Buenos Aires F.D. weather in September
September is a fair month to visit Buenos Aires F.D.: highs of 17°C (63°F) and about 83 mm (3.3 in) of rain on average. Nights average 12°C (53°F) and cloud cover 53% (NASA POWER, 2001–2025 averages). It is the 5th driest month of the year and the 4th coolest. Compared with August, it is warmer and wetter; October brings highs of 20°C (68°F) and 109 mm (4.3 in) of rain.
Figures are long-term averages for Buenos Aires, the largest city in Buenos Aires F.D.. See below for other places.
Is September a good time to visit Buenos Aires F.D.?
fair month Weather score 67/100.
September is a fair month in Buenos Aires F.D.. The weather is usually best in Oct–Apr.
Does it rain a lot in Buenos Aires F.D. in September?
Some rain is normal: about 83 mm (3.3 in) falls in an average September. It is the 5th driest month of the year.
How warm is Buenos Aires F.D. in September?
Days average 17°C (63°F) and nights 12°C (53°F).
Buenos Aires F.D. weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 28°C (82°F) | 22°C (71°F) | 104 mm | 45% | best |
| February | 27°C (80°F) | 21°C (71°F) | 121 mm | 46% | best |
| March | 25°C (76°F) | 20°C (67°F) | 123 mm | 43% | best |
| April | 21°C (70°F) | 16°C (62°F) | 98 mm | 47% | best |
| May | 17°C (63°F) | 13°C (56°F) | 74 mm | 55% | fair |
| June | 14°C (58°F) | 10°C (50°F) | 54 mm | 57% | fair |
| July | 13°C (56°F) | 9°C (48°F) | 72 mm | 58% | least pleasant |
| August | 15°C (59°F) | 10°C (50°F) | 71 mm | 54% | fair |
| September | 17°C (63°F) | 12°C (53°F) | 83 mm | 53% | fair |
| October | 20°C (68°F) | 15°C (58°F) | 109 mm | 53% | best |
| November | 24°C (74°F) | 18°C (64°F) | 101 mm | 46% | best |
| December | 26°C (79°F) | 20°C (68°F) | 94 mm | 43% | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across Buenos Aires F.D. in September
Weather can differ a lot within Buenos Aires F.D.: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Buenos Aires | 17°C (63°F) | 12°C (53°F) | 83 mm | fair |
| Palermo | 17°C (63°F) | 12°C (53°F) | 83 mm | fair |
| Balvanera | 17°C (63°F) | 12°C (53°F) | 83 mm | fair |
| Belgrano | 19°C (67°F) | 8°C (46°F) | 80 mm | best |
| Villa Lugano | 19°C (67°F) | 8°C (46°F) | 80 mm | best |
| Barracas | 17°C (63°F) | 12°C (53°F) | 83 mm | fair |
| Colegiales | 19°C (67°F) | 8°C (46°F) | 80 mm | best |
| Boedo | 17°C (63°F) | 12°C (53°F) | 83 mm | fair |
| Retiro | 17°C (63°F) | 12°C (53°F) | 83 mm | fair |
| Villa Santa Rita | 19°C (67°F) | 8°C (46°F) | 80 mm | best |
| Villa Ortúzar | 19°C (67°F) | 8°C (46°F) | 80 mm | best |