Climate and monthly weather forecastPorto Velho, Brazil
Climate and monthly weather forecast
Weather in January
January, the same as December, is a moderately hot summer month in Porto Velho, Brazil, with an average temperature ranging between min 22.5°C (72.5°F) and max 29.6°C (85.3°F). The introduction of January notes a subtle temperature variation to a moderately hot 29.6°C (85.3°F) from December's 30.5°C (86.9°F). Weather in January »Weather in February
February, the last month of the summer in Porto Velho, is another warm month, with an average temperature ranging between max 29.3°C (84.7°F) and min 22.3°C (72.1°F). February, on average, is the coldest month, registering a high temperature of 29.3°C (84.7°F) and a low of 22.3°C (72.1°F). During February, the heat index is estimated at a torrid 39°C (102.2°F). Weather in February »Weather in March
March, the first month of the autumn in Porto Velho, is a tropical month, with an average temperature ranging between max 30°C (86°F) and min 22.3°C (72.1°F). Porto Velho's average high-temperature marks a hot 30°C (86°F) with the advent of March, closely mirroring that of the preceding month. Weather in March »Weather in April
April, the same as March, in Porto Velho, Brazil, is a hot autumn month, with temperature in the range of an average low of 22.1°C (71.8°F) and an average high of 30.7°C (87.3°F). The transition from March to April brings an average high-temperature of a still hot 30.7°C (87.3°F), barely different from March's 30°C (86°F). Weather in April »Weather in May
May, the last month of the autumn in Porto Velho, is also a hot month, with an average temperature varying between 31.2°C (88.2°F) and 21.8°C (71.2°F). Porto Velho indicates an average high-temperature of a still tropical 31.2°C (88.2°F) in May, showing minor variation from April's 30.7°C (87.3°F). Weather in May »Weather in June
The first month of the winter, June, is also a hot month in Porto Velho, Brazil, with an average temperature varying between 32.6°C (90.7°F) and 20.8°C (69.4°F). With the onset of June, Porto Velho's average high-temperature clocks in at a still hot 32.6°C (90.7°F), showing a minor fluctuation from the previous month. Weather in June »Weather in July
July, like June, is another tropical winter month in Porto Velho, Brazil, with an average temperature varying between 20.3°C (68.5°F) and 33.8°C (92.8°F). In July, Porto Velho's weather conditions record an average high-temperature of a still tropical 33.8°C (92.8°F), demonstrating little divergence from the preceding month. Weather in July »Weather in August
The last month of the winter, August, is a fiery hot month in Porto Velho, Brazil, with an average temperature ranging between max 36.4°C (97.5°F) and min 21.7°C (71.1°F). With the onset of August, the average high-temperature registers at a torrid 36.4°C (97.5°F), subtly different from July's 33.8°C (92.8°F). Weather in August »Weather in September
The first month of the spring, September, is also a sweltering month in Porto Velho, Brazil, with an average temperature varying between 36.6°C (97.9°F) and 23.1°C (73.6°F). September, with its high-temperature average of 36.6°C (97.9°F) and a low-temperature average of 23.1°C (73.6°F), is the warmest month. The average heat index in September is estimated at a life-threatening hot 50°C (122°F). Weather in September »Weather in October
October, like September, is another tropical spring month in Porto Velho, Brazil, with an average temperature varying between 23.5°C (74.3°F) and 34.9°C (94.8°F). October begins with an average high-temperature of a hot 34.9°C (94.8°F), reflecting close similarity to the preceding month. Weather in October »Weather in November
The last month of the spring, November, is another hot month in Porto Velho, Brazil, with an average temperature fluctuating between 32.3°C (90.1°F) and 23.1°C (73.6°F). On the advent of November, Porto Velho's average high-temperature exhibits a minor adjustment to a still tropical 32.3°C (90.1°F) from October's 34.9°C (94.8°F). Weather in November »Weather in December
December, the first month of the summer in Porto Velho, is still a hot month, with an average temperature ranging between min 22.7°C (72.9°F) and max 30.5°C (86.9°F). Porto Velho experiences a transition to a still hot 30.5°C (86.9°F) in average high-temperatures with the arrival of December, not greatly differing from November's 32.3°C (90.1°F). 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
The month with the most rainfall in Porto Velho, Brazil, is January, when the rain falls for 30.3 days and typically aggregates up to 242mm (9.53") of precipitation.
In Porto Velho, Brazil, during the entire year, the rain falls for 251.1 days and collects up to 1471mm (57.91") of precipitation.
The months with the lowest UV index are January through April and December, with an average maximum UV index of 6.
Porto Velho reaches its average lowest temperatures in February, measuring 29.3°C (84.7°F) at the peak and 22.3°C (72.1°F) at the lowest.
February is the most humid month in Porto Velho, with an average relative humidity of 92%.
The month with the least sunshine in Porto Velho is February, with an average of 4.8h of sunshine.
The months with the highest UV index are May through November, with an average maximum UV index of 7.
June has the shortest days of the year in Porto Velho, Brazil, with an average of 11h and 36min of daylight.
The month with the least rainfall in Porto Velho is July, when the rain falls for 5.8 days and typically collects 8mm (0.31") of precipitation.
August is the least humid month in Porto Velho, with an average relative humidity of 53%.
