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Sea Temperature in Rio Grande in September
Complete information on the sea temperature range in the Atlantic Ocean in Rio Grande in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Rio Grande. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Water Temperature Range in Rio Grande in September
11°C
MINIMUN
14.5°C
AVERAGE
18°C
MAXIMUM
Historical Data of Water Temperature in September in Rio Grande
Water Temperature Chart for Atlantic Ocean in Rio Grande in September
Sea Temperature Table in Rio Grande in September Over the Past Years
Day | 2024 | 2023 | 2022 | Average |
---|---|---|---|---|
Sep 1 | 15°C | 14°C | 11°C | 13.0°C |
Sep 2 | 15°C | 14°C | 12°C | 13.3°C |
Sep 3 | 15°C | 14°C | 12°C | 13.3°C |
Sep 4 | 16°C | 14°C | 12°C | 13.8°C |
Sep 5 | 15°C | 14°C | 12°C | 13.5°C |
Sep 6 | 16°C | 14°C | 12°C | 13.5°C |
Sep 7 | 16°C | 14°C | 13°C | 14.0°C |
Sep 8 | 16°C | 14°C | 13°C | 14.0°C |
Sep 9 | 17°C | 14°C | 13°C | 14.3°C |
Sep 10 | 16°C | 14°C | 13°C | 14.3°C |
Sep 11 | 16°C | 14°C | 13°C | 14.5°C |
Sep 12 | 17°C | 15°C | 14°C | 14.8°C |
Sep 13 | 16°C | 15°C | 14°C | 14.8°C |
Sep 14 | 16°C | 15°C | 14°C | 14.5°C |
Sep 15 | 15°C | 16°C | 14°C | 14.8°C |
Sep 16 | 16°C | 15°C | 14°C | 14.5°C |
Sep 17 | 17°C | 15°C | 15°C | 15.3°C |
Sep 18 | 16°C | 15°C | 15°C | 15.3°C |
Sep 19 | 16°C | 15°C | 15°C | 15.0°C |
Sep 20 | 17°C | 15°C | 15°C | 15.3°C |
Sep 21 | 17°C | 15°C | 15°C | 15.5°C |
Sep 22 | 16°C | 16°C | 16°C | 15.5°C |
Sep 23 | 16°C | 15°C | 16°C | 15.5°C |
Sep 24 | 16°C | 16°C | 16°C | 15.5°C |
Sep 25 | 16°C | 15°C | 16°C | 15.5°C |
Sep 26 | 16°C | 15°C | 16°C | 15.5°C |
Sep 27 | 18°C | 15°C | 17°C | 16.3°C |
Sep 28 | 17°C | 15°C | 17°C | 16.0°C |
Sep 29 | 17°C | 15°C | 17°C | 16.0°C |
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
Rio Grande Climate and Swimming Opportunities in September
21°C
Average Day Air Temperature
9°C
Average Night Air Temperature
206 mm
Precipitation Amount per Month
14 days
Number of Rainy Days
12 hrs
Daylight
per Day
5 hrs
Sunshine
per Day
8 km/h
Average Wind Speed
81%
Average
humidity
Rio Grande lies within the Rio Grande Do Sul in Brazil. The average daytime temperature in Rio Grande in September is 21°C (69°F), while the nighttime average is 9°C (48°F). There are typically 14 rainy days during the month, with a total precipitation of 206 mm (8.1 inches). The daylight duration in September in Rio Grande is 12 hours, with an average of 5 hours of sunshine per day. The average wind speed in September is 8 km/h (5 mph), and the humidity level is around 81%.
The water temperature in Rio Grande in September ranges from 13°C to 16°C (55°F to 61°F). At the beginning of the month, the average temperature is around 13°C (55°F), shifting to 15°C (59°F) by mid-September and reaching 16°C (61°F) in the last ten days. Overall, the average sea temperature in Rio Grande for September is 15°C (59°F). The contrast between cool water and warm air makes for a refreshing swim. A great choice for those who enjoy invigorating dips.
Frequently Asked Questions About Water Temperatures in September in Rio Grande
What is the sea temperature in Rio Grande in September?
The water temperature in the Atlantic Ocean in Rio Grande in September ranges from 13°C to 16°C (55°F to 61°F).
Is it possible to swim in the Atlantic Ocean in Rio Grande in September?
The average sea temperature in Rio Grande in September is 15°C (59°F), and the air temperature is 21°C (69°F), so the contrast between cool water and warm air makes for a refreshing swim. A great choice for those who enjoy invigorating dips.