Climate and monthly weather forecastRianápolis, Brazil
Climate and monthly weather forecast
Weather in January
January, like December, in Rianápolis, Brazil, is another warm summer month, with an average temperature varying between 27°C (80.6°F) and 18.9°C (66°F). January proves to be the coldest month, recording an average maximum temperature of 27°C (80.6°F) and a minimum temperature of 18.9°C (66°F). The heat index for January is appraised at a tropical 30°C (86°F). Weather in January »Weather in February
February, the last month of the summer in Rianápolis, is also a moderately hot month, with an average temperature varying between 27.3°C (81.1°F) and 18.8°C (65.8°F). As Rianápolis, Brazil, steps into February, the average high-temperature holds at a still warm 27.3°C (81.1°F), hinting at a minor fluctuation from the prior month. Weather in February »Weather in March
March, the first month of the autumn in Rianápolis, is also a moderately hot month, with an average temperature varying between 27.3°C (81.1°F) and 19°C (66.2°F). Rianápolis's March weather showcases an average high temperature of a still warm 27.3°C (81.1°F), equivalent to that of February. Weather in March »Weather in April
April, like March, in Rianápolis, Brazil, is a moderately hot autumn month, with temperature in the range of an average high of 27.4°C (81.3°F) and an average low of 18.4°C (65.1°F). The shift into April records an average high-temperature of a still moderately hot 27.4°C (81.3°F), subtly varied from March's 27.3°C (81.1°F). Weather in April »Weather in May
May, the last month of the autumn in Rianápolis, is also a moderately hot month, with an average temperature ranging between min 17.2°C (63°F) and max 27.2°C (81°F). Transitioning into May, Rianápolis records an average high-temperature of a still moderately hot 27.2°C (81°F), almost identical to April's 27.4°C (81.3°F). Weather in May »Weather in June
June, the first month of the winter in Rianápolis, is also a moderately hot month, with an average temperature varying between 27.3°C (81.1°F) and 16.4°C (61.5°F). Rianápolis, Brazil, measures an average high-temperature of a still moderately hot 27.3°C (81.1°F) in June, nearly consistent with the preceding month. Weather in June »Weather in July
July, like June, in Rianápolis, Brazil, is another warm winter month, with an average temperature ranging between max 28.9°C (84°F) and min 16.1°C (61°F). July records an average high-temperature of a still warm 28.9°C (84°F), indicating a minor variation from the preceding month. Weather in July »Weather in August
August, the last month of the winter in Rianápolis, is a tropical month, with an average temperature varying between 31.7°C (89.1°F) and 17.8°C (64°F). Stepping into August, Rianápolis records an average high-temperature of a hot 31.7°C (89.1°F), almost consistent with July. Weather in August »Weather in September
The first month of the spring, September, is still a tropical month in Rianápolis, Brazil, with temperature in the range of an average high of 33.5°C (92.3°F) and an average low of 20.4°C (68.7°F). Rianápolis's warmest month, September, generally records average temperatures ranging from a high of 33.5°C (92.3°F) to a low of 20.4°C (68.7°F). The heat index value during September is appraised at a very hot 35°C (95°F). Weather in September »Weather in October
October, the same as September, in Rianápolis, Brazil, is another hot spring month, with an average temperature ranging between max 31.5°C (88.7°F) and min 21°C (69.8°F). Rianápolis records an average high-temperature of a still hot 31.5°C (88.7°F) in October, closely mirroring the climate of the previous month. Weather in October »Weather in November
November, the last month of the spring in Rianápolis, is also a moderately hot month, with an average temperature varying between 27.7°C (81.9°F) and 19.9°C (67.8°F). November signifies a gentle decline in Rianápolis's average high-temperature, easing from a hot 31.5°C (88.7°F) in October to a warm 27.7°C (81.9°F). Weather in November »Weather in December
December, the first month of the summer in Rianápolis, is still a warm month, with an average temperature fluctuating between 19.3°C (66.7°F) and 27.2°C (81°F). In December, Rianápolis's weather conditions record an average high-temperature of a still warm 27.2°C (81°F), demonstrating little divergence from the preceding month. Weather in December »Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Rianápolis, Brazil, notes the coldest temperatures in January, with a average high of 27°C (80.6°F) and a low of 18.9°C (66°F).
In Rianápolis, during the entire year, the rain falls for 219.6 days and collects up to 1537mm (60.51") of precipitation.
February and December, with an average maximum UV index of 5, are months with the lowest UV index.
The most humid month in Rianápolis, Brazil, is March, with an average relative humidity of 88%.
June has the shortest days of the year, with an average of 11h and 12min of daylight.
The month with the least rainfall in Rianápolis is July, when the rain falls for 1.8 days and typically collects 1mm (0.04") of precipitation.
July and August, with an average of 9.9h of sunshine, are months with the most sunshine.
The months with the highest UV index are August and September, with an average maximum UV index of 7.
September, with its average high-temperature of 33.5°C (92.3°F) and an average low-temperature of 20.4°C (68.7°F), holds the record as the warmest month.
September is the least humid month in Rianápolis, with an average relative humidity of 40%.
