Porto Velho weather and climate in 2024
Day
31 °C
Night
21 °C
Sea
0 °C
Precipitation
309 mm
in month
Rainy days
22 days
in month
Daylight
13 hours
average
Sunshine
4 hours
average
Humidity
83 %
Day
31 °C
Night
21 °C
Sea
0 °C
Precipitation
309 mm
in month
Rainy days
22 days
in month
Daylight
13 hours
average
Sunshine
4 hours
average
Humidity
83 %
Overview: Porto Velho
Weather charts for Porto Velho
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Weather overview for Porto Velho
Weather overview
Porto Velho in Brazil is characterized by a tropical monsoon climate, with high temperatures and substantial rainfall throughout the year. The city experiences intense heat, with an average high above 30 degrees Celsius, peaking at around 32.4 degrees in August. Rainfall is also significant, especially in the wet season, which typically spans from January to April. Residents regularly brace for downpours, seeing as much as 333.5 mm in January. Despite the rains, Porto Velho enjoys substantial sunshine, particularly during the dry season, with up to 59.6 hours of sun in July.
January weather
January sees some of the heaviest rainfall in Porto Velho, with an average of 334 mm (13.13 in), and the number of wet days reaches 24 days. The beginning of the year brings warm nights with temperatures averaging 22 °C (72 °F), and hot days typically reaching 31 °C (87 °F).
February weather
As February arrives, the rain scarcely lets up; precipitation measures around 309 mm (12.16 in), and as many as 22 days are marked by rainfall. Temperatures at night stay warm with an average low of 23 °C (73 °F), while daytime temperatures subtly decline to an average high of 30 °C (85 °F).
March weather
The torrential rain continues into March, with rainfall accumulation at 297 mm (11.69 in). The city experiences 23 days characterized by rain. Daytime heat endures with average highs at 31 °C (87 °F), while the night temperature hovers around 22 °C (72 °F).
April weather
April in Porto Velho marks the tail end of the wet season with considerable rainfall at 219 mm (8.62 in), and about 19 days are rainy. The average night temperature is a comfortable 22 °C (71 °F), and the heat of the day reaches 31 °C (88 °F).
May weather
May introduces a decreasing trend in rainfall for Porto Velho, now at about 131 mm (5.16 in), with an estimated 13 days experiencing wet weather. With night-time temperatures averaging 21 °C (69 °F) and daytime highs reaching 31 °C (88 °F), this month sees a decrease in humidity.
June weather
June in Porto Velho brings substantially less rainfall, averaging 43 mm (1.68 in) across only 6 days. Basking in the dry season, nighttime temperatures are cooler at 19 °C (66 °F), while the day promises warmth at an impressive 32 °C (89 °F).
July weather
July's weather embodies the dry season in Porto Velho, with scarce rainfall 29 mm (1.13 in) on about 4 days. July also has the highest sun exposure 7 hours and comfortable night temperatures averaging 19 °C (66 °F), while days continue to be hot with an average of 32 °C (90 °F).
August weather
The peak of the dry season arrives in August, with Porto Velho experiencing the highest average daytime temperatures of the year at 32 °C (90 °F). Rainfall remains low at 48 mm (1.88 in), and there are around 5 days with precipitation. The night warmth is consistent with an average of 20 °C (69 °F).
September weather
September in Porto Velho sees the gradual return of rain, with precipitation amounts nearing 96 mm (3.77 in) and about 10 days witnessing wet conditions. With night-time temperatures averaging 21 °C (71 °F) and daytime highs of 32 °C (90 °F), the transition month offers considerable sun exposure.
October weather
October's weather in Porto Velho brings increased moisture, with rain recorded on an average of 15 days and a total rainfall of 170 mm (6.68 in). The days remain hot at 32 °C (89 °F), and the night still offers warmth with 22 °C (72 °F).
November weather
As Porto Velho heads into November, the rainfall mounts to 210 mm (8.25 in), saturating the city across 18 days. The air remains warm during the day at 31 °C (88 °F), but the nights bring a similar warmth at 22 °C (72 °F).
December weather
The close of the year in Porto Velho is marked by a return to heavy rains and the persistent heat. December endures 309 mm (12.15 in) of rain spread over 22 days. Average night temperatures sit at 21 °C (71 °F), and the daytime heat remains stable at 31 °C (88 °F).
FAQs
How often does it rain in Porto Velho during January?
January in Porto Velho is notably wet, with rain expected on an average of 24 days throughout the month.
What's the typical daily temperature in Porto Velho during February?
The usual daytime temperature in February in Porto Velho is comfortably hot at 30 °C (85 °F), whereas the nights remain warm with an average of 23 °C (73 °F).
How much sun can one expect in Porto Velho during March?
Even amidst the rainy season, Porto Velho manages to garner approximately 4 hours of sunshine each day in March.
Does the amount of rainfall decrease in Porto Velho by April?
Yes, the rainfall in Porto Velho begins to decline in April, a welcome respite from the earlier months, with totals around 219 mm (8.62 in).
Is May much drier than the previous months in Porto Velho?
Indeed, May marks a noticeable decrease in rainfall in Porto Velho, with amounts dropping to 131 mm (5.16 in), signaling the approach of the drier season.
How warm does it get during the day in Porto Velho in June?
Days in Porto Velho during June are quite warm, with average highs peaking at 32 °C (89 °F).
Is July the sunniest month in Porto Velho?
Absolutely, July shines as the sunniest month in Porto Velho, boasting around 7 hours of clear skies and sunshine on average per day.
What is the average high temperature in Porto Velho during August?
In August, the residents of Porto Velho experience the year's highest daily highs, averaging a sizzling 32 °C (90 °F).
Are there many rainy days in Porto Velho during September?
Wetter weather begins to make a comeback in September, though with only approximately 10 days of rain, it doesn't match the intensity of the rainy season.
Does the weather in Porto Velho in October signal the return of the wet season?
Yes, October does indeed demonstrate the onset of the wet season in Porto Velho, with an increased count of rainy days and higher precipitation levels.
How much does it rain in Porto Velho in November?
Substantial rain douses Porto Velho in November, totaling around 210 mm (8.25 in), signifying the strengthening wet season.
Is December considered part of the wet season in Porto Velho?
December in Porto Velho is indeed in the midst of the wet season, with frequent and heavy rain showers defining the month.
We make the most from 40 years of historical weather data to predict the best weather conditions.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.