União

União, Piauí, Brazil

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Current Weather

37°

Partly Cloudy

Feels Like: 39°

Min: 23°

Max: 38°

The next few hours will be partly cloudy, with today reaching 38°C and dropping to 23°C. The coming days will be partly cloudy

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Hourly Forecast

37° 37° 38° 37° 35° 34° 32° 31° 29° 28° 27° 26° 26° 25° 24° 24° 24° 23° 26° 28° 31° 32° 34° 35°
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Today
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Daylight Hours

05:50

Sunrise

17:47

Sunset

11 hours 56 minutes of sunlight today

Moon

Waning Crescent

02:38

Moonrise

14:49

Moonset

Daily Forecast

Today

23°
38°

Tuesday

23°
37°

Wednesday

24°
38°

Thursday

23°
38°

Friday

24°
38°

Saturday

24°
37°

Sunday

24°
38°

Monday

24°
37°

Tuesday

24°
38°

Wednesday

25°
38°

Air Quality Data Available

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UV Index

Minimize sun exposure
8 Very High
Low Extreme

Humidity

30% Very Dry
Low High

Weather in União today, September 07, 2026

União keeps a mostly sunny profile on September 07, 2026, aside from a cloudier spell around 13:00. Outside that window, bright conditions should still lead the day.

Expect highs of 38°C and cooler readings close to 23°C. Relative humidity sits between 25% and 74%, reaching its peak around 23:00. Airflow remains manageable, reaching about 3.8 km/h around 21:00.

Expect a more open afternoon, with limited cloud around 40% by 13:00. Residual damp risk should be lower than earlier. Horizontal visibility holds close to 16.1 km. Expect sunrise at 05:50, sunset at 17:47, and 11 hours 56 minutes of sunlight today overall.

Taken together, settled sunshine in União on September 07, 2026 makes outdoor timing easier, with highs near 38°C.

Frequently asked questions about weather in União

How warm does it get in União?

The warmest month in União is May, with average high temperatures of -31°C. The average temperature during this period is around -35°C.

How cold does it get in União?

The coldest month in União is January, with average low temperatures of -43°C. The average temperature during this period is around -42°C.

What is the wettest time of year in União?

The wettest month in União is September, with an average of 11mm of precipitation.

What is the driest time of year in União?

The driest month in União is January, with an average of 0mm of precipitation.

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Metric (°C, km/h)