falls from February to June. The air is humid, averaging 79% relative humidity.
- Warmest month
- 91°F(33°C)
- Average high, October
- Coldest nights
- 72°F(22°C)
- Average low, July
- Rain per year
- 92 in(2343 mm)
- Wettest: April
- Humidity
- 79%
- Sunniest: September
Best and worst months in Santa Helena
Best for weatherSeptember to November are the best time for weather in Santa Helena: highs near 91°F (33°C) and about 0.7 in (18 mm) of rain a month.
Least pleasantApril is the least pleasant month: it's the wettest, with 19 in (494 mm) of rain.
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in September.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Santa Helena weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 89°F(32°C) | 73°F(23°C) | 7.1 in(180 mm) | 80% | 4.3 |
| FebFebruary | 87°F(31°C) | 73°F(23°C) | 13 in(329 mm) | 82% | 3.9 |
| MarMarch | 87°F(31°C) | 73°F(23°C) | 18 in(450 mm) | 85% | 3.8 |
| AprApril | 87°F(31°C) | 73°F(23°C) | 19 in(494 mm) | 85% | 3.9 |
| MayMay | 88°F(31°C) | 73°F(23°C) | 13 in(328 mm) | 84% | 4.3 |
| JunJune | 87°F(31°C) | 73°F(23°C) | 9.2 in(234 mm) | 83% | 4.5 |
| JulJuly | 87°F(31°C) | 72°F(22°C) | 6.8 in(173 mm) | 81% | 4.8 |
| AugAugust | 89°F(32°C) | 72°F(22°C) | 1.9 in(49 mm) | 79% | 5.3 |
| SepSeptemberBest | 90°F(32°C) | 72°F(22°C) | 0.7 in(18 mm) | 74% | 5.4 |
| OctOctoberBest | 91°F(33°C) | 73°F(23°C) | 0.6 in(15 mm) | 72% | 5.1 |
| NovNovemberBest | 91°F(33°C) | 73°F(23°C) | 0.8 in(21 mm) | 72% | 4.6 |
| DecDecember | 91°F(33°C) | 74°F(23°C) | 2.0 in(52 mm) | 74% | 4.6 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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