World Resorts Brazil Rio Branco Weather

Rio Branco weather in May

Weather in Rio Branco: May

Average day temperature: 83.8°F
Average night temperature: 71.1°F
Number of sunny days: 8 days
Day length: 11.6 - 11.8 hours
Number of rainy days: 1 day
Precipitation totals: 1.2 in.

Air temperature in May, °F

Show year:
2025
2024
2023

The highest day temperature during May of 2025 was 89°F. At the same time the lowest night temperature was 59°F. Daily and nightly averages during May were 85.8°F and 70.9°F.

Sunny, partly cloudy and cloudy days

Mostly all days in May are partly cloudy but sunny or cloudy days are also possible.

Precipitation total in May, in.

Precipitation total value in Rio Branco in May is 1.2 in. Other months of the year show relatively similar values.

Wind speed in May, mph

The average wind speed value in May is 3.1 mph It makes May one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 6.2.

Best time for vacation in Rio Branco

Sunniest months:
August 23 days
July 23 days
September 17 days
Warmest months:
September 98.0 °F
August 95.0 °F
October 94.1 °F
Coldest months:
February 82.4 °F
March 82.6 °F
April 83.3 °F
Rainiest months:
February 9 days
March 9 days
January 7 days
Windiest months:
August 4.2 mph
September 4.1 mph
October 3.9 mph

Rio Branco on a weather map

Rio Branco
+72°F
SE 2 mph
Feels like: +72°F
Precip.: 100%
Places in Brazil:
Name
°F
+72°F
+72°F
+77°F
+66°F
+77°F
+66°F
+77°F
+63°F
+68°F
+66°F
+64°F
+75°F
+66°F
24 Hours Forecast
Rio Branco
Local time: 01:55
December 05, friday
0300
72°F
SE
2 mph
0600
72°F
NE
2 mph
0900
72°F
SE
2 mph
1200
75°F
S
2 mph
1500
77°F
S
3 mph
1800
79°F
S
2 mph
2100
75°F
S
4 mph
December 06, saturday
0000
73°F
S
4 mph
Units of measurement: °C / °F