Best Time to Visit Rosario
Best time: Sep, Nov, Dec, Aug.
Jan is warmest (30.7°C high); Mar is rainiest (137 mm).
Rosario weather by month
| Month | High °C | Low °C | Rain mm | Sun hrs |
|---|---|---|---|---|
| Jan | 30.7 | 18.3 | 122 | 10.6 |
| Feb | 29.4 | 17.3 | 109 | 10.1 |
| Mar | 26.8 | 15.6 | 137 | 8.3 |
| Apr | 22.8 | 12 | 96 | 6.5 |
| May | 19.5 | 9 | 59 | 4.7 |
| Jun | 15.8 | 6.3 | 36 | 3.6 |
| Jul | 15.7 | 5.7 | 32 | 4.2 |
| Aug | 17.7 | 6.3 | 36 | 5.5 |
| Sep | 20.3 | 8.4 | 59 | 7.1 |
| Oct | 23.1 | 11.6 | 98 | 8.7 |
| Nov | 26.2 | 14.4 | 100 | 10.4 |
| Dec | 29.3 | 17 | 108 | 10.7 |
Average high temperature
Best months by activity
Overall: SepNovDecAug
Beaches: JanDecFebNov
Hiking: AugJulJunSep
Sightseeing: SepAugMayNov
Rosario quick facts
What to pack
Wet months (Jan, Feb, Mar, Apr, Oct, Nov, Dec): raincoat and umbrella.
Frequently asked questions
When is the best time to visit Rosario?
Sep, Nov, Dec, Aug.
What is the rainiest month?
Mar, about 137 mm.
What is the warmest month?
Jan, with average highs of 30.7°C.
Where to stay
See Rosario hotels · Book Rosario tours & activities
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Climate data: Open-Meteo Historical (ERA5), 1991–2020 climate normals.
Licensed under CC BY 4.0.
Open-Meteo.