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Rio Grande do Sul (Rio Grande)
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Weather in Rio Grande do Sul for May 2026

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

    Temperatures

  • Until now, May 2026 in Rio Grande do Sul is slightly cooler than the historical average by -1.8 °C.

  • Expect cooler weather in the next days in Rio Grande do Sul with the forecast suggesting a temperature of 16.6 °C, lower than the historical average.

  • 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 17.7 °C by the end of May.

    • Rain 🌧️

  • Rio Grande do Sul experiences moderate rainfall in May, with an average of 10 rainy days and a total precipitation of 150.9 mm.

Average dry days
21
Dry days
Average rainy days
10
Rainy days
Average snowy days
0
Snow days
Average temperatures
19°/13°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Rio Grande do Sul Weather May

Move between months or click on a day
April
June
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Partly cloudy
20°
2
Partly cloudy
20°
3
Sunny
19°
4
Sunny
22°
5
Partly cloudy
24°
6
Cloudy
23°
7
Partly cloudy
26°
8
Moderate or heavy rain shower
20°
9
Moderate or heavy rain shower
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
Patchy rain possible
18°
27
Sunny
17°
28
Sunny
17°
29
Patchy rain possible
18°
30
Patchy rain possible
18°
31
Partly cloudy
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 Partly cloudy
Partly cloudy
 20° /15° 23.4 mm 4
2 May Partly cloudy
Partly cloudy
 20° /14° 0.2 mm 5
3 May Sunny
Sunny
 19° /12° 0 mm 5
4 May Sunny
Sunny
 22° /15° 0 mm 5
5 May Partly cloudy
Partly cloudy
 24° /16° 5.7 mm 5
6 May Cloudy
Cloudy
 23° /18° 0.3 mm 4
7 May Partly cloudy
Partly cloudy
 26° /19° 15.8 mm 5
8 May Moderate or heavy rain shower
Moderate or heavy rain shower
 20° /15° 30.9 mm 4
9 May Moderate or heavy rain shower
Moderate or heavy rain shower
 17° /12° 12.4 mm 4
10 May Overcast
Overcast
 18° /10° 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° /13° 0 mm 5
14 May Partly cloudy
Partly cloudy
 19° /14° 0 mm 5
15 May Partly cloudy
Partly cloudy
 20° /12° 0 mm 5
16 May Overcast
Overcast
 21° /13° 0 mm 4
17 May Overcast
Overcast
 20° /15° 0 mm 3
18 May Patchy rain possible
Patchy rain possible
 20° /13° 0.4 mm 4
19 May Overcast
Overcast
 17° /10° 0 mm 4
20 May Patchy rain possible
Patchy rain possible
 17° /10° 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° /13° 0.2 mm 4
25 May Thundery outbreaks possible
Thundery outbreaks possible
 19° /15° 0.3 mm 4
26 May Patchy rain possible
Patchy rain possible
 18° /15° 3.8 mm 2.1
27 May Sunny
Sunny
 17° /14° 0 mm 3.7
28 May Sunny
Sunny
 17° /13° 0 mm 3.8
29 May Patchy rain possible
Patchy rain possible
 18° /14° 0.3 mm 3.2
30 May Patchy rain possible
Patchy rain possible
 18° /15° 0.7 mm 0.6
31 May Partly cloudy
Partly cloudy
 17° /14° 0.1 mm 6
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 150.9 mm is expected in Rio Grande do Sul during May, occurring over more than 10 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 22 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 10 rainy days in May with a total of 150.9 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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Location coordinates Where is Rio Grande do Sul?

Get accurate weather forecasts for Rio Grande do Sul, located at latitude -32.035 and longitude -52.099. Stay updated with localized weather information tailored for Rio Grande do Sul.

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