Formosa in Winter
In winter (June, July and August), Formosa sees average daytime highs around 23°C and overnight lows near 13°C, with 240 mm of rain over about 23 wet days across the season. It is the coldest season of the year and the driest season of the year.
Over the season highs climb from about 22°C in early June to 26°C by late August. The sky is clear or mostly clear about 48% of the time across winter, and the air most often feels dry.
Winter is Formosa's best season of the year to visit on our travel score. For the whole year in context, see Formosa's year-round climate.
- Avg daytime high
- 23°C
- coldest season of the year
- Avg overnight low
- 13°C
- Rainfall
- 240 mm
- 23 wet days
- Avg wind
- 14 km/h
- Travel score
- 7.4
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Formosa in Winter
Over the season highs climb from about 22°C in early June to 26°C by late August.
A typical winter day in Formosa reaches about 23°C and drops to 13°C overnight. The warmest of the three months is August, the coolest July.
How winter really feels in Formosa
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
winter sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Formosa weather by month
How the three winter months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 33° / 23° | 119 | 11.1 | 13.5 | 3.5 |
| Feb | 32° / 23° | 137 | 11.5 | 12.9 | 3.8 |
| Mar | 31° / 21° | 128 | 10.9 | 12.2 | 4.7 |
| Apr | 28° / 18° | 153 | 9.5 | 11.4 | 6.3 |
| May | 24° / 15° | 128 | 8.4 | 10.7 | 7.2 |
| Jun | 22° / 14° | 99 | 8.4 | 10.4 | 7.0 |
| Jul | 22° / 12° | 78 | 7.5 | 10.5 | 7.3 |
| Aug | 24° / 14° | 64 | 6.6 | 11.1 | 7.8 |
| Sep | 26° / 16° | 111 | 8.6 | 11.8 | 7.1 |
| Oct | 29° / 18° | 184 | 11.5 | 12.6 | 5.7 |
| Nov | 30° / 20° | 182 | 10.6 | 13.3 | 5.0 |
| Dec | 32° / 22° | 162 | 11.4 | 13.6 | 4.0 |
Cloud cover in Winter
The sky is clear or mostly clear about 48% of the time across winter.
Chance of precipitation in Winter
Formosa gets around 240 mm of rain over 23 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 14 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 10 h 30 min in early June to 11 h 24 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 3.2 kWh/m².
Is winter a good time to visit Formosa?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is one of the better times to visit Formosa for general sightseeing.
What to pack for Formosa in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Formosa sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes and rain gear. About 23 days see rain.
UV index in Formosa in Winter
Clear-sky midday UV across winter averages around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Formosa peaks around January 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 15 | 14 | 11 | 8 | 6 | 4 | 5 | 5 | 8 | 7 | 12 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate | Moderate | Very high | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 14 | Extreme |
| Mar | 11 | Extreme |
| Apr | 8 | Very high |
| May | 6 | High |
| Jun | 4 | Moderate |
| Jul | 5 | Moderate |
| Aug | 5 | Moderate |
| Sep | 8 | Very high |
| Oct | 7 | Very high |
| Nov | 12 | Extreme |
| Dec | 13 | Extreme |
Air quality in Formosa in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Formosa is worst in September — around 23 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (May, 8 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 16 | 13 | 13 | 10 | 8 | 9 | 12 | 21 | 23 | 15 | 10 | 9 |
| Level | Moderate | Moderate | Moderate | Good | Good | Good | Good | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 16 | Moderate |
| Feb | 13 | Moderate |
| Mar | 13 | Moderate |
| Apr | 10 | Good |
| May | 8 | Good |
| Jun | 9 | Good |
| Jul | 12 | Good |
| Aug | 21 | Moderate |
| Sep | 23 | Moderate |
| Oct | 15 | Moderate |
| Nov | 10 | Good |
| Dec | 9 | Good |
Where is Formosa?
Formosa sits at 26.2°S, 58.2°W, 67 m above sea level, in Argentina. The nearest listed city is Pilar, 76 km away.
Topography around Formosa
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Formosa.
Within 3 km, the terrain around Formosa has only modest variations in elevation — a maximum elevation change of 17 m around an average of 58 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 23 m; within 80 km, only modest variations in elevation — a maximum elevation change of 182 m.
The land around Formosa is covered by artificial surfaces (50%) and trees (29%) within 3 km, trees (44%) and grassland (39%) within 16 km, and grassland (49%) and trees (36%) within 80 km.
Argentina travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / I
- 220 V · 50 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $14,898
- 2025
- Happiness
- 6.4 / 10
- World Happiness, 2025
- Homicide rate
- 4.5
- per 100k, 2023
- Road deaths
- 14.1
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- High
- EF EPI 575
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Formosa (-26.1849°, -58.1731°, elevation 67 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.