Rio Grande weather by month & the best time to visit
Argentina · seaside town · oceanic / maritime climate
Rio Grande is short on reliable sunshine. Its best month is February (Score 34/100) — for stronger sun, try one of the nearby alternatives.
When is the best time to visit Rio Grande?
Rio Grande never gets truly sunny weather: February is as good as it gets at 34/100, and May is the low point (0/100). If sunshine is the point of the trip, the nearby alternatives do better.
How sunny is Rio Grande?
Rio Grande gets a moderate 2,240 hours of sunshine a year. February (34/100) is noticeably better than May (0). It ranks #37 of 41 destinations in Argentina for annual sunshine, below the national median of 2,741 hours. The year's 662 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 33 | 13° / 55°F | 7° / 45°F | 65 mm | 7 | 11° / 52°F |
| February | 34 | 13° / 55°F | 6° / 43°F | 58 mm | 6 | 11° / 52°F |
| March | 20 | 11° / 52°F | 6° / 43°F | 71 mm | 3 | 10° / 50°F |
| April | 7 | 9° / 48°F | 4° / 39°F | 65 mm | 1 | 8° / 46°F |
| May | 0 | 6° / 43°F | 2° / 36°F | 59 mm | 0 | 6° / 43°F |
| June | 0 | 3° / 37°F | 0° / 32°F | 54 mm | 0 | 3° / 37°F |
| July | 0 | 3° / 37°F | 0° / 32°F | 51 mm | 0 | 3° / 37°F |
| August | 0 | 4° / 39°F | 0° / 32°F | 51 mm | 1 | 2° / 36°F |
| September | 0 | 6° / 43°F | 1° / 34°F | 43 mm | 2 | 4° / 39°F |
| October | 0 | 8° / 46°F | 2° / 36°F | 40 mm | 4 | 5° / 41°F |
| November | 14 | 10° / 50°F | 4° / 39°F | 50 mm | 6 | 8° / 46°F |
| December | 27 | 12° / 54°F | 6° / 43°F | 55 mm | 7 | 10° / 50°F |
Sea temperature in Rio Grande by month
The sea off Rio Grande is warmest in January at around 11°C / 52°F, and coolest in August at 2°C / 36°F. It never reaches comfortable swimming temperatures (21°C+). Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
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Rio Grande: questions and answers
What kind of destination is Rio Grande?
Rio Grande is a seaside town in Argentina with a oceanic / maritime climate — the sea reaches 11°C at its warmest.
How many hours of sunshine does Rio Grande get a year?
Rio Grande gets about 2,240 hours of sunshine a year, at its best around February.
When is the best time to visit Rio Grande?
Rio Grande is short on reliable sunshine — its best month is only February at 34/100. For a sunnier trip, see the nearest strong-sun alternatives listed on the page.
What is the least sunny month in Rio Grande?
May is the least sunny month in Rio Grande, scoring 0/100 with about 59 mm of rain.
What is the sea temperature in Rio Grande?
The sea in Rio Grande ranges from about 2°C (August) to 11°C (January). Month-by-month sea temperatures are on this page.
How strong is the sun in Rio Grande?
The typical midday UV index in Rio Grande peaks around 7 (high) in January, easing to about 0 (low) in May. Month-by-month midday UV values are in the UV column of the table on this page.
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