Porto Velho monthly weather averages
Average daytime temperature
The bar chart below shows the average monthly peak daytime temperatures at Porto Velho
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 30.3 | 30.6 | 28.8 | 30.8 | 30.6 | 30.3 | 31.5 | 32.8 | 32.7 | 32.3 | 31.4 | 30.8 |
| °F | 86.5 | 87.1 | 83.8 | 87.5 | 87 | 86.5 | 88.7 | 91 | 90.8 | 90.1 | 88.6 | 87.4 |
Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.
Average rainfall & rainy days
The graph below shows the average rainfall and number of rainy days per month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | 304 | 313 | 303 | 235 | 121 | 39 | 28 | 48 | 112 | 190 | 219 | 315 |
| inches | 11.9 | 12.3 | 11.9 | 9.2 | 4.8 | 1.5 | 1.1 | 1.9 | 4.4 | 7.5 | 8.6 | 12.4 |
| Rainy days | 24 | 22 | 24 | 19 | 15 | 9 | 8 | 6 | 9 | 14 | 17 | 22 |
Average annual rainfall in Porto Velho: 2152.433mm (847.4 inches)
Average daily sunshine
The bar chart below shows the average daily sunshine hours in Porto Velho
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hrs sunshine | 3.7 | 3.4 | 3.9 | 4.4 | 4.5 | 6.7 | 7.4 | 5.7 | 5.4 | 5.1 | 6.4 | 4.2 |
Day / night temperatures
The graph below shows the daily range of temperatures for each month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min °C | 21.9 | 22 | 22.1 | 22.2 | 21.2 | 19.5 | 18.6 | 19.3 | 21.1 | 22.1 | 22.2 | 22.2 |
| Max °C | 30.5 | 30.8 | 29 | 31.1 | 30.8 | 30.6 | 31.8 | 33.1 | 33 | 32.6 | 31.7 | 31 |
| Min °F | 71.4 | 71.6 | 71.7 | 71.9 | 70.2 | 67 | 65.5 | 66.7 | 69.9 | 71.7 | 71.9 | 72 |
| Max °F | 79.2 | 79.5 | 77.9 | 79.9 | 78.8 | 77 | 77.4 | 79.2 | 80.6 | 81.1 | 80.4 | 79.9 |
Sea temperature
The graph below shows the average sea temperature.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 25.3 | 25.5 | 25.1 | 24.4 | 23.7 | 23 | 22.3 | 22.1 | 22.2 | 22.7 | 23.5 | 24.5 |
| °F | 77.6 | 77.8 | 77.2 | 76 | 74.7 | 73.5 | 72.2 | 71.7 | 72 | 72.9 | 74.3 | 76 |
Wind speed
The graph below shows the average wind speed.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| km/h | 6 | 6 | 6 | 5 | 5 | 6 | 7 | 7 | 7 | 7 | 7 | 7 |
| mph | 4 | 4 | 4 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 4 | 4 |
A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.
Relative humidity
The graph below shows the average relative humidity.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 89% | 88% | 84% | 82% | 86% | 88% | 80% | 82% | 84% | 86% | 87% | 83% |
Other monthly averages
Porto Velho weather stats
| Hottest month: | October | 32.3°C 90.1°F |
|---|---|---|
| Driest month: | July | 28mm 1.1ins |
| Sunniest month: | July | 7.4hrs |
| Coldest month: | June | 30.3°C 86.5°F |
| Wettest month: | December | 315mm 12.4ins |
| Warmest sea: | February | 25.5°C 77.9°F |
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