Weather in Rio das Ostras: July
| Average day temperature: | 75.2°F | |
| Average night temperature: | 64.4°F | |
| Sea water temperature: | 71.6°F | |
| Number of sunny days: | 20 days | |
| Day length: | 10.8 - 11.1 hours | |
| Number of rainy days: | 0 days | |
| Precipitation totals: | 0.2 in. | |
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| Rio das Ostras |
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| Rio das Ostras |
Air temperature in July, °F
The highest day temperature during July of 2025 was 82°F. At the same time the lowest night temperature was 58°F. Daily and nightly averages during July were 72.8°F and 62.3°F.
Sea water temperature in Rio das Ostras in July, °F
The average sea water temperature in July of 2025 was 70.2°F. The highest and lowest sea temperatures during the month were 71.8°F and 69.4°F.
Mostly all days in July are sunny but cloudy days are also possible.
Precipitation total in July, in.
Precipitation total value in Rio das Ostras in July is 0.2 in. Other months of the year show relatively similar values.
The average wind speed value in July is 8.2 mph
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in July is: 7.9.
Best time for vacation in Rio das Ostras
Rio das Ostras on a weather map

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