Live Weather & Forecast
Weather in Riachão
Maranhão, Brazil · Real-time conditions & 3-day outlook
30°C
Feels like 33°C
86°F / Feels 92°F
Light rain shower
Riachão, Maranhão
🌞 Daytime
Updated: 2026-04-19 14:15
Humidity
61%
Wind
7.6 km/h W
Wind Gust
13 km/h
Pressure
1008 mb
Visibility
10 km
UV Index
7
(High)
Precipitation
0.65 mm
Cloud Cover
86%
Dew Point
21.6°C
Wind Degree
260°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
107.9 μg/m³
NO₂
2.3 μg/m³
O₃
59 μg/m³
SO₂
1 μg/m³
PM 2.5
3.6 μg/m³
PM 10
3.7 μg/m³
Today's Hourly Forecast
24-hour breakdown for Riachão, Maranhão
12 AM
26°
Clear
1 AM
25°
Clear
2 AM
24°
Patchy rain nearby
3 AM
24°
Clear
4 AM
24°
Clear
5 AM
23°
Patchy rain nearby
6 AM
22°
Patchy rain nearby
7 AM
23°
Patchy rain nearby
8 AM
25°
Patchy rain nearby
9 AM
26°
Patchy rain nearby
10 AM
28°
Patchy rain nearby
11 AM
29°
Patchy rain nearby
12 PM
29°
Patchy rain nearby
1 PM
30°
Light rain shower
2 PM
30°
Light rain shower
3 PM
29°
Light rain shower
4 PM
29°
Light rain shower
5 PM
28°
Light rain shower
6 PM
26°
Partly Cloudy
7 PM
25°
Patchy rain nearby
8 PM
24°
Light rain shower
9 PM
24°
Light rain shower
10 PM
24°
Patchy light drizzle
11 PM
23°
Light rain shower
3-Day Forecast
Daily overview for Riachão, Maranhão
Today
Moderate rain
30°
/
22°
🌧️ 98% chance of rain
💧 Avg. humidity: 81%
💨 Max wind: 8.6 km/h
🌧️ Total precip: 14.83 mm
☀️ UV Index: 11
🌅 Sunrise: 06:09 AM
🌇 Sunset: 06:04 PM
🌙 Waxing Crescent
🌑 Moon: 3% lit
Mon, Apr 20
Moderate rain
30°
/
22°
🌧️ 88% chance of rain
💧 Avg. humidity: 84%
💨 Max wind: 8.6 km/h
🌧️ Total precip: 10.09 mm
☀️ UV Index: 11.5
🌅 Sunrise: 06:09 AM
🌇 Sunset: 06:03 PM
🌙 Waxing Crescent
🌑 Moon: 9% lit
Tue, Apr 21
Moderate rain
26°
/
22°
🌧️ 86% chance of rain
💧 Avg. humidity: 91%
💨 Max wind: 7.6 km/h
🌧️ Total precip: 15.83 mm
☀️ UV Index: 12.3
🌅 Sunrise: 06:09 AM
🌇 Sunset: 06:03 PM
🌙 Waxing Crescent
🌑 Moon: 17% lit
Best Time to Visit Riachão
Plan your trip to Riachão, Brazil around the most favorable weather conditions.
Peak Season
November – April
Dry season — low humidity, clear skies, comfortable temperatures.
Shoulder Season
May, October
Fewer crowds, moderate prices, mild weather.
Off Season
June – September
Wet/monsoon season; heavier rainfall possible.
Frequently Asked Questions
What is the current weather in Riachão?
Current conditions in Riachão: Light rain shower, temperature 30°C, humidity 61%.
What is the best time to visit Riachão?
The best time to visit Riachão is typically November – April. Dry season — low humidity, clear skies, comfortable temperatures.
What is the climate like in Riachão?
Riachão is located at approximately -7.4° latitude. It has a tropical or subtropical climate with wet and dry seasons.
Does it rain a lot in Riachão?
The wettest period in Riachão is typically during June – September. Wet/monsoon season; heavier rainfall possible.
What should I pack for a trip to Riachão?
For visits to Riachão during November – April: light clothing and sun protection. For June – September: layers and a waterproof jacket are recommended.
What are the public holidays in Riachão in 2026?
View the 2026 public holidays for Riachão on our Holidays page.
What are the GPS coordinates used for the weather forecast in Riachão?
The weather forecast for Riachão uses coordinates -7.3643, -46.6226.