Climate and monthly weather forecast
Weather in January
January and February, with an average sea temperature of 24.2°C (75.6°F), are months with the warmest seawater in Rio Grande, Brazil. Note: For someone not comfortable with cold, swimming in 24.2°C (75.6°F) waters might be a stretch. Weather in January »
Weather in February
January and February, with an average sea temperature of 24.2°C (75.6°F), are months with the warmest seawater in Rio Grande, Brazil. Note: Your comfort in 24.2°C (75.6°F) waters hinges on your relationship with the cold, today's sunny disposition, wind patterns, and the air's temperature. Weather in February »
Weather in March
In Rio Grande, Brazil, in March, the average water temperature is 23.8°C (74.8°F). Note: The cold tolerance of an individual, along with sunshine, wind, and the temperature of the environment, affects the enjoyment of swimming in 23.8°C (74.8°F) waters. Weather in March »
Weather in April
In Rio Grande, Brazil, the average seawater temperature in April is 21.4°C (70.5°F). Note: Most people do not find pleasure in swimming when the water temperature is 21.4°C (70.5°F). Weather in April »
Weather in May
In Rio Grande, Brazil, the average seawater temperature in May is 18.8°C (65.8°F). Note: The enjoyment of swimming decreases for most when the surface water temperature is 18.8°C (65.8°F). Weather in May »
Weather in June
In Rio Grande, Brazil, the average seawater temperature in June is 16.4°C (61.5°F). Note: Swimming is not a pleasurable activity for most people when the water temperature is 16.4°C (61.5°F). Weather in June »
Weather in July
The month with the coldest seawater in Rio Grande, Brazil, is July, with an average sea temperature of 13.3°C (55.9°F). Note: While a brief time in 13.3°C (55.9°F) at 13°C (55.4°F) is already bracing, plunging below 10°C (50°F) can severely affect breathing and introduce a cold shock, relying on your physical state. Weather in July »
Weather in August
In Rio Grande, Brazil, in August, the average water temperature is 13.8°C (56.8°F). Note: In 13.8°C (56.8°F), even brief exposure to 13°C (55.4°F) feels biting, and anything less than 10°C (50°F) risks cold shock and impaired breathing, considering one's health. Weather in August »
Weather in September
In Rio Grande, Brazil, in September, the average water temperature is 13.9°C (57°F). Note: It is life-risking to swim in 13.9°C (57°F). Briefly staying in 13°C (55.4°F) waters feels unsettling, and temperatures below 10°C (50°F) might result in cold shock and loss of breath control, hinging on personal endurance. Weather in September »
Weather in October
In Rio Grande, Brazil, the average seawater temperature in October is 17.3°C (63.1°F). Note: Most people do not find pleasure in swimming when the water temperature is 17.3°C (63.1°F). Weather in October »
Weather in November
In Rio Grande, Brazil, in November, the average water temperature is 19.6°C (67.3°F). Note: Swimming is not enjoyable for most people in water that is 19.6°C (67.3°F). Weather in November »
Weather in December
In Rio Grande, Brazil, in December, the average water temperature is 21.8°C (71.2°F). Note: The majority of individuals do not enjoy swimming in water that is 21.8°C (71.2°F). Weather in December »
Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What months are the sea warmest in Rio Grande?
January and February, with an average sea temperature of 24.2°C (75.6°F), are months with the warmest seawater in Rio Grande.
What is the month with the shortest days in Rio Grande?
With an average of 10h and 6min of daylight, June has the shortest days of the year.
What month is the sea coldest in Rio Grande?
The month with the coldest seawater is July, with an average sea temperature of 13.3°C (55.9°F).
When are the longest days in Rio Grande?
With an average of 14h and 12min of daylight, December has the longest days of the year.
Is there Daylight Saving Time (DST) in Rio Grande?
Rio Grande, Brazil, does not observe Daylight Saving Time (DST). -03 timezone is used over the entire year.
Average sea temperature
Rio Grande, Brazil
The best months for swimming (with the highest average sea temperature) are January and February (24.2°C).
The coldest month (with the lowest average sea temperature) is July (13.3°C).
Average daylight
Rio Grande, Brazil
- Average daylight in January:
14h and 0min - Average daylight in February:
13h and 1min - Average daylight in March:
12h and 2min - Average daylight in April:
11h and 2min - Average daylight in May:
10h and 3min - Average daylight in June:
10h and 1min
- Average daylight in July:
10h and 2min - Average daylight in August:
11h and 0min - Average daylight in September:
11h and 5min - Average daylight in October:
12h and 5min - Average daylight in November:
13h and 5min - Average daylight in December:
14h and 1min
The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).
