Uruguay
Uruguay in September
Where it is warm, dry and good for swimming in Uruguay in September — compared across the country’s main destinations.
Quick answers
- Where is it warmest in Uruguay in September?
- Bella Unión is the warmest of the 16 destinations compared, with highs of 23°C (73°F) in September; Punta del Este is the coolest at 17°C (62°F).
- Can you swim in the sea in Uruguay in September?
- Hardly: even the warmest water, at Colonia del Sacramento (15°C (59°F)), stays below 21 °C.
Warmest
23°
Bella Unión
Coolest
17°
Punta del Este
Driest
76 mm
Montevideo
Warmest sea
15°
Colonia del Sacramento
Across Uruguay, September highs run from 17°C (62°F) (Punta del Este) to 23°C (73°F) (Bella Unión). On average it is 1.5 °C (3 °F) warmer than August. Rain is frequent in most destinations. Best bets this month: Salto, Colonia del Sacramento, and Bella Unión.
Best places in Uruguay in September
86 
Salto
Salto · Uruguay
22° / 10° 96 mm Sep
74
Colonia del Sacramento
Colonia · Uruguay
19° / 9° 77 mm Sep
85
Bella Unión
Artigas · Uruguay
23° / 11° 89 mm Sep
82
Artigas
Artigas · Uruguay
22° / 10° 117 mm Sep
80
Mercedes
Soriano · Uruguay
20° / 8° 87 mm Sep
66
Montevideo
Montevideo · Uruguay
17° / 8° 76 mm Sep
80
Fray Bentos
Río Negro Department · Uruguay
21° / 8° 81 mm Sep
81
Paysandú
Paysandú · Uruguay
21° / 9° 80 mm Sep
Weather in September by city
| Place | Day | Night | Rain | Sea | Score |
|---|---|---|---|---|---|
| Salto | 22° | 10° | 96 mm | — | 86 |
| Bella Unión | 23° | 11° | 89 mm | — | 85 |
| Artigas | 22° | 10° | 117 mm | — | 82 |
| Paysandú | 21° | 9° | 80 mm | — | 81 |
| Mercedes | 20° | 8° | 87 mm | — | 80 |
| Fray Bentos | 21° | 8° | 81 mm | — | 80 |
| Tacuarembó | 21° | 9° | 115 mm | — | 77 |
| Durazno | 20° | 8° | 100 mm | — | 76 |
| Rivera | 21° | 10° | 128 mm | — | 75 |
| Colonia del Sacramento | 19° | 9° | 77 mm | 15° | 74 |
| Montevideo | 17° | 8° | 76 mm | 13° | 66 |
| Minas | 18° | 8° | 111 mm | — | 64 |
| Chui | 18° | 9° | 98 mm | — | 62 |
| Piriápolis | 17° | 9° | 94 mm | 13° | 62 |
| Maldonado | 17° | 9° | 95 mm | — | 61 |
| Punta del Este | 17° | 9° | 93 mm | — | 60 |
Frequently asked questions
What is the weather like in Uruguay in September?
Average daytime highs range from 17° in Punta del Este to 23° in Bella Unión.
Can you swim in Uruguay in September?
The sea is cool: the warmest water is around Colonia del Sacramento at about 15°.