The month of September, characterized by an average high of 36.6°C (97.9°F) and a low of 23.1°C (73.6°F), is recognized as the warmest in Porto Velho.
With an average of 10.3h of sunshine, October has the most sunshine of the year in Porto Velho.
The month with the longest days in Porto Velho is December, with an average of 12h and 36min of daylight.
Porto Velho, Brazil, does not utilize Daylight Saving Time (DST). -04 timezone is used over the entire year.
Average temperature
Porto Velho, Brazil
The warmest month (with the highest average high temperature) is September (36.6°C).
The month with the lowest average high temperature is February (29.3°C).
The month with the highest average low temperature is October (23.5°C).
The coldest month (with the lowest average low temperature) is July (20.3°C).
Average pressure
Porto Velho, Brazil
- Average pressure in January:
1010mbar - Average pressure in February:
1009.9mbar - Average pressure in March:
1010.1mbar - Average pressure in April:
1010.7mbar - Average pressure in May:
1011.7mbar - Average pressure in June:
1012.6mbar
- Average pressure in July:
1012.6mbar - Average pressure in August:
1011.4mbar - Average pressure in September:
1010.3mbar - Average pressure in October:
1008.9mbar - Average pressure in November:
1008.1mbar - Average pressure in December:
1009.1mbar
The months with the highest atmospheric pressure are June and July (1012.6mbar).
The month with the lowest atmospheric pressure is November (1008.1mbar).
Average wind speed
Porto Velho, Brazil
- Average wind speed in January:
3.7km/h - Average wind speed in February:
3.7km/h - Average wind speed in March:
3.5km/h - Average wind speed in April:
3.5km/h - Average wind speed in May:
3.7km/h - Average wind speed in June:
3.9km/h
- Average wind speed in July:
4km/h - Average wind speed in August:
4.2km/h - Average wind speed in September:
4.1km/h - Average wind speed in October:
4km/h - Average wind speed in November:
3.9km/h - Average wind speed in December:
3.8km/h
The windiest month (with the highest average wind speed) is August (4.2km/h).
The calmest months (with the lowest average wind speed) are March and April (3.5km/h).
Average humidity
Porto Velho, Brazil
The month with the highest relative humidity is February (92%).
The month with the lowest relative humidity is August (53%).
Average rainfall
Porto Velho, Brazil
- Average rainfall in January:
242mm - Average rainfall in February:
230mm - Average rainfall in March:
219mm - Average rainfall in April:
156mm - Average rainfall in May:
98mm - Average rainfall in June:
28mm
The wettest month (with the highest rainfall) is January (242mm).
The driest month (with the least rainfall) is July (8mm).
Average rainfall days
Porto Velho, Brazil
- Average rainfall days in January:
30.3 days - Average rainfall days in February:
26.8 days - Average rainfall days in March:
29.8 days - Average rainfall days in April:
27.1 days - Average rainfall days in May:
23.6 days - Average rainfall days in June:
11 days
- Average rainfall days in July:
5.8 days - Average rainfall days in August:
6.5 days - Average rainfall days in September:
14.5 days - Average rainfall days in October:
20.9 days - Average rainfall days in November:
25.4 days - Average rainfall days in December:
29.4 days
The month with the highest number of rainy days is January (30.3 days).
The month with the least rainy days is July (5.8 days).
Average daylight / Average sunshine
Porto Velho, Brazil
- Average daylight in January:
12h and 36min - Average daylight in February:
12h and 24min - Average daylight in March:
12h and 6min - Average daylight in April:
11h and 54min - Average daylight in May:
11h and 42min - Average daylight in June:
11h and 36min
- Average daylight in July:
11h and 42min - Average daylight in August:
11h and 48min - Average daylight in September:
12h and 6min - Average daylight in October:
12h and 18min - Average daylight in November:
12h and 30min - Average daylight in December:
12h and 36min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 36min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
4h and 48min - Average sunshine in March:
5h and 30min - Average sunshine in April:
6h and 30min - Average sunshine in May:
7h and 36min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
9h and 36min - Average sunshine in August:
9h and 42min - Average sunshine in September:
9h and 12min - Average sunshine in October:
10h and 18min - Average sunshine in November:
8h and 36min - Average sunshine in December:
6h and 48min
The month with the most sunshine is October (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Porto Velho, Brazil
- Average sunshine days in January:
0.4 days - Average sunshine days in February:
1 days - Average sunshine days in March:
0.9 days - Average sunshine days in April:
2.4 days - Average sunshine days in May:
5.9 days - Average sunshine days in June:
17.1 days
- Average sunshine days in July:
24 days - Average sunshine days in August:
23.3 days - Average sunshine days in September:
12.9 days - Average sunshine days in October:
8.4 days - Average sunshine days in November:
3.7 days - Average sunshine days in December:
1 days
The month with the most sunshine days is July (24 days).
The month with the least sunshine days is January (0.4 days).
Average UV index
Porto Velho, Brazil
The months with the highest UV index are May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April and December (UV index 6).
Average cloud cover
Porto Velho, Brazil
The month with the most cloud cover is February (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility
Porto Velho, Brazil
The months with the highest visibility are August and September (10km).
The month with the lowest visibility is February (5km).
