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Imperatriz Weather by Month
Average temperatures, rainfall and humidity for Imperatriz, Brazil, month by month, built from OpenWeather’s historical records. Use it to see what a typical Imperatriz month looks like before you travel — then check the live Imperatriz forecast for the days ahead.
Warmest month
September
38°C average high
Coolest month
July
21°C average low
Wettest month
March
217 mm of rain
Driest month
July
4 mm of rain
Average temperature and rainfall in Imperatriz by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 31°C | 22°C | 19°C / 38°C | 132 mm | 86% | 6 km/h |
| February | 31°C | 22°C | 19°C / 37°C | 133 mm | 87% | 6 km/h |
| March | 31°C | 22°C | 20°C / 36°C | 217 mm | 88% | 6 km/h |
| April | 32°C | 22°C | 14°C / 36°C | 142 mm | 86% | 6 km/h |
| May | 33°C | 22°C | 18°C / 37°C | 45 mm | 79% | 6 km/h |
| June | 34°C | 21°C | 18°C / 38°C | 8 mm | 68% | 8 km/h |
| July | 36°C | 21°C | 17°C / 39°C | 4 mm | 56% | 8 km/h |
| August | 37°C | 22°C | 18°C / 42°C | 5 mm | 50% | 9 km/h |
| September | 38°C | 23°C | 19°C / 44°C | 17 mm | 53% | 9 km/h |
| October | 37°C | 24°C | 20°C / 44°C | 41 mm | 60% | 8 km/h |
| November | 35°C | 23°C | 20°C / 43°C | 77 mm | 72% | 7 km/h |
| December | 33°C | 23°C | 19°C / 40°C | 84 mm | 79% | 6 km/h |
Best time to visit Imperatriz
The most comfortable time to visit Imperatriz is generally May to July, balancing mild daytime temperatures against the driest stretch of the year. Temperatures stay fairly even all year and rain concentrates around March, totalling about 905 mm a year.
Travellers who prefer heat should aim for September, when highs average 38°C. March is the month to avoid if rain would spoil your plans — it averages 217 mm, roughly 50× the rainfall of the driest month (July).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Imperatriz forecast for what is happening now.
Weather across Brazil right now
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