Montevideo weather in September
September is a fair month to visit Montevideo: highs of 16°C (60°F) and about 96 mm (3.8 in) of rain on average. Nights average 11°C (51°F) and cloud cover 55% (NASA POWER, 2001–2025 averages). It is the 6th driest month of the year and the 4th coolest. Compared with August, it is warmer and about as wet; October brings highs of 19°C (65°F) and 103 mm (4.1 in) of rain.
Is September a good time to visit Montevideo?
fair month Weather score 60/100.
September is a fair month in Montevideo. The weather is usually best in Nov–Apr.
Does it rain a lot in Montevideo in September?
Some rain is normal: about 96 mm (3.8 in) falls in an average September. It is the 6th driest month of the year.
How warm is Montevideo in September?
Days average 16°C (60°F) and nights 11°C (51°F).
Montevideo weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 26°C (80°F) | 20°C (68°F) | 102 mm | 44% | best |
| February | 26°C (78°F) | 20°C (68°F) | 106 mm | 49% | best |
| March | 24°C (75°F) | 19°C (65°F) | 118 mm | 45% | best |
| April | 20°C (69°F) | 16°C (60°F) | 114 mm | 48% | best |
| May | 17°C (62°F) | 13°C (55°F) | 84 mm | 56% | fair |
| June | 14°C (57°F) | 10°C (49°F) | 98 mm | 57% | least pleasant |
| July | 12°C (54°F) | 8°C (47°F) | 92 mm | 59% | least pleasant |
| August | 14°C (57°F) | 9°C (48°F) | 89 mm | 57% | least pleasant |
| September | 16°C (60°F) | 11°C (51°F) | 96 mm | 55% | fair |
| October | 19°C (65°F) | 13°C (56°F) | 103 mm | 53% | fair |
| November | 22°C (71°F) | 16°C (60°F) | 96 mm | 47% | best |
| December | 25°C (76°F) | 18°C (65°F) | 86 mm | 44% | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months