Santa Fe weather in September
September is one of the best months to visit Santa Fe: highs of 22°C (71°F) and about 58 mm (2.3 in) of rain on average. Nights average 8°C (47°F) and cloud cover 48% (NASA POWER, 2001–2025 averages). It is the 5th driest month of the year and the 5th coolest. Compared with August, it is warmer and wetter; October brings highs of 25°C (78°F) and 122 mm (4.8 in) of rain.
Figures are long-term averages for Rosario, the largest city in Santa Fe. See below for other places.
Is September a good time to visit Santa Fe?
best month Weather score 81/100.
Yes. September is one of the best months for weather in Santa Fe.
Does it rain a lot in Santa Fe in September?
No, it is usually dry: about 58 mm (2.3 in) falls in an average September. It is the 5th driest month of the year.
How warm is Santa Fe in September?
Days average 22°C (71°F) and nights 8°C (47°F).
Santa Fe weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 33°C (91°F) | 19°C (66°F) | 123 mm | 50% | least pleasant |
| February | 31°C (87°F) | 18°C (64°F) | 139 mm | 58% | least pleasant |
| March | 28°C (83°F) | 16°C (60°F) | 148 mm | 46% | least pleasant |
| April | 24°C (75°F) | 12°C (53°F) | 111 mm | 49% | fair |
| May | 19°C (66°F) | 9°C (47°F) | 52 mm | 54% | best |
| June | 16°C (61°F) | 5°C (41°F) | 22 mm | 52% | fair |
| July | 16°C (60°F) | 4°C (40°F) | 26 mm | 53% | fair |
| August | 18°C (65°F) | 6°C (42°F) | 38 mm | 47% | best |
| September | 22°C (71°F) | 8°C (47°F) | 58 mm | 48% | best |
| October | 25°C (78°F) | 12°C (53°F) | 122 mm | 51% | fair |
| November | 29°C (84°F) | 15°C (58°F) | 109 mm | 46% | fair |
| December | 32°C (89°F) | 17°C (63°F) | 142 mm | 49% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across Santa Fe in September
Weather can differ a lot within Santa Fe: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Rosario | 22°C (71°F) | 8°C (47°F) | 58 mm | best |
| Santa Fe | 23°C (73°F) | 10°C (49°F) | 57 mm | best |
| Reconquista | 25°C (78°F) | 11°C (52°F) | 50 mm | best |
| Rafaela | 23°C (73°F) | 9°C (47°F) | 55 mm | best |
| Gobernador Gálvez | 22°C (71°F) | 8°C (47°F) | 58 mm | best |
| Venado Tuerto | 21°C (70°F) | 7°C (45°F) | 56 mm | best |
| Santo Tomé | 23°C (73°F) | 10°C (49°F) | 57 mm | best |
| Villa Constitución | 22°C (71°F) | 8°C (47°F) | 58 mm | best |
| Cañada de Gómez | 22°C (71°F) | 7°C (45°F) | 57 mm | best |
| Esperanza | 23°C (73°F) | 10°C (49°F) | 57 mm | best |
| Granadero Baigorria | 22°C (71°F) | 8°C (47°F) | 58 mm | best |
| Casilda | 22°C (71°F) | 7°C (45°F) | 57 mm | best |