Chascomús in Spring
In spring (September, October and November), Chascomús sees average daytime highs around 21°C and overnight lows near 11°C, with 260 mm of rain over about 24 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs climb from about 17°C in early September to 25°C by late November. The sky is clear or mostly clear about 37% of the time across spring, and the air most often feels dry.
Spring is Chascomús's 2nd-best season to visit on our travel score. For the whole year in context, see Chascomús's year-round climate.
- Avg daytime high
- 21°C
- 3rd-warmest season
- Avg overnight low
- 11°C
- Rainfall
- 260 mm
- 24 wet days
- Avg wind
- 14 km/h
- Travel score
- 6.7
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Chascomús in Spring
Over the season highs climb from about 17°C in early September to 25°C by late November.
A typical spring day in Chascomús reaches about 21°C and drops to 11°C overnight. The warmest of the three months is November, the coolest September.
Chascomús weather by month
How the three spring months (September, October and November) 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 | 28° / 18° | 88 | 8.1 | 14.1 | 6.3 |
| Feb | 27° / 17° | 91 | 8.2 | 13.3 | 6.8 |
| Mar | 25° / 16° | 85 | 7.7 | 12.3 | 7.4 |
| Apr | 22° / 12° | 87 | 7.3 | 11.1 | 7.2 |
| May | 18° / 9° | 57 | 6 | 10.1 | 6.3 |
| Jun | 15° / 6° | 65 | 5.7 | 9.6 | 4.9 |
| Jul | 14° / 5° | 61 | 6.3 | 9.8 | 4.4 |
| Aug | 16° / 7° | 65 | 6.4 | 10.7 | 5.5 |
| Sep | 18° / 9° | 72 | 7 | 11.8 | 6.2 |
| Oct | 21° / 11° | 101 | 9.1 | 12.9 | 6.6 |
| Nov | 24° / 14° | 88 | 8.3 | 13.9 | 7.2 |
| Dec | 27° / 16° | 81 | 8.7 | 14.4 | 6.9 |
Cloud cover in Spring
The sky is clear or mostly clear about 37% of the time across spring.
Chance of precipitation in Spring
Chascomús gets around 260 mm of rain over 24 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 14 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 12 min in early September to 14 h 12 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.5 kWh/m².
Is spring a good time to visit Chascomús?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Chascomús for sightseeing.
What to pack for Chascomús in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Chascomús sees daytime highs around 21°C and nights near 11°C. Pack sun protection. Worth having: light clothes and rain gear. About 24 days see rain.
Sea temperature near Chascomús in Spring
The nearest coast averages about 16°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 66 km away) is warmest in January at about 23°C and coldest in July near 11°C.
It's comfortable for a long swim from Nov 28 to Apr 4 — about 4.2 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 23 | 23 | 22 | 19 | 16 | 13 | 11 | 11 | 13 | 16 | 19 | 22 |
| Comfort | Refreshing | Refreshing | Refreshing | Cool | Cool | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 23 | Refreshing |
| Feb | 23 | Refreshing |
| Mar | 22 | Refreshing |
| Apr | 19 | Cool |
| May | 16 | Cool |
| Jun | 13 | Bracing |
| Jul | 11 | Bracing |
| Aug | 11 | Bracing |
| Sep | 13 | Bracing |
| Oct | 16 | Cool |
| Nov | 19 | Cool |
| Dec | 22 | Refreshing |
UV index in Chascomús in Spring
Clear-sky midday UV across spring averages around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Chascomús peaks around January 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 12 | 11 | 10 | 6 | 3 | 2 | 3 | 4 | 6 | 7 | 11 | 12 |
| Level | Extreme | Extreme | Very high | High | Moderate | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 12 | Extreme |
| Feb | 11 | Extreme |
| Mar | 10 | Very high |
| Apr | 6 | High |
| May | 3 | Moderate |
| Jun | 2 | Moderate |
| Jul | 3 | Moderate |
| Aug | 4 | Moderate |
| Sep | 6 | High |
| Oct | 7 | Very high |
| Nov | 11 | Extreme |
| Dec | 12 | Extreme |
Where is Chascomús?
Chascomús sits at 35.6°S, 58.0°W, 19 m above sea level, in Argentina. The nearest listed city is General Belgrano, 48 km away.
Topography around Chascomús
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Chascomús.
Within 3 km, the terrain around Chascomús has only modest variations in elevation — a maximum elevation change of 23 m around an average of 9 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 33 m; within 80 km, only modest variations in elevation — a maximum elevation change of 56 m.
The land around Chascomús is covered by water (46%) and artificial surfaces (23%) within 3 km, grassland (49%) and cropland (36%) within 16 km, and grassland (58%) and cropland (31%) 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 Chascomús (-35.5768°, -58.0121°, elevation 19 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.