Weather in Formosa - 14-day forecast

Detailed weather forecast for Formosa, Argentina: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.

Forecast for the next days in Formosa

today☁️ 16°💧 2.6 mm

Sun☀️ 15°💧 1 mm

Mon☀️ 16°💧 1.7 mm

Tue☀️ 23°💧 4.1 mm

Wed🌧️ 28°💧 0.9 mm

Thu🌧️ 28°💧 8 mm

Fri🌧️ 26°💧 25.6 mm

Sat🌧️ 15°💧 0.2 mm

Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Saturday 5 Sept in Formosa, the forecast high is 16°C. Typical daytime temperatures at this time of year range from 23°C to 35°C, so it will be exceptionally cool. It is cooler than 97% of similar days.

Saturday 5 Sept

16°Cexceptionally cool

usually 23°C–35°C

cooler than 97% of similar days

night: near normal rain: more rain than usual wind: lighter than usual

Sunday 6 Sept

15°Cexceptionally cool

usually 23°C–35°C

cooler than 97% of similar days

night: cooler than usual rain: more rain than usual wind: lighter than usual

Monday 7 Sept

16°Cexceptionally cool

usually 23°C–35°C

cooler than 97% of similar days

night: cooler than usual rain: more rain than usual wind: exceptionally light

Tuesday 8 Sept

23°Ccooler than usual

usually 23°C–34°C

cooler than 79% of similar days

night: warmer than usual rain: more rain than usual wind: exceptionally light

Wednesday 9 Sept

28°Cnear normal

usually 23°C–34°C

night: exceptionally warm rain: more rain than usual wind: lighter than usual

Thursday 10 Sept

28°Cnear normal

usually 23°C–34°C

night: exceptionally warm rain: exceptionally wet wind: exceptionally light

Friday 11 Sept

26°Cnear normal

usually 24°C–34°C

night: warmer than usual rain: exceptionally wet wind: typical

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →

cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 29°C by day. The coolest year was 1983 (21°C) and the warmest was 1995 (38°C). The current forecast averages 22°C - lower than in 98% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - Formosa

Formosa - 14-day weather forecast infographic

Day-by-day forecast for Formosa

Saturday5 September 2026

☁️16°overcast clouds

sunrise 07:01 · sunset 18:42 · night 14° · evening 19° · rain 2.55 mm · humidity 61% · wind 5 m/s · clouds 100%

Sunday6 September 2026

☀️15°clear sky

sunrise 07:00 · sunset 18:42 · night 8° · evening 14° · rain 0.96 mm · humidity 32% · wind 5 m/s · clouds 100%

Monday7 September 2026

☀️16°clear sky

sunrise 06:59 · sunset 18:43 · night 10° · evening 17° · rain 1.71 mm · humidity 35% · wind 4 m/s · clouds 72%

Tuesday8 September 2026

☀️23°clear sky

sunrise 06:58 · sunset 18:43 · night 17° · evening 23° · rain 4.05 mm · humidity 35% · wind 3 m/s · clouds 72%

Wednesday9 September 2026

🌧️28°light rain

sunrise 06:57 · sunset 18:43 · night 22° · evening 26° · rain 0.93 mm · humidity 45% · wind 5 m/s · clouds 6%

Thursday10 September 2026

🌧️28°moderate rain

sunrise 06:56 · sunset 18:44 · night 23° · evening 25° · rain 8.01 mm · humidity 61% · wind 3 m/s · clouds 66%

Friday11 September 2026

🌧️26°heavy rain

sunrise 06:55 · sunset 18:44 · night 17° · evening 19° · rain 25.59 mm · humidity 75% · wind 7 m/s · clouds 100%

Saturday12 September 2026

🌧️15°light rain

sunrise 06:54 · sunset 18:45 · night 11° · evening 13° · rain 0.21 mm · humidity 66% · wind 6 m/s · clouds 76%

Sunday13 September 2026

☀️14°clear sky

sunrise 06:53 · sunset 18:45 · night 8° · evening 13° · rain 4.62 mm · humidity 39% · wind 4 m/s · clouds 52%

Monday14 September 2026

☀️16°clear sky

sunrise 06:51 · sunset 18:45 · night 10° · evening 16° · rain 2.04 mm · humidity 43% · wind 4 m/s · clouds 100%

Tuesday15 September 2026

☀️19°clear sky

sunrise 06:50 · sunset 18:46 · night 14° · evening 19° · rain 1.32 mm · humidity 42% · wind 3 m/s · clouds 8%

Wednesday16 September 2026

☁️23°broken clouds

sunrise 06:49 · sunset 18:46 · night 18° · evening 23° · rain 0.93 mm · humidity 44% · wind 3 m/s · clouds 70%

Thursday17 September 2026

🌧️21°light rain

sunrise 06:48 · sunset 18:47 · night 19° · evening 25° · rain 0.48 mm · humidity 73% · wind 3 m/s · clouds 100%

Friday18 September 2026

☁️27°overcast clouds

sunrise 06:47 · sunset 18:47 · night 23° · evening 27° · humidity 63% · wind 5 m/s · clouds 100%

Saturday19 September 2026

🌧️25°moderate rain

sunrise 06:46 · sunset 18:48 · night 21° · evening 23° · rain 12.36 mm · humidity 78% · wind 5 m/s · clouds 100%

UV index in Formosa - is it safe to sunbathe?

Today the UV index in Formosa is 5 (moderate) - unprotected fair skin can burn in about 40 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.

Upcoming public holidays in Argentina: Day of Respect for Cultural Diversity — 12 October · National Sovereignty Day — 23 November · Immaculate Conception Day — 8 December.

Nearby and related places

Fernando de la MoraLimpioLa PlataCorrientesMar del PlataBuenos AiresParanaBahía Blanca

FAQ - Formosa weather

What is the weather like in Formosa today?

Today it is about 16° during the day and 14° at night, overcast clouds.

How far ahead can I check the forecast for Formosa?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.