Climate and monthly weather forecastSanta Isabel do Rio Negro, Brazil
Climate and monthly weather forecast
Weather in January
January, the same as December, in Santa Isabel do Rio Negro, Brazil, is another tropical summer month, with an average temperature fluctuating between 22.7°C (72.9°F) and 31.5°C (88.7°F). As Santa Isabel do Rio Negro welcomes January, the average high-temperature stabilizes at a still hot 31.5°C (88.7°F), showing little deviation from December's 31.9°C (89.4°F). Weather in January »Weather in February
February, the last month of the summer in Santa Isabel do Rio Negro, is also a hot month, with an average temperature ranging between min 22.6°C (72.7°F) and max 31.3°C (88.3°F). Santa Isabel do Rio Negro marks the start of February with an average high-temperature of a still tropical 31.3°C (88.3°F), hinting at a slight fluctuation from January's 31.5°C (88.7°F). Weather in February »Weather in March
March, the first month of the autumn in Santa Isabel do Rio Negro, is still a hot month, with an average temperature varying between 30.7°C (87.3°F) and 22.6°C (72.7°F). The commencement of March introduces an average high-temperature of a still tropical 30.7°C (87.3°F), closely mirroring the preceding month. Weather in March »Weather in April
April, like March, in Santa Isabel do Rio Negro, Brazil, is a moderately hot autumn month, with an average temperature fluctuating between 22.6°C (72.7°F) and 29.8°C (85.6°F). As April takes its course, Santa Isabel do Rio Negro's average high-temperature registers at a warm 29.8°C (85.6°F), closely aligning with the preceding month. Weather in April »Weather in May
May, the last month of the autumn in Santa Isabel do Rio Negro, is another warm month, with an average temperature ranging between min 22.1°C (71.8°F) and max 29.7°C (85.5°F). May is the coldest month of the year, registering average temperatures as high as 29.7°C (85.5°F) and as low as 22.1°C (71.8°F). May's average heat index is estimated at an extremely hot 40°C (104°F). Weather in May »Weather in June
The first month of the winter, June, is still a warm month in Santa Isabel do Rio Negro, Brazil, with an average temperature ranging between min 21.9°C (71.4°F) and max 29.9°C (85.8°F). June's presence marks an average high-temperature of a still warm 29.9°C (85.8°F), subtly varied from May's 29.7°C (85.5°F). Weather in June »Weather in July
July is a hot winter month in Santa Isabel do Rio Negro, Brazil, with an average temperature fluctuating between 21.3°C (70.3°F) and 30.2°C (86.4°F). The arrival of July marks a slight shift to an average high-temperature of a hot 30.2°C (86.4°F) from June's 29.9°C (85.8°F). Weather in July »Weather in August
August, the last month of the winter in Santa Isabel do Rio Negro, is another tropical month, with an average temperature ranging between max 32.8°C (91°F) and min 21.9°C (71.4°F). The advent of August denotes an average high-temperature of a still tropical 32.8°C (91°F), subtly different from July's 30.2°C (86.4°F). Weather in August »Weather in September
September, the first month of the spring in Santa Isabel do Rio Negro, is still a hot month, with an average temperature ranging between max 33.5°C (92.3°F) and min 22.4°C (72.3°F). Santa Isabel do Rio Negro records the warmest temperatures in September, averaging a high of 33.5°C (92.3°F) and a low of 22.4°C (72.3°F). In September, the average heat index is estimated at a burning hot 48°C (118.4°F). Weather in September »Weather in October
October, the same as September, in Santa Isabel do Rio Negro, Brazil, is another hot spring month, with temperature in the range of an average high of 33.4°C (92.1°F) and an average low of 23.3°C (73.9°F). The arrival of October marks a slight shift to an average high-temperature of a still tropical 33.4°C (92.1°F) from September's 33.5°C (92.3°F). Weather in October »Weather in November
The last month of the spring, November, is also a hot month in Santa Isabel do Rio Negro, Brazil, with an average temperature fluctuating between 32.5°C (90.5°F) and 23.1°C (73.6°F). With the start of November, Santa Isabel do Rio Negro measures an average high-temperature of a still tropical 32.5°C (90.5°F), not significantly differing from October's 33.4°C (92.1°F). Weather in November »Weather in December
December, the first month of the summer in Santa Isabel do Rio Negro, is still a tropical month, with an average temperature fluctuating between 22.5°C (72.5°F) and 31.9°C (89.4°F). Welcoming December, Santa Isabel do Rio Negro notes an average high-temperature of a still hot 31.9°C (89.4°F), nearly consistent with November's 32.5°C (90.5°F). Weather in December »Updated: Jun 9, 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
Throughout the year, there are 308 rainfall days, and 1836mm (72.28") of precipitation is accumulated.
The months with the lowest UV index are January through June, with an average maximum UV index of 6.
May, with an average high of 29.7°C (85.5°F) and a low of 22.1°C (71.8°F), signifies the coldest month of the year.
With an average relative humidity of 91%, May is the most humid month.
May is the month with the most rainfall in Santa Isabel do Rio Negro. Rain falls for 29.5 days and accumulates 242mm (9.53") of precipitation.
The month with the least sunshine is May, with an average of 5.1h of sunshine.
June has the shortest days of the year, with an average of 12h and 6min of daylight.
The months with the highest UV index are July through December, with an average maximum UV index of 7.
With its average high temperature of 33.5°C (92.3°F) and a low of 22.4°C (72.3°F), September is regarded as the warmest month.
The least humid month is September, with an average relative humidity of 76%.
September is the month with the least rainfall. Rain falls for 21.9 days and accumulates 75mm (2.95") of precipitation.
