Weather in Porto Velho now
Weather in Porto Velho now: 33°C, Mainly clear, Humidity 57%, Wind 4 km/h.
Porto Velho sits at 8.8° south latitude, in the equatorial belt, 90 m above sea level, in the America/Porto_Velho time zone. Over the week ahead highs range from 29° to 34° and lows from 24° to 25°, averaging 29°.
Forecast rainfall totals 73 mm, and 6 of the seven days carry a chance above 50%. Today the sun rises at 05:51 and sets at 18:10: 12:19 of daylight.
| Conditions | high | low | rain | Wind | UV index | |
|---|---|---|---|---|---|---|
| Today | Thunderstorm | 34° | 25° | 67% | 11 km/h | 9 |
| Tomorrow | Rain showers | 34° | 24° | 41% | 22 km/h | 9 |
| Mon, Oct 19 | Thunderstorm | 33° | 24° | 84% | 12 km/h | 9 |
| Tue, Oct 20 | Thunderstorm | 33° | 25° | 78% | 12 km/h | 9 |
| Wed, Oct 21 | Thunderstorm | 34° | 25° | 83% | 11 km/h | 9 |
| Thu, Oct 22 | Thunderstorm | 29° | 24° | 92% | 9 km/h | 7 |
| Fri, Oct 23 | Light drizzle | 32° | 25° | 59% | 11 km/h | 9 |
Weather data by Open-Meteo (ECMWF, GFS, ICON models and national weather services). Updated every 15 minutes.
Weather in Porto Velho month by month
The table gathers the 2016-2025 climate normals for Porto Velho: average highs and lows, total rainfall and number of rainy days for each month of the year.
Porto Velho has an annual mean temperature of 27.2°. The warmest month is September, when highs sit around 33.6°; the coldest is July, with average lows of 21.7°. The 11.9° gap between those two ends of the calendar is the measure of how much the year swings here.
Rainfall totals about 2,376 mm a year, spread over roughly 227 rainy days. The wettest month is January, averaging 343.5 mm across 28 days; the driest is July, with 5.7 mm.
| Month | Average high | Average low | Rainfall | Rainy days |
|---|---|---|---|---|
| January | 29.8° | 23.6° | 343.5 mm | 28 |
| February | 29.5° | 23.5° | 336 mm | 26 |
| March | 29.5° | 23.6° | 339.4 mm | 29 |
| April | 29.7° | 23.6° | 277 mm | 27 |
| May | 30° | 23.2° | 140.4 mm | 17 |
| June | 30.6° | 22.3° | 37.7 mm | 7 |
| July | 32.8° | 21.7° | 5.7 mm | 1 |
| August | 33.4° | 22.7° | 42.1 mm | 6 |
| September | 33.6° | 23.8° | 89 mm | 14 |
| October | 32.5° | 24.1° | 154.6 mm | 19 |
| November | 31.2° | 23.9° | 275.8 mm | 24 |
| December | 30° | 23.7° | 335.2 mm | 29 |
When to visit Porto Velho
For travellers who plan around the weather, February–April tend to be the most comfortable stretch: average highs between 29.5° and 29.7° and rainfall below the yearly average.
What to expect each month
- In January, highs sit near 29.8° and lows near 23.6°, with about 343.5 mm of rain over 28 days.
- In February, highs sit near 29.5° and lows near 23.5°, with about 336 mm of rain over 26 days.
- In March, highs sit near 29.5° and lows near 23.6°, with about 339.4 mm of rain over 29 days.
- In April, highs sit near 29.7° and lows near 23.6°, with about 277 mm of rain over 27 days.
- In May, highs sit near 30° and lows near 23.2°, with about 140.4 mm of rain over 17 days.
- In June, highs sit near 30.6° and lows near 22.3°, with about 37.7 mm of rain over 7 days.
- In July, highs sit near 32.8° and lows near 21.7°, with about 5.7 mm of rain over 1 days.
- In August, highs sit near 33.4° and lows near 22.7°, with about 42.1 mm of rain over 6 days.
- In September, highs sit near 33.6° and lows near 23.8°, with about 89 mm of rain over 14 days.
- In October, highs sit near 32.5° and lows near 24.1°, with about 154.6 mm of rain over 19 days.
- In November, highs sit near 31.2° and lows near 23.9°, with about 275.8 mm of rain over 24 days.
- In December, highs sit near 30° and lows near 23.7°, with about 335.2 mm of rain over 29 days.
Recorded extremes
Across 2016-2025, the thermometer reached 38° at the top of the series and fell to 15.4° at the bottom. These are observed values, not averages: they show what the city has actually faced.
Normals computed from the ERA5 reanalysis (Copernicus/ECMWF), 2016-2025 series.
FAQ
What is the temperature in Porto Velho right now?
It is 33°C in Porto Velho right now, with mainly clear. It feels like 40°C.
Will it rain in Porto Velho today?
The peak chance of rain today is 67%, with about 3.9 mm expected.
What will the weather be tomorrow in Porto Velho?
Tomorrow the high is 34° and the low 24°, with rain showers.
Where does the data come from and how often is it updated?
Data comes from the ECMWF, GFS and ICON models and national weather services via Open-Meteo, updated every 15 minutes.
What is the warmest month in Porto Velho?
The warmest month is September, with average highs of 33.6° and lows of 23.8°.
Does it rain a lot in Porto Velho?
The city gets about 2,376 mm a year over 227 rainy days. The wettest month is January, with 343.5 mm.
When is the best time to visit Porto Velho?
On weather grounds, February–April combine the most agreeable temperatures with below-average rainfall.