Montevideo in September
6.7out of 10
Possible, with caveats
Cool: highs only around 15°C. Some rain: about 8 rainy days.
15°CAvg high
12°CAvg low
8Rainy days (92 mm)
11:48 hDaylight
06:45Sunrise · 18:33 Sunset
Why this score
- Cool: highs only around 15°C
- Some rain: about 8 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 | 24°C | 21°C | 67 mm | 6 | – | – | 8.3 |
| February | 24°C | 21°C | 92 mm | 8 | – | – | 8.0 |
| March | 22°C | 20°C | 97 mm | 8 | – | – | 8.0 |
| April | 20°C | 17°C | 107 mm | 9 | – | – | 7.4 |
| May | 16°C | 14°C | 87 mm | 8 | – | – | 7.1 |
| June | 14°C | 11°C | 90 mm | 9 | – | – | 6.5 |
| July | 12°C | 10°C | 96 mm | 9 | – | – | 6.3 |
| August | 13°C | 10°C | 97 mm | 8 | – | – | 6.5 |
| September | 15°C | 12°C | 92 mm | 8 | – | – | 6.7 |
| October | 17°C | 14°C | 111 mm | 9 | – | – | 7.0 |
| November | 20°C | 17°C | 101 mm | 8 | – | – | 7.6 |
| December | 22°C | 19°C | 73 mm | 7 | – | – | 8.2 |
Frequently asked questions
How hot is Montevideo in September?
Daytime highs average 15°C and nights about 12°C.
When is the best time to visit Montevideo?
The best months are January, December, February, March.