September has the most sunshine of the year, with an average of 8.4h of sunshine.
December has the longest days of the year, with an average of 12h and 6min of daylight.
Santa Isabel do Rio Negro does not observe Daylight Saving Time (DST). -04 timezone is used over the entire year.
Average temperature
Santa Isabel do Rio Negro, Brazil
The warmest month (with the highest average high temperature) is September (33.5°C).
The month with the lowest average high temperature is May (29.7°C).
The month with the highest average low temperature is October (23.3°C).
The coldest month (with the lowest average low temperature) is July (21.3°C).
Average pressure
Santa Isabel do Rio Negro, Brazil
- Average pressure in January:
1009.9mbar - Average pressure in February:
1009.7mbar - Average pressure in March:
1010.1mbar - Average pressure in April:
1010.9mbar - Average pressure in May:
1011.8mbar - Average pressure in June:
1012.8mbar
- Average pressure in July:
1013mbar - Average pressure in August:
1012.1mbar - Average pressure in September:
1011mbar - Average pressure in October:
1009.4mbar - Average pressure in November:
1008.4mbar - Average pressure in December:
1009.2mbar
The month with the highest atmospheric pressure is July (1013mbar).
The month with the lowest atmospheric pressure is November (1008.4mbar).
Average wind speed
Santa Isabel do Rio Negro, Brazil
- Average wind speed in January:
4.1km/h - Average wind speed in February:
4.3km/h - Average wind speed in March:
4.1km/h - Average wind speed in April:
3.8km/h - Average wind speed in May:
3.5km/h - Average wind speed in June:
3.5km/h
- Average wind speed in July:
3.6km/h - Average wind speed in August:
3.8km/h - Average wind speed in September:
3.9km/h - Average wind speed in October:
3.8km/h - Average wind speed in November:
3.7km/h - Average wind speed in December:
4km/h
The windiest month (with the highest average wind speed) is February (4.3km/h).
The calmest months (with the lowest average wind speed) are May and June (3.5km/h).
Average humidity
Santa Isabel do Rio Negro, Brazil
The month with the highest relative humidity is May (91%).
The month with the lowest relative humidity is September (76%).
Average rainfall
Santa Isabel do Rio Negro, Brazil
- Average rainfall in January:
146mm - Average rainfall in February:
135mm - Average rainfall in March:
199mm - Average rainfall in April:
237mm - Average rainfall in May:
242mm - Average rainfall in June:
155mm
The wettest month (with the highest rainfall) is May (242mm).
The driest month (with the least rainfall) is September (75mm).
Average rainfall days
Santa Isabel do Rio Negro, Brazil
- Average rainfall days in January:
25.8 days - Average rainfall days in February:
22.6 days - Average rainfall days in March:
27.5 days - Average rainfall days in April:
28.2 days - Average rainfall days in May:
29.5 days - Average rainfall days in June:
28.8 days
- Average rainfall days in July:
27.1 days - Average rainfall days in August:
22.5 days - Average rainfall days in September:
21.9 days - Average rainfall days in October:
22.5 days - Average rainfall days in November:
24.2 days - Average rainfall days in December:
27.4 days
The month with the highest number of rainy days is May (29.5 days).
The month with the least rainy days is September (21.9 days).
Average daylight / Average sunshine
Santa Isabel do Rio Negro, Brazil
- Average daylight in January:
12h and 6min - Average daylight in February:
12h and 6min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 6min - Average daylight in May:
12h and 6min - Average daylight in June:
12h and 6min
- Average daylight in July:
12h and 6min - Average daylight in August:
12h and 6min - Average daylight in September:
12h and 6min - Average daylight in October:
12h and 6min - Average daylight in November:
12h and 6min - Average daylight in December:
12h and 6min
The month with the longest days is December (Average daylight: 12h and 6min).
The month with the shortest days is June (Average daylight: 12h and 6min).
- Average sunshine in January:
7h and 6min - Average sunshine in February:
6h and 36min - Average sunshine in March:
5h and 48min - Average sunshine in April:
5h and 12min - Average sunshine in May:
5h and 6min - Average sunshine in June:
6h and 0min
- Average sunshine in July:
6h and 42min - Average sunshine in August:
8h and 0min - Average sunshine in September:
8h and 24min - Average sunshine in October:
7h and 54min - Average sunshine in November:
7h and 30min - Average sunshine in December:
7h and 18min
The month with the most sunshine is September (Average sunshine: 8h and 24min).
The month with the least sunshine is May (Average sunshine: 5h and 6min).
Average sunshine days
Santa Isabel do Rio Negro, Brazil
- Average sunshine days in January:
4.8 days - Average sunshine days in February:
4.8 days - Average sunshine days in March:
3.3 days - Average sunshine days in April:
1.3 days - Average sunshine days in May:
1.1 days - Average sunshine days in June:
1.1 days
- Average sunshine days in July:
2.4 days - Average sunshine days in August:
7.3 days - Average sunshine days in September:
6.9 days - Average sunshine days in October:
6.9 days - Average sunshine days in November:
4.5 days - Average sunshine days in December:
2.6 days
The month with the most sunshine days is August (7.3 days).
The months with the least sunshine days are May and June (1.1 days).
Average UV index
Santa Isabel do Rio Negro, Brazil
The months with the highest UV index are July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May and June (UV index 6).
Average cloud cover
Santa Isabel do Rio Negro, Brazil
The month with the most cloud cover is May (Cloud cover 72).
The month with the least cloud cover is September (Cloud cover 42).
Average visibility
Santa Isabel do Rio Negro, Brazil
The months with the highest visibility are August, September and October (8km).
The month with the lowest visibility is May (5km).
