Rio das Ostras Climate by Month
Rio das Ostras, Rio de Janeiro, Brazil
Warm all year, with rain spread through the year.
The climate in Rio das Ostras is warm all year, with rain spread through the year. Afternoon highs range from 78°F (26°C) in July to 88°F (31°C) in February, and July nights average 60°F (16°C). It gets 48 in (1209 mm) of rain a year, spread across the months. The air is humid, averaging 79% relative humidity.
- Warmest month
- 88°F(31°C)
- Average high, February
- Coldest nights
- 60°F(16°C)
- Average low, July
- Rain per year
- 48 in(1209 mm)
- No clear rainy season
- Humidity
- 79%
- Sunniest: February
Best and worst months in Rio das Ostras
Best for weatherJune to August are the best time for weather in Rio das Ostras: highs near 79°F (26°C) and about 1.3 in (33 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; December is the wettest, with 7.6 in (192 mm) of rain.
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in August.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Rio das Ostras weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 88°F(31°C) | 70°F(21°C) | 6.5 in(166 mm) | 77% | 5.3 |
| FebFebruary | 88°F(31°C) | 71°F(21°C) | 5.3 in(135 mm) | 79% | 5.3 |
| MarMarch | 86°F(30°C) | 70°F(21°C) | 6.4 in(163 mm) | 79% | 4.5 |
| AprApril | 84°F(29°C) | 68°F(20°C) | 3.8 in(96 mm) | 79% | 4.1 |
| MayMay | 80°F(27°C) | 63°F(17°C) | 3.0 in(75 mm) | 79% | 3.5 |
| JunJuneBest | 79°F(26°C) | 61°F(16°C) | 1.5 in(38 mm) | 80% | 3.3 |
| JulJulyBest | 78°F(26°C) | 60°F(16°C) | 1.3 in(32 mm) | 79% | 3.4 |
| AugAugustBest | 79°F(26°C) | 61°F(16°C) | 1.1 in(29 mm) | 77% | 4.1 |
| SepSeptember | 80°F(27°C) | 63°F(17°C) | 1.8 in(45 mm) | 79% | 4.3 |
| OctOctober | 82°F(28°C) | 66°F(19°C) | 3.4 in(86 mm) | 80% | 4.5 |
| NovNovember | 83°F(29°C) | 67°F(19°C) | 6.0 in(152 mm) | 81% | 4.5 |
| DecDecember | 85°F(30°C) | 70°F(21°C) | 7.6 in(192 mm) | 81% | 4.6 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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