União in May
5.9out of 10
Possible, with caveats
Hot: daytime highs around 32°C. Very wet: about 15 rainy days.
32°CAvg high
23°CAvg low
15Rainy days (144 mm)
11:47 hDaylight
05:54Sunrise · 17:41 Sunset
Why this score
- Hot: daytime highs around 32°C
- Very wet: about 15 rainy days
- Rain varies a lot between years (±6.4 days)
What to wear and pack
- Light, breathable clothing
- Shorts or a light skirt
- Rain jacket or compact umbrella
- Sunscreen, sunglasses and a hat
How reliable is the forecast?
Rain in May varies a lot between years (±6.4 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 33°C | 24°C | 228 mm | 22 | – | – | 5.1 |
| February | 32°C | 23°C | 298 mm | 22 | – | – | 5.3 |
| March | 31°C | 23°C | 363 mm | 27 | – | – | 5.4 |
| April | 31°C | 23°C | 326 mm | 25 | – | – | 5.5 |
| May | 32°C | 23°C | 144 mm | 15 | – | – | 5.9 |
| June | 33°C | 23°C | 24 mm | 5 | – | – | 7.4 |
| July | 34°C | 23°C | 12 mm | 2 | – | – | 7.6 |
| August | 35°C | 23°C | 2 mm | 1 | – | – | 7.3 |
| September | 37°C | 24°C | 3 mm | 1 | – | – | 6.9 |
| October | 37°C | 25°C | 10 mm | 1 | – | – | 6.6 |
| November | 36°C | 25°C | 35 mm | 4 | – | – | 6.4 |
| December | 35°C | 25°C | 83 mm | 10 | – | – | 6.0 |
Frequently asked questions
How hot is União in May?
Daytime highs average 32°C and nights about 23°C.
When is the best time to visit União?
The best months are July, June, August.