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Rio Grande do Sul (Rio Grande)
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Weather in Rio Grande do Sul for May 2027

Your guide to Rio Grande do Sul weather in May - trends and predictions

    Temperatures

  • In general, the average temperature in Rio Grande do Sul at the beginning of May is 22 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.6 °C by the end of May.

    • Rain 🌧️

  • Rio Grande do Sul experiences moderate rainfall in May, with an average of 7 rainy days and a total precipitation of 123.4 mm.

    • More

  • Is May a good time to visit Rio Grande do Sul? check out the best time to travel to Rio Grande do Sul page.

Average dry days
24
Dry days
Average rainy days
7
Rainy days
Average snowy days
0
Snow days
Average temperatures
19°/13°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Rio Grande do Sul Weather May

Move between months or click on a day
April
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Moderate rain
20°
2
Partly cloudy
20°
3
Sunny
19°
4
Sunny
22°
5
Light rain
24°
6
Cloudy
23°
7
Moderate rain
26°
8
Heavy rain
20°
9
Moderate rain
17°
10
Overcast
18°
11
Patchy rain possible
16°
12
Patchy rain possible
19°
13
Sunny
19°
14
Partly cloudy
19°
15
Partly cloudy
20°
16
Overcast
21°
17
Overcast
20°
18
Patchy rain possible
20°
19
Overcast
17°
20
Patchy rain possible
17°
21
Overcast
16°
22
Cloudy
15°
23
Cloudy
17°
24
Patchy rain possible
19°
25
Thundery outbreaks possible
19°
26
Light rain
19°
27
Moderate rain
20°
28
Moderate rain
17°
29
Patchy rain possible
15°
30
Partly cloudy
16°
31
Sunny
17°

Temperatures trend during May in Rio Grande do Sul

See the weather trend as well as the moving average line

May weather in Rio Grande do Sul day by day

Click on a date for more information
April June
Date Weather Temperatures Rain UV More
1 May Moderate rain
Moderate rain
 20° /16° 23.4 mm 4
2 May Partly cloudy
Partly cloudy
 20° /15° 0.2 mm 5
3 May Sunny
Sunny
 19° /13° 0 mm 5
4 May Sunny
Sunny
 22° /15° 0 mm 5
5 May Light rain
Light rain
 24° /17° 5.7 mm 5
6 May Cloudy
Cloudy
 23° /18° 0.3 mm 4
7 May Moderate rain
Moderate rain
 26° /19° 15.8 mm 5
8 May Heavy rain
Heavy rain
 20° /15° 30.9 mm 4
9 May Moderate rain
Moderate rain
 17° /13° 12.4 mm 4
10 May Overcast
Overcast
 18° /11° 0.1 mm 5
11 May Patchy rain possible
Patchy rain possible
 16° /10° 0.1 mm 4
12 May Patchy rain possible
Patchy rain possible
 19° /12° 0.2 mm 4
13 May Sunny
Sunny
 19° /14° 0 mm 5
14 May Partly cloudy
Partly cloudy
 19° /14° 0 mm 5
15 May Partly cloudy
Partly cloudy
 20° /13° 0 mm 5
16 May Overcast
Overcast
 21° /13° 0 mm 4
17 May Overcast
Overcast
 20° /16° 0 mm 3
18 May Patchy rain possible
Patchy rain possible
 20° /13° 0.4 mm 4
19 May Overcast
Overcast
 17° /11° 0 mm 4
20 May Patchy rain possible
Patchy rain possible
 17° /11° 2.1 mm 4
21 May Overcast
Overcast
 16° /11° 0 mm 5
22 May Cloudy
Cloudy
 15° /11° 0.2 mm 3
23 May Cloudy
Cloudy
 17° /13° 0.4 mm 3
24 May Patchy rain possible
Patchy rain possible
 19° /14° 0.2 mm 4
25 May Thundery outbreaks possible
Thundery outbreaks possible
 19° /15° 0.3 mm 4
26 May Light rain
Light rain
 19° /16° 2.9 mm 4
27 May Moderate rain
Moderate rain
 20° /16° 8.1 mm 4
28 May Moderate rain
Moderate rain
 17° /12° 18.5 mm 4
29 May Patchy rain possible
Patchy rain possible
 15° /11° 1.2 mm 3
30 May Partly cloudy
Partly cloudy
 16° /12° 0.2 mm 3
31 May Sunny
Sunny
 17° /11° 0 mm 4
Next
Important Notice
Our weather forecast for Rio Grande do Sul in May 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 Rio Grande do Sul forecast closer to your planned date for the most up-to-date weather information.
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Rio Grande do Sul in May - FAQ

What are the expected maximum and minimum temperatures in Rio Grande do Sul during May?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Rio Grande do Sul during May?
Significant rainfall exceeding 123.4 mm is expected in Rio Grande do Sul during May, occurring over more than 7 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Rio Grande do Sul during May?
The average wind speed in Rio Grande do Sul during May is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in Rio Grande do Sul

Explore the daily rainfall trends and prepare for Rio Grande do Suls May weather 💧
Typically, Rio Grande do Sul has 7 rainy days in May with a total of 123.4 mm of rainfall.

UV exposure in Rio Grande do Sul during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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