Montevideo
September
Weather in Montevideo for September 2025
Your guide to Montevideo weather in September - trends and predictions
In general, the average temperature in Montevideo at the beginning of September is 15.3 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 18.1 °C by the end of September.
Montevideo experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 106.5 mm.
Temperatures
Rain 🌧️
20
Dry days
10
Rainy days
0
Snow days
17°/10°
Temperatures
21 km/h
Avg max wind
74 %
Avg humidity
Montevideo in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  16° | 2  17° | 3 14° | 4  14° | 5  13° | 6 16° | 7  17° |
| 8  16° | 9 19° | 10 20° | 11  18° | 12 14° | 13 16° | 14 14° |
| 15 19° | 16  21° | 17 19° | 18 18° | 19 17° | 20 18° | 21  21° |
| 22 20° | 23 17° | 24 17° | 25 16° | 26  15° | 27 17° | 28 21° |
| 29 22° | 30 19° |
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Temperatures trend during September in Montevideo
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Partly cloudy | 16° /9° | 0.6 mm | 5 | |
| 2 Sept. | Heavy rain | 17° /9° | 13.1 mm | 5 | |
| 3 Sept. | Heavy rain | 14° /9° | 42.6 mm | 4 | |
| 4 Sept. | Patchy rain possible | 14° /9° | 0.3 mm | 4 | |
| 5 Sept. | Cloudy | 13° /6° | 0 mm | 4 | |
| 6 Sept. | Partly cloudy | 16° /5° | 0 mm | 5 | |
| 7 Sept. | Moderate rain | 17° /11° | 7.2 mm | 5 | |
| 8 Sept. | Overcast | 16° /9° | 0.1 mm | 4 | |
| 9 Sept. | Overcast | 19° /9° | 0 mm | 5 | |
| 10 Sept. | Partly cloudy | 20° /11° | 0.4 mm | 6 | |
| 11 Sept. | Moderate or heavy rain with thunder | 18° /10° | 19.2 mm | 5 | |
| 12 Sept. | Partly cloudy | 14° /8° | 0 mm | 4 | |
| 13 Sept. | Partly cloudy | 16° /7° | 0 mm | 5 | |
| 14 Sept. | Overcast | 14° /6° | 0 mm | 5 | |
| 15 Sept. | Partly cloudy | 19° /6° | 0 mm | 6 | |
| 16 Sept. | Sunny | 21° /10° | 0 mm | 7 | |
| 17 Sept. | Light rain shower | 19° /10° | 4.8 mm | 5 | |
| 18 Sept. | Patchy rain possible | 18° /10° | 1.2 mm | 5 | |
| 19 Sept. | Partly cloudy | 17° /12° | 3.4 mm | 5 | |
| 20 Sept. | Patchy rain possible | 18° /12° | 0.4 mm | 5 | |
| 21 Sept. | Fog | 21° /12° | 0.2 mm | 6 | |
| 22 Sept. | Patchy rain possible | 20° /12° | 1.6 mm | 5 | |
| 23 Sept. | Patchy rain possible | 17° /11° | 0.5 mm | 5 | |
| 24 Sept. | Mist | 17° /11° | 0 mm | 5 | |
| 25 Sept. | Partly cloudy | 16° /10° | 0 mm | 5 | |
| 26 Sept. | Patchy light rain | 15° /11° | 2.6 mm | 4 | |
| 27 Sept. | Patchy rain possible | 17° /9° | 0.2 mm | 5 | |
| 28 Sept. | Cloudy | 21° /9° | 0 mm | 6 | |
| 29 Sept. | Patchy rain possible | 22° /12° | 0.1 mm | 6 | |
| 30 Sept. | Partly cloudy | 19° /12° | 8 mm | 6 | |
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Important Notice
Our weather forecast for Montevideo in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Montevideo forecast closer to your planned date for the most up-to-date weather information.
Montevideo in September - FAQ
What are the expected maximum and minimum temperatures in Montevideo during September?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Montevideo during September?
Significant rainfall exceeding 106.5 mm is expected in Montevideo during September, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Montevideo during September?
The average wind speed in Montevideo during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Montevideo
Explore the daily rainfall trends and prepare for Montevideos September weather 💧
UV exposure in Montevideo during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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