Riachão weather
At 7:30 PM local time it was mostly clear and 27°C (81°F). Light rain for 3 of the next 24 hours (under 1 mm/h, 0.5 mm total) — cloudy, but fine to be out. Best months for weather: May–Aug. Riachão sits 384 m (1,260 ft) above sea level, which keeps it cooler than the coast. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Riachão, Maranhão, Brazil.
Current conditions
- Clouds
- 45%
- Chance of rain
- 32%
- Rain
- 0.0 mm/h
Hourly Forecast
Light rain for 3 of the next 24 hours (under 1 mm/h, 0.5 mm total) — cloudy, but fine to be out
Daily Forecast
Best Time to Visit
Peak season May–AugOff season Oct–Mar
About Riachão weather
Is it raining in Riachão right now?
No. It’s mostly clear and 27° right now. Light rain for 3 of the next 24 hours (under 1 mm/h, 0.5 mm total) — cloudy, but fine to be out.
What’s the weather like in Riachão this week?
Over the next 7 days, expect highs of 31–36° and lows of 22–26°. Rain is likely on 6 of 7 days (Saturday, Monday, Tuesday, Wednesday, Thursday, Friday). The driest day looks like Sunday.
Has it been raining in Riachão lately?
In the past 7 days, Riachão had 5 rainy days and 12.0 mm of rain in total.
What should I pack for Riachão?
For the coming week, bring an umbrella or rain jacket, light, breathable clothes and sunscreen.
Riachão weather by month
When is the best time to visit Riachão?
Based on weather alone, the best time to visit Riachão is May–Aug, according to NASA's 2001–2025 climate averages. Oct–Mar tends to be the least pleasant. Average highs run from 29°C (85°F) in February to 37°C (98°F) in September.
What is the rainiest month in Riachão?
January is the wettest month, with about 232 mm (9.1 in) of rain on average. July is the driest, with about 5 mm (0.2 in).
What is the hottest month in Riachão?
September is the warmest, with average highs of 37°C (98°F) and lows of 24°C (75°F). February is the coolest, with highs of 29°C (85°F) and lows of 22°C (71°F).
Does Riachão have a rainy season?
Yes. Dec–Apr is the rainy season (150 mm or more a month), while Jun–Sep is usually dry (under 60 mm).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months