Climate averages 1991–2020
Araruama weather
in August.
A warm, moderately wet month: the 11th warmest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Araruama: daytime highs average 23.4°C and nights cool to about 19.1°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 42 mm of rain on roughly 7 days, which makes August a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 20 min on an average August day.
The nearest other city in this atlas is Saquarema (13 km away). In August its highs average 23.8°C, about as warm as Araruama, with 36 mm of rain.
Among the 448 cities listed in Brazil, Araruama ranks joint 342nd of 448 for the warmest August highs and joint 276th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; Araruama is 2.8°C cooler than that mean.
From August to September, average highs rise by 0.5°C to 23.9°C, and monthly rainfall rises from 42 mm to 74 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Araruama climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.5°C23.6°C | 23.6°C | 178 | 15.5 | 13.413 h |
| February | 28.0°C23.9°C | 23.9°C | 128 | 11.7 | 12.913 h |
| March | 27.2°C23.6°C | 23.6°C | 162 | 16.1 | 12.212 h |
| April | 26.1°C22.5°C | 22.5°C | 85 | 11.6 | 11.612 h |
| May | 24.2°C20.5°C | 20.5°C | 73 | 10.7 | 11.011 h |
| June | 23.6°C19.5°C | 19.5°C | 43 | 6.9 | 10.811 h |
| July | 23.2°C18.9°C | 18.9°C | 45 | 7.6 | 10.911 h |
| August, selected | 23.4°C19.1°C | 19.1°C | 42 | 7.2 | 11.311 h |
| September | 23.9°C19.7°C | 19.7°C | 74 | 9.9 | 11.912 h |
| October | 24.6°C20.7°C | 20.7°C | 94 | 11.1 | 12.613 h |
| November | 25.2°C21.5°C | 21.5°C | 172 | 15.9 | 13.213 h |
| December | 26.6°C22.9°C | 22.9°C | 189 | 16.8 | 13.514 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Saquarema in AugustBrazil · 13 kmHigh 23.8°C · Low 18.4°C · 36 mm rain
- São Pedro da Aldeia in AugustBrazil · 25 kmHigh 23.4°C · Low 19.0°C · 31 mm rain
- Cabo Frio in AugustBrazil · 32 kmHigh 23.4°C · Low 19.4°C · 28 mm rain
- Maricá in AugustBrazil · 49 kmHigh 25.1°C · Low 18.2°C · 38 mm rain
- Itaboraí in AugustBrazil · 55 kmHigh 24.9°C · Low 15.8°C · 43 mm rain
- Rio das Ostras in AugustBrazil · 56 kmHigh 25.0°C · Low 17.8°C · 34 mm rain
- Nova Friburgo in AugustBrazil · 68 kmHigh 22.6°C · Low 13.7°C · 50 mm rain
- São Gonçalo in AugustBrazil · 73 kmHigh 25.3°C · Low 16.8°C · 44 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Araruama) is explained once on the Araruama year overview and on the Sources, method and limits page.