São Mateus do Maranhão in December
5.6out of 10
Possible, with caveats
Hot: daytime highs around 34°C. Frequent rain: about 14 rainy days.
34°CAvg high
25°CAvg low
14Rainy days (113 mm)
12:14 hDaylight
05:47Sunrise · 18:01 Sunset
Why this score
- Hot: daytime highs around 34°C
- Frequent rain: about 14 rainy days
- Rain varies a lot between years (±5.0 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 December varies a lot between years (±5.0 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 | 32°C | 24°C | 242 mm | 25 | – | – | 5.3 |
| February | 31°C | 23°C | 265 mm | 25 | – | – | 5.4 |
| March | 31°C | 23°C | 312 mm | 29 | – | – | 5.5 |
| April | 31°C | 23°C | 277 mm | 27 | – | – | 5.5 |
| May | 31°C | 24°C | 134 mm | 19 | – | – | 5.6 |
| June | 32°C | 23°C | 37 mm | 8 | – | – | 7.2 |
| July | 33°C | 23°C | 18 mm | 4 | – | – | 7.5 |
| August | 34°C | 23°C | 5 mm | 1 | – | – | 7.4 |
| September | 35°C | 24°C | 6 mm | 1 | – | – | 7.1 |
| October | 36°C | 25°C | 13 mm | 3 | – | – | 6.8 |
| November | 35°C | 25°C | 44 mm | 7 | – | – | 6.5 |
| December | 34°C | 25°C | 113 mm | 14 | – | – | 5.6 |
Frequently asked questions
How hot is São Mateus do Maranhão in December?
Daytime highs average 34°C and nights about 25°C.
When is the best time to visit São Mateus do Maranhão?
The best months are July, August, June, September.