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 below.
Jump to: month-by-month table · sea temperature · nearby alternatives · embed this data
- Sun hours / year
- 2,240
- Sunniest month
- February
- Peak score
- 34/100
- Rain / year
- 662 mm
- Snow / year
- ≈21 cm
- Midday UV at peak
- 7 (high)
- Sea at warmest
- 11°C / 52°F
- Population
- 53k
- Elevation
- 17 m

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 below 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.
See Rio Grande on the interactive sunshine globe →
Nearby places for sunshine
- Punta Arenas Chile · 223 km · best in Feb · 1,460 h sun/yr
- Balmaceda Chile · 918 km · best in Feb · 2,893 h sun/yr
- San Carlos de Bariloche Argentina · 1,427 km · best in Feb · 2,627 h sun/yr
- Puerto Montt Chile · 1,428 km · best in Feb · 2,120 h sun/yr
- Temuco Chile · 1,693 km · best in Jan · 2,637 h sun/yr
- Concepcion Chile · 1,935 km · best in Jan · 3,020 h sun/yr
Nearest destinations
- Ushuaia Argentina · 124 km · 1,395 h sun/yr · best in Feb
- Rio Gallegos Argentina · 263 km · 2,204 h sun/yr · best in Jan
- Rio Turbio Argentina · 386 km · 1,502 h sun/yr · best in Feb
- Puerto Natales Chile · 398 km · 1,502 h sun/yr · best in Feb
- El Calafate Argentina · 487 km · 1,873 h sun/yr · best in Jan
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