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Porto Velho weather

Rondônia · 548,952 inhabitants · Thursday, October 29 · updated 13:08

Air: Poor Heatwave risk · 13 d Moderate storm risk · Sat, Mon, Tue

31°

Overcast

Feels like 42°C

Wind

4 km/h

Gusts

9 km/h

Humidity

63 %

Pressure

1011 hPa

Clouds

88 %

Storm

Rise 05:47 Set 18:11 Day 12 h 24 min UV 6 · Moderate

Morning, afternoon, evening

Trend

Afternoon

Overcast

31°29°

Feels like 42°

Wind ↑ E 6 km/h

Humidity 63 %

Evening

Clear sky

27°24°

Feels like 38°

Wind ↑ SE 3 km/h

Humidity 86 %

14:00

31°

SE 4

17:00

29°

E 6

Porto Velho forecast in charts · next 7 days

The week ahead: highs and lows

▲ This week runs +3.8° warmer than usual

Highs Lows Usual for the season (1991–2020 average)

Hourly detail

Temperature (°C) Rain (mm) Wind (km/h)

Porto Velho climate: what a normal year looks like

The thermometer moves little from one season to the next: typical afternoon highs range from 30 °C in February to 33 °C in August, and the coolest nights (July) average 22 °C.

A normal year brings roughly 2,280 mm of rain — more than 91% of the towns of 20,000+ people we compared it with.

Days are almost the same length all year: 11 h 36 min of daylight in late June, 12 h 38 min in late December.

Forecast highs for the coming week average 37 °C, 5 °C warmer than a normal October (32 °C).

30-year averages (1991–2020)
Month	Typical high	Typical low	Rainfall
Jan	30 °C	24 °C	311 mm
Feb	30 °C	24 °C	324 mm
Mar	30 °C	24 °C	332 mm
Apr	30 °C	24 °C	231 mm
May	30 °C	23 °C	138 mm
Jun	31 °C	23 °C	47 mm
Jul	32 °C	22 °C	24 mm
Aug	33 °C	23 °C	45 mm
Sep	33 °C	24 °C	103 mm
Oct	32 °C	24 °C	177 mm
Nov	31 °C	24 °C	244 mm
Dec	30 °C	24 °C	302 mm
Whole year	31 °C	23 °C	2,280 mm

Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 8.76° S, 63.90° W, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.

Air you breathe in Porto Velho: pollution and pollen

4/6

Poor

European Air Quality Index (EAQI), from Copernicus CAMS

PM2.527µg/m³

PM1027µg/m³

Copernicus CAMS model, updated several times a day.

Rain radar around Porto Velho

Rain observed over the last two hours by official weather radars around Porto Velho, followed by the radar forecast for the next hour where the weather service provides one.

Rain radar Last two hours, then forecast where available · drag the timeline

No open weather radar covers Porto Velho yet: the map shows our hour-by-hour rain forecast (ICON, GFS).

Moon over Porto Velho

Waning gibbous

87 % illuminated · 18.3 days

Rise 17:45 Set 04:42

Fri 30/10 79%

Sat 31/10 69%

Sun 1/11 59%

Mon 2/11 49% Last quarter

Tue 3/11 38%

Wed 4/11 28%

Thu 5/11 19%

Fri 6/11 12%

Sat 7/11 6%

Sun 8/11 2%

Mon 9/11 0%

Tue 10/11 1% New moon

Moonrise and moonset in local time (America/Porto_Velho); phase and lit fraction from a synodic calculation.

Look up a past day in Porto Velho

Curious about the weather in Porto Velho on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.

Porto Velho weather at a glance

This page gathers everything about the weather in Porto Velho, Rondônia: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “overcast”, it is 31 °C (feels like 42 °C) and the wind blows at 4 km/h.

Expected range today: 23 °C to 31 °C and around 2 mm of rain; keep an eye on thunderstorms; it will be very hot. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms.

Porto Velho weather data for developers

Use the Porto Velho forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.

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Where does this forecast come from? Our engine, checked every day against 1125 weather stations