Climate in Formosa, Argentina

Formosa, Argentina has a humid subtropical climate. The annual average temperature is about 23.4°C and the city receives roughly 901 mm of precipitation across 99 rainy days a year, with around 1699 hours of sunshine. The warmest month is Jan (highs near 32.8°C) and the coldest is Jul (lows near 14°C). These are deterministic, latitude- and region-based planning estimates — not a forecast or measured station data; check current conditions with an official meteorological service before travel.

Data year 2025; last updated 2026-05-16.

Formosa is classified as Humid Subtropical. This reflects its annual temperature range and the seasonal pattern of its rainfall.

Formosa receives about 901 mm of precipitation a year over roughly 99 rainy days. The wettest month is Jan and the driest is Jul.

Formosa sees an estimated 1699 hours of sunshine a year, concentrated in the warmer months around Jan.

By temperature and rainfall, the most comfortable months in Formosa are Jul, Aug, Jun. Conditions vary year to year — verify with a current forecast before booking.

Formosa has a climate comfort score of 73/100, a comfortable year-round climate by this measure. The score weights mild temperatures most, then rainfall balance, sunshine, low seasonality, and the absence of extreme winter cold or summer heat.