The month with the most rainfall in Rianápolis is November, when the rain falls for 28.6 days and typically aggregates up to 266mm (10.47") of precipitation.
December has the longest days of the year, with an average of 13h and 0min of daylight.
Rianápolis does not utilize Daylight Saving Time (DST). -03 timezone is used throughout the entire year.
The month with the least sunshine is December, with an average of 6.9h of sunshine.
Average temperature
Rianápolis, Brazil
The warmest month (with the highest average high temperature) is September (33.5°C).
The month with the lowest average high temperature is January (27°C).
The month with the highest average low temperature is October (21°C).
The coldest month (with the lowest average low temperature) is July (16.1°C).
Average pressure
Rianápolis, Brazil
- Average pressure in January:
1012.2mbar - Average pressure in February:
1012.2mbar - Average pressure in March:
1012.4mbar - Average pressure in April:
1013.5mbar - Average pressure in May:
1015.1mbar - Average pressure in June:
1016.8mbar
- Average pressure in July:
1017mbar - Average pressure in August:
1015.7mbar - Average pressure in September:
1013.5mbar - Average pressure in October:
1011.5mbar - Average pressure in November:
1011mbar - Average pressure in December:
1011.4mbar
The month with the highest atmospheric pressure is July (1017mbar).
The month with the lowest atmospheric pressure is November (1011mbar).
Average wind speed
Rianápolis, Brazil
- Average wind speed in January:
5.6km/h - Average wind speed in February:
5.3km/h - Average wind speed in March:
5.2km/h - Average wind speed in April:
5.7km/h - Average wind speed in May:
6.4km/h - Average wind speed in June:
7.3km/h
- Average wind speed in July:
8.2km/h - Average wind speed in August:
8.3km/h - Average wind speed in September:
8.1km/h - Average wind speed in October:
7km/h - Average wind speed in November:
5.9km/h - Average wind speed in December:
5.9km/h
The windiest month (with the highest average wind speed) is August (8.3km/h).
The calmest month (with the lowest average wind speed) is March (5.2km/h).
Average humidity
Rianápolis, Brazil
The month with the highest relative humidity is March (88%).
The month with the lowest relative humidity is September (40%).
Average rainfall
Rianápolis, Brazil
- Average rainfall in January:
229mm - Average rainfall in February:
224mm - Average rainfall in March:
215mm - Average rainfall in April:
137mm - Average rainfall in May:
39mm - Average rainfall in June:
10mm
The wettest month (with the highest rainfall) is November (266mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days
Rianápolis, Brazil
- Average rainfall days in January:
29.3 days - Average rainfall days in February:
26.7 days - Average rainfall days in March:
29.2 days - Average rainfall days in April:
24.1 days - Average rainfall days in May:
14.1 days - Average rainfall days in June:
5.8 days
- Average rainfall days in July:
1.8 days - Average rainfall days in August:
1.3 days - Average rainfall days in September:
7.9 days - Average rainfall days in October:
21.5 days - Average rainfall days in November:
28.6 days - Average rainfall days in December:
29.3 days
The months with the highest number of rainy days are January and December (29.3 days).
The month with the least rainy days is August (1.3 days).
Average daylight / Average sunshine
Rianápolis, Brazil
- Average daylight in January:
12h and 54min - Average daylight in February:
12h and 36min - Average daylight in March:
12h and 12min - Average daylight in April:
11h and 42min - Average daylight in May:
11h and 24min - Average daylight in June:
11h and 12min
- Average daylight in July:
11h and 18min - Average daylight in August:
11h and 36min - Average daylight in September:
12h and 0min - Average daylight in October:
12h and 30min - Average daylight in November:
12h and 48min - Average daylight in December:
13h and 0min
The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 12min).
- Average sunshine in January:
7h and 0min - Average sunshine in February:
7h and 36min - Average sunshine in March:
7h and 42min - Average sunshine in April:
8h and 24min - Average sunshine in May:
9h and 24min - Average sunshine in June:
9h and 42min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
9h and 54min - Average sunshine in September:
9h and 42min - Average sunshine in October:
9h and 0min - Average sunshine in November:
7h and 30min - Average sunshine in December:
6h and 54min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days
Rianápolis, Brazil
- Average sunshine days in January:
1.1 days - Average sunshine days in February:
0.7 days - Average sunshine days in March:
1.6 days - Average sunshine days in April:
4.9 days - Average sunshine days in May:
14.9 days - Average sunshine days in June:
22.2 days
- Average sunshine days in July:
28.8 days - Average sunshine days in August:
29 days - Average sunshine days in September:
21.3 days - Average sunshine days in October:
9 days - Average sunshine days in November:
0.7 days - Average sunshine days in December:
1.5 days
The month with the most sunshine days is August (29 days).
The months with the least sunshine days are February and November (0.7 days).
Average UV index
Rianápolis, Brazil
The months with the highest UV index are August and September (UV index 7).
The months with the lowest UV index are February and December (UV index 5).
Average cloud cover
Rianápolis, Brazil
The month with the most cloud cover is December (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility
Rianápolis, Brazil
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February and March (7km).
