Uruguay weather

Our guide to the weather in Uruguay during September

19

Average high

4

UV Index

152mm

Monthly rainfall

79%

Humidity

We've looked at the most up-to-date weather data for Uruguay, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Uruguay weather in September.

What's the temperature like in Uruguay during September?

The temperature reaches around 19℃ during the daytime in September, falling away to 9℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.

Does it rain in Uruguay during September?

On average, there will be 5 rainy days during the month, amounting to 152.1mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in Uruguay during September?

You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during September. With moderate air temperatures, any breeze will feel cool.

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Weather in Uruguay

Our month-by-month guide to the weather and climate in Uruguay

31.7

Uruguay weather in

January
30.0

Uruguay weather in

February
26.9

Uruguay weather in

March
23.5

Uruguay weather in

April
18.8

Uruguay weather in

May
15.6

Uruguay weather in

June
14.9

Uruguay weather in

July
17.3

Uruguay weather in

August
19.1

Uruguay weather in

September
22.1

Uruguay weather in

October
26.4

Uruguay weather in

November
30.2

Uruguay weather in

December