Rio das Ostras, Rio de Janeiro Climate
Brazil
Pop. 168,099 Elev. 11 m / 36 ft
TZ: America/Sao_Paulo (UTC-3) ·
Temperatures in Rio das Ostras remain warm year-round, from 61°F (16°C) in July to 90°F (32°C) in February. Humidity pushes the summer feels-like temperature to around 107°F (42°C). Precipitation occurs on roughly 53 days per year (39.7 in / 1008 mm total). The city averages 142 sunny days per year and around 39 thunderstorm days. Ocean water temperatures reach 80°F (27°C) in summer.
| Temperature | 32°C (90°F) high | 16°C (61°F) low |
| Feels like | 42°C (107°F) high | 16°C (61°F) low |
| Rain | 53 days | 1008 mm (39.7 in) /yr |
| Sky | 142 sunny | 39 stormy |
| Wind | 1.2 m/s (2.7 mph) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: May, Jun, Jul, Aug, Sep, Nov
Sky & Air by Month
Cloud cover (%)
66
Jan 39
Feb 51
Mar 64
Apr 43
May 40
Jun 41
Jul 45
Aug 56
Sep 66
Oct 63
Nov 61
Dec Humidity (%)
78
Jan 73
Feb 79
Mar 81
Apr 79
May 75
Jun 77
Jul 75
Aug 73
Sep 77
Oct 77
Nov 78
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 114 km Bartolomeu Lisandro Airport (CAW)
Ski resort 541 km Ski Mountain Park
National park 143 km Parque Nacional da Tijuca
Mountain peak
(1,568 m) 39 km Bico da Ura Cada
Hospital 2 km Hospital Municipal Drª Naelma Monteiro da Silva
Hiking trail 63 km Travessia Macaé de Cima - Theodoro de Oliveira
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 30°C 86°F | 24°C 74°F | 142 mm 5.6 in | — | 7 |
| February | 32°C 90°F | 24°C 74°F | 4 mm 0.1 in | — | 16 |
| March | 30°C 86°F | 23°C 74°F | 153 mm 6.0 in | — | 14 |
| April | 28°C 82°F | 22°C 71°F | 114 mm 4.5 in | — | 7 |
| May | 27°C 80°F | 19°C 67°F | 23 mm 0.9 in | — | 14 |
| June | 26°C 79°F | 18°C 64°F | 27 mm 1.1 in | — | 14 |
| July | 24°C 75°F | 16°C 61°F | 27 mm 1.1 in | — | 20 |
| August | 25°C 77°F | 18°C 64°F | 23 mm 0.9 in | — | 15 |
| September | 26°C 78°F | 19°C 66°F | 57 mm 2.2 in | — | 11 |
| October | 26°C 79°F | 20°C 67°F | 151 mm 6.0 in | — | 8 |
| November | 27°C 80°F | 20°C 68°F | 101 mm 4.0 in | — | 8 |
| December | 30°C 86°F | 22°C 72°F | 187 mm 7.4 in | — | 8 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 7 | 10 |
| February | 16 | 0 |
| March | 14 | 4 |
| April | 7 | 4 |
| May | 14 | 0 |
| June | 14 | 1 |
| July | 20 | 0 |
| August | 15 | 0 |
| September | 11 | 1 |
| October | 8 | 7 |
| November | 8 | 4 |
| December | 8 | 8 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 26°C 78°F | 27°C 81°F |
| February | 24°C 76°F | 27°C 81°F |
| March | 27°C 80°F | 27°C 80°F |
| April | 27°C 80°F | 25°C 76°F |
| May | 25°C 76°F | 22°C 72°F |
| June | 23°C 74°F | 21°C 69°F |
| July | 22°C 71°F | 19°C 67°F |
| August | 23°C 73°F | 20°C 67°F |
| September | 22°C 72°F | 21°C 71°F |
| October | 21°C 71°F | 22°C 72°F |
| November | 23°C 74°F | 24°C 75°F |
| December | 25°C 77°F | 26°C 79°F |