Treinta y Tres in September
7.4out of 10
Possible, with caveats
Mild: highs around 19°C. Frequent rain: about 9 rainy days.
19°CAvg high
9°CAvg low
9Rainy days (99 mm)
11:48 hDaylight
06:38Sunrise · 18:26 Sunset
Why this score
- Mild: highs around 19°C
- Frequent rain: about 9 rainy days
What to wear and pack
- Layers you can add or remove
- Rain jacket or compact umbrella
How reliable is the forecast?
Rainfall in September is fairly consistent from year to year (2.3 days). 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 | 29°C | 18°C | 83 mm | 8 | – | – | 7.9 |
| February | 28°C | 18°C | 97 mm | 9 | – | – | 7.8 |
| March | 27°C | 16°C | 82 mm | 9 | – | – | 7.9 |
| April | 23°C | 14°C | 108 mm | 9 | – | – | 7.8 |
| May | 20°C | 10°C | 97 mm | 7 | – | – | 7.7 |
| June | 17°C | 8°C | 91 mm | 8 | – | – | 7.2 |
| July | 16°C | 7°C | 88 mm | 8 | – | – | 7.0 |
| August | 18°C | 8°C | 103 mm | 8 | – | – | 7.3 |
| September | 19°C | 9°C | 99 mm | 9 | – | – | 7.4 |
| October | 22°C | 12°C | 112 mm | 10 | – | – | 7.6 |
| November | 25°C | 14°C | 92 mm | 8 | – | – | 8.0 |
| December | 28°C | 16°C | 88 mm | 8 | – | – | 7.9 |
Frequently asked questions
How hot is Treinta y Tres in September?
Daytime highs average 19°C and nights about 9°C.
When is the best time to visit Treinta y Tres?
The best months are November, January, March, December.