União weather
At 5:45 PM local time it was clear and 34°C (93°F). Little to no rain in the next 24 hours. Best months for weather: Jun–Aug. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for União, Piauí, Brazil.
Current conditions
- Clouds
- 8%
- Chance of rain
- 1%
- Rain
- 0.0 mm/h
Hourly Forecast
Little to no rain in the next 24 hours
Daily Forecast
Best Time to Visit
Peak season Jun–AugOff season Jan–Apr
About União weather
Is it raining in União right now?
No. It’s clear and 34° right now. Little to no rain in the next 24 hours.
What’s the weather like in União this week?
Over the next 7 days, expect highs of 38–39° and lows of 24–25°. Little rain is expected. The driest day looks like Saturday.
Has it been raining in União lately?
Barely. The past 7 days were mostly dry, with 2.3 mm of rain in total.
What should I pack for União?
For the coming week, bring light, breathable clothes and sunscreen.
União weather by month
When is the best time to visit União?
Based on weather alone, the best time to visit União is Jun–Aug, according to NASA's 2001–2025 climate averages. Jan–Apr tends to be the least pleasant. Average highs run from 29°C (83°F) in April to 37°C (98°F) in October.
What is the rainiest month in União?
March is the wettest month, with about 290 mm (11.4 in) of rain on average. September is the driest, with about 9 mm (0.4 in).
What is the hottest month in União?
October is the warmest, with average highs of 37°C (98°F) and lows of 24°C (76°F). April is the coolest, with highs of 29°C (83°F) and lows of 23°C (73°F).
Does União have a rainy season?
Yes. Jan–Apr is the rainy season (150 mm or more a month), while Jun–Nov 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