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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.

  • The climate of Montevideo in September is notably wet, with an average of 11 rainy days.

  • Is September a good time to visit Montevideo? check out the best time to travel to Montevideo page.

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Average dry days
19
Dry days
Average rainy days
11
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/9°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
75 %
Avg humidity

Montevideo in September average weather

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Temperatures trend during September in Montevideo

See the weather trend as well as the moving average line
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September weather day by day

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Date Weather Temperatures Rain UV More
1 Sept. Partly cloudy
Partly cloudy
16° /9° 0.6 mm 5
2 Sept. Heavy rain
Heavy rain
17° /9° 13.1 mm 5
3 Sept. Heavy rain
Heavy rain
14° /9° 42.6 mm 4
4 Sept. Patchy rain possible
Patchy rain possible
14° /9° 0.3 mm 4
5 Sept. Cloudy
Cloudy
13° /6° 0 mm 4
6 Sept. Partly cloudy
Partly cloudy
16° /5° 0 mm 5
7 Sept. Moderate rain
Moderate rain
17° /11° 7.2 mm 5
8 Sept. Overcast
Overcast
16° /9° 0.1 mm 4
9 Sept. Overcast
Overcast
19° /9° 0 mm 5
10 Sept. Partly cloudy
Partly cloudy
20° /11° 0.4 mm 6
11 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
18° /10° 19.2 mm 5
12 Sept. Partly cloudy
Partly cloudy
14° /8° 0 mm 4
13 Sept. Partly cloudy
Partly cloudy
16° /7° 0 mm 5
14 Sept. Overcast
Overcast
14° /6° 0 mm 5
15 Sept. Partly cloudy
Partly cloudy
19° /6° 0 mm 6
16 Sept. Sunny
Sunny
21° /10° 0 mm 7
17 Sept. Light rain shower
Light rain shower
19° /10° 4.8 mm 5
18 Sept. Patchy rain possible
Patchy rain possible
18° /10° 1.2 mm 5
19 Sept. Partly cloudy
Partly cloudy
17° /12° 3.4 mm 5
20 Sept. Patchy rain possible
Patchy rain possible
18° /12° 0.4 mm 5
21 Sept. Fog
Fog
21° /12° 0.2 mm 6
22 Sept. Patchy rain possible
Patchy rain possible
20° /12° 1.6 mm 5
23 Sept. Patchy rain possible
Patchy rain possible
17° /11° 0.5 mm 5
24 Sept. Mist
Mist
17° /11° 0 mm 5
25 Sept. Partly cloudy
Partly cloudy
16° /10° 0 mm 5
26 Sept. Patchy light rain
Patchy light rain
15° /11° 2.6 mm 4
27 Sept. Patchy rain possible
Patchy rain possible
17° /9° 0.2 mm 5
28 Sept. Cloudy
Cloudy
21° /9° 0 mm 6
29 Sept. Patchy rain possible
Patchy rain possible
22° /12° 0.1 mm 6
30 Sept. Partly cloudy
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 16° and cooler nights around 9°. 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 176.8 mm is expected in Montevideo during September, occurring over more than 11 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 23 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Montevideo in September?

As you prepare for your trip to Montevideo in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Montevideo, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Warm Clothing: Sweaters, hoodies, long pants
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
  • Accessories
    • Scarves: To protect you from the cold wind
    • Gloves/Mittens: Essential for cold weather
    • Warm Hats: Warm hats for insulation in cold weather
    • Umbrellas/Raincoats: For rainy days

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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Location coordinates Where is Montevideo?

Get accurate weather forecasts for Montevideo, located at latitude -34.903 and longitude -56.188. Stay updated with localized weather information tailored for Montevideo.

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