Rosario in Spring
In spring (September, October and November), Rosario sees average daytime highs around 24°C and overnight lows near 13°C, with 287 mm of rain over about 24 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs climb from about 20°C in early September to 27°C by late November. The sky is clear or mostly clear about 46% of the time across spring, and the air most often feels dry.
Spring is Rosario's best season of the year to visit on our travel score. For the whole year in context, see Rosario's year-round climate.
- Avg daytime high
- 24°C
- 2nd-warmest season
- Avg overnight low
- 13°C
- Rainfall
- 287 mm
- 24 wet days
- Avg wind
- 12 km/h
- Travel score
- 7.1
- best season of the year
- Months
- Sep · Oct · Nov
Temperature in Rosario in Spring
Over the season highs climb from about 20°C in early September to 27°C by late November.
A typical spring day in Rosario reaches about 24°C and drops to 13°C overnight. The warmest of the three months is November, the coolest September.
Rosario 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 | 30° / 19° | 102 | 8.1 | 13.9 | 5.5 |
| Feb | 29° / 18° | 111 | 8.5 | 13.2 | 6.0 |
| Mar | 27° / 17° | 126 | 7.6 | 12.3 | 7.1 |
| Apr | 23° / 13° | 103 | 7.9 | 11.2 | 7.4 |
| May | 19° / 10° | 66 | 6 | 10.3 | 6.8 |
| Jun | 16° / 7° | 40 | 4.6 | 9.9 | 5.9 |
| Jul | 16° / 6° | 36 | 5 | 10 | 5.6 |
| Aug | 18° / 8° | 53 | 4.6 | 10.8 | 6.9 |
| Sep | 21° / 10° | 61 | 5.8 | 11.8 | 7.2 |
| Oct | 24° / 13° | 111 | 9.7 | 12.8 | 7.1 |
| Nov | 26° / 15° | 115 | 8.3 | 13.7 | 7.1 |
| Dec | 29° / 18° | 104 | 8.6 | 14.1 | 6.0 |
Cloud cover in Spring
The sky is clear or mostly clear about 46% of the time across spring.
Chance of precipitation in Spring
Rosario gets around 287 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 12 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 18 min in early September to 14 hours 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 5.8 kWh/m².
Is spring a good time to visit Rosario?
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 one of the better times to visit Rosario for general sightseeing.
What to pack for Rosario in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Rosario sees daytime highs around 24°C and nights near 13°C. Pack sun protection. Worth having: light clothes and rain gear. About 24 days see rain.
UV index in Rosario in Spring
Clear-sky midday UV across spring averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Rosario peaks around January 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 3 (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) | 13 | 12 | 10 | 6 | 4 | 3 | 3 | 4 | 6 | 9 | 11 | 12 |
| Level | Extreme | Extreme | Extreme | High | Moderate | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 12 | Extreme |
| Mar | 10 | Extreme |
| Apr | 6 | High |
| May | 4 | Moderate |
| Jun | 3 | Moderate |
| Jul | 3 | Moderate |
| Aug | 4 | Moderate |
| Sep | 6 | High |
| Oct | 9 | Very high |
| Nov | 11 | Extreme |
| Dec | 12 | Extreme |
Air quality in Rosario in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Rosario is worst in August — around 20 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (April, 7 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) | 9 | 8 | 8 | 7 | 8 | 10 | 13 | 20 | 19 | 10 | 8 | 8 |
| Level | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 9 | Good |
| Feb | 8 | Good |
| Mar | 8 | Good |
| Apr | 7 | Good |
| May | 8 | Good |
| Jun | 10 | Good |
| Jul | 13 | Moderate |
| Aug | 20 | Moderate |
| Sep | 19 | Moderate |
| Oct | 10 | Good |
| Nov | 8 | Good |
| Dec | 8 | Good |
Where is Rosario?
Rosario sits at 32.9°S, 60.6°W, 38 m above sea level, in Argentina. The nearest listed city is Gobernador Gálvez, 9.0 km away.
Topography around Rosario
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Rosario.
Within 3 km, the terrain around Rosario has only modest variations in elevation — a maximum elevation change of 41 m around an average of 19 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 57 m; within 80 km, only modest variations in elevation — a maximum elevation change of 121 m.
The land around Rosario is covered by artificial surfaces (53%) and water (21%) within 3 km, wetland (30%) and grassland (20%) within 16 km, and cropland (58%) and wetland (24%) 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 Rosario (-32.9468°, -60.6393°, elevation 38 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.