Santa Rosa in Spring
In spring (September, October and November), Santa Rosa sees average daytime highs around 30°C and overnight lows near 17°C, with 229 mm of rain over about 26 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs climb from about 27°C in early September to 31°C by late November. The sky is clear or mostly clear about 39% of the time across spring, and the air most often feels dry.
Spring is Santa Rosa's 3rd-best season to visit on our travel score. For the whole year in context, see Santa Rosa's year-round climate.
- Avg daytime high
- 30°C
- 2nd-warmest season
- Avg overnight low
- 17°C
- Rainfall
- 229 mm
- 26 wet days
- Avg wind
- 7 km/h
- Travel score
- 5.5
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Santa Rosa in Spring
Over the season highs climb from about 27°C in early September to 31°C by late November.
A typical spring day in Santa Rosa reaches about 30°C and drops to 17°C overnight. The warmest of the three months is November, the coolest September.
How spring really feels in Santa Rosa
Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
spring sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Santa Rosa 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 | 31° / 22° | 224 | 16.5 | 13.3 | 3.7 |
| Feb | 30° / 21° | 228 | 16.2 | 12.8 | 4.1 |
| Mar | 28° / 20° | 249 | 18.1 | 12.2 | 4.8 |
| Apr | 25° / 17° | 162 | 15.3 | 11.5 | 5.9 |
| May | 22° / 14° | 79 | 11.9 | 10.9 | 6.3 |
| Jun | 20° / 11° | 38 | 7.9 | 10.6 | 6.6 |
| Jul | 21° / 9° | 23 | 5.1 | 10.7 | 7.5 |
| Aug | 25° / 11° | 16 | 3.6 | 11.2 | 8.3 |
| Sep | 28° / 15° | 22 | 4.3 | 11.9 | 7.1 |
| Oct | 30° / 18° | 81 | 9.5 | 12.5 | 5.0 |
| Nov | 31° / 20° | 126 | 11.9 | 13.1 | 4.3 |
| Dec | 31° / 21° | 218 | 15.4 | 13.4 | 3.7 |
Cloud cover in Spring
The sky is clear or mostly clear about 39% of the time across spring.
Chance of precipitation in Spring
Santa Rosa gets around 229 mm of rain over 26 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 7 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 30 min in early September to 13 h 18 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 5.4 kWh/m².
Hazard calendar for Santa Rosa
In spring, Santa Rosa overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Santa Rosa's monsoon runs November–April, when most of the year's rain falls.
Is spring a good time to visit Santa Rosa?
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 Santa Rosa for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Santa Rosa in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Santa Rosa sees daytime highs around 30°C and nights near 17°C. Pack light clothes. Worth having: rain gear and sun protection. About 26 days see rain.
UV index in Santa Rosa in Spring
Clear-sky midday UV across spring averages around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Santa Rosa peaks around January 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 5 (high).
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 | 13 | 9 | 7 | 6 | 5 | 8 | 10 | 8 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | High | Very high | Very high | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 14 | Extreme |
| Mar | 13 | Extreme |
| Apr | 9 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 5 | High |
| Aug | 8 | Very high |
| Sep | 10 | Very high |
| Oct | 8 | Very high |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Air quality in Santa Rosa 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 Santa Rosa is worst in September — around 36 µg/m³ PM2.5 (poor), about 8.2× the cleanest month (May, 4 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) | 8 | 8 | 7 | 5 | 4 | 7 | 8 | 15 | 36 | 32 | 27 | 17 |
| Level | Good | Good | Good | Good | Good | Good | Good | Moderate | Poor | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 8 | Good |
| Mar | 7 | Good |
| Apr | 5 | Good |
| May | 4 | Good |
| Jun | 7 | Good |
| Jul | 8 | Good |
| Aug | 15 | Moderate |
| Sep | 36 | Poor |
| Oct | 32 | Moderate |
| Nov | 27 | Moderate |
| Dec | 17 | Moderate |
Where is Santa Rosa?
Santa Rosa sits at 23.4°S, 64.4°W, 341 m above sea level, in Argentina. The nearest listed city is Pichanal, 23 km away.
Topography around Santa Rosa
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santa Rosa.
Within 3 km, the terrain around Santa Rosa has only modest variations in elevation — a maximum elevation change of 78 m around an average of 352 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 433 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,850 m.
The land around Santa Rosa is covered by cropland (43%) and trees (31%) within 3 km, trees (62%) and cropland (31%) within 16 km, and trees (64%) 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 Santa Rosa (-23.3943°, -64.4251°, elevation 341 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.