Rio Branco in May
6.8out of 10
Possible, with caveats
Warm and comfortable: highs around 30°C. Very wet: about 15 rainy days.
30°CAvg high
21°CAvg low
15Rainy days (76 mm)
11:33 hDaylight
05:41Sunrise · 17:14 Sunset
Why this score
- Warm and comfortable: highs around 30°C
- Very wet: about 15 rainy days
- Rain varies a lot between years (±4.8 days)
What to wear and pack
- T-shirts and light layers
- 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 (±4.8 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 | 30°C | 23°C | 255 mm | 28 | – | – | 5.8 |
| February | 30°C | 23°C | 243 mm | 25 | – | – | 5.8 |
| March | 30°C | 23°C | 249 mm | 27 | – | – | 5.8 |
| April | 30°C | 22°C | 160 mm | 23 | – | – | 5.7 |
| May | 30°C | 21°C | 76 mm | 15 | – | – | 6.8 |
| June | 30°C | 20°C | 30 mm | 7 | – | – | 7.8 |
| July | 32°C | 19°C | 21 mm | 4 | – | – | 7.8 |
| August | 33°C | 20°C | 38 mm | 6 | – | – | 7.1 |
| September | 33°C | 22°C | 75 mm | 11 | – | – | 6.3 |
| October | 33°C | 23°C | 137 mm | 19 | – | – | 5.2 |
| November | 31°C | 23°C | 198 mm | 23 | – | – | 5.5 |
| December | 30°C | 23°C | 246 mm | 26 | – | – | 5.7 |
Frequently asked questions
How hot is Rio Branco in May?
Daytime highs average 30°C and nights about 21°C.
When is the best time to visit Rio Branco?
The best months are June, July.