The Uruguay resorts with the warmest sea water temperature in September are Colonia del Sacramento, Montevideo and Ciudad de la Costa.
Below you can see a list of all popular Uruguay resorts and information about sea water temperature in September for the last two years.
| Resort Name | September 2025 | September 2024 | September 2023 |
|---|---|---|---|
| Colonia del Sacramento | 63.1°F | 61.4°F | 60.9°F |
| Montevideo | 59.7°F | 58.6°F | 57.3°F |
| Ciudad de la Costa | 59.1°F | 57.5°F | 56.7°F |
| Piriapolis | 57.7°F | 55.8°F | 56.1°F |
| Punta del Diablo | 57.5°F | 56.2°F | 56.8°F |
| Punta del Este | 56.8°F | 55.0°F | 56.0°F |
| Maldonado | 56.8°F | 55.0°F | 56.0°F |
| Faro de Jose Ignacio | 56.4°F | 54.6°F | 56.1°F |
| Cabo Polonio | 56.3°F | 55.0°F | 56.4°F |
| La Paloma | 56.2°F | 55.0°F | 56.0°F |
Please see following sea water temperature averages charts for the warmest Uruguay resorts in September.
You can also get the same information for the every other month of the year when the average sea water temperature is greater then 70°F.
Sea Water
Temperature
Temperature
| Colonia del Sacramento |
Sea Water
Temperature
Temperature
| Montevideo |
Sea Water
Temperature
Temperature
| Ciudad de la Costa |
Uruguay Resorts:
NAME
F°
| Artigas |  |
+66 |
| Cabo Polonio | |
+68 |
| Ciudad de la Costa |  |
+74 |
| Colonia del Sacramento | |
+74 |
| Faro de Jose Ignacio | |
+74 |
| La Paloma | |
+68 |
| Maldonado | |
+74 |
| Montevideo | |
+70 |
| Piriapolis | |
+74 |
| Punta del Diablo | |
+66 |
| Punta del Este | |
+74 |
| Rivera | |
+62 |
| Salto | |
+68 |
| Treinta y Tres | |
+64 |
