Río Segundo in Fall
In fall (March, April and May), Río Segundo sees average daytime highs around 23°C and overnight lows near 13°C, with 179 mm of rain over about 21 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 28°C in early March to 18°C by late May. The sky is clear or mostly clear about 48% of the time across fall, and the air most often feels dry.
Fall is Río Segundo's 2nd-best season to visit on our travel score. For the whole year in context, see Río Segundo's year-round climate.
- Avg daytime high
- 23°C
- 3rd-warmest season
- Avg overnight low
- 13°C
- Rainfall
- 179 mm
- 21 wet days
- Avg wind
- 10 km/h
- Travel score
- 7.3
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in Río Segundo in Fall
Over the season highs ease from about 28°C in early March to 18°C by late May.
A typical fall day in Río Segundo reaches about 23°C and drops to 13°C overnight. The warmest of the three months is March, the coolest May.
Río Segundo weather by month
How the three fall months (March, April and May) 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° | 108 | 10.1 | 13.8 | 5.3 |
| Feb | 28° / 18° | 89 | 9.8 | 13.2 | 6.3 |
| Mar | 26° / 16° | 89 | 9.2 | 12.2 | 7.0 |
| Apr | 23° / 13° | 61 | 7 | 11.2 | 7.6 |
| May | 20° / 9° | 29 | 4.3 | 10.4 | 7.2 |
| Jun | 17° / 6° | 15 | 3 | 10 | 6.5 |
| Jul | 16° / 5° | 12 | 2.5 | 10.1 | 6.5 |
| Aug | 19° / 7° | 15 | 2.4 | 10.8 | 7.7 |
| Sep | 22° / 9° | 30 | 4.4 | 11.8 | 8.0 |
| Oct | 25° / 13° | 68 | 8.2 | 12.8 | 7.4 |
| Nov | 28° / 16° | 83 | 9.7 | 13.6 | 6.5 |
| Dec | 30° / 18° | 102 | 10.8 | 14 | 5.3 |
Cloud cover in Fall
The sky is clear or mostly clear about 48% of the time across fall.
Chance of precipitation in Fall
Río Segundo gets around 179 mm of rain over 21 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 10 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 42 min in early March to 10 h 06 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 3.9 kWh/m².
Hazard calendar for Río Segundo
In fall, Río Segundo overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Río Segundo's rainy season runs October–April, when most of the year's rain falls.
Is fall a good time to visit Río Segundo?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is one of the better times to visit Río Segundo for general sightseeing.
What to pack for Río Segundo in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Río Segundo sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 21 days see rain.
UV index in Río Segundo in Fall
Clear-sky midday UV across fall averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Río Segundo peaks around January 19 at about 14 (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) | 14 | 13 | 11 | 6 | 4 | 3 | 4 | 5 | 7 | 10 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | High | Moderate | Moderate | Moderate | Moderate | High | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 13 | Extreme |
| Mar | 11 | Extreme |
| Apr | 6 | High |
| May | 4 | Moderate |
| Jun | 3 | Moderate |
| Jul | 4 | Moderate |
| Aug | 5 | Moderate |
| Sep | 7 | High |
| Oct | 10 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Where is Río Segundo?
Río Segundo sits at 31.7°S, 63.9°W, 343 m above sea level, in Argentina. The nearest listed city is Pilar, 4.0 km away.
Topography around Río Segundo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Río Segundo.
Within 3 km, the terrain around Río Segundo has only modest variations in elevation — a maximum elevation change of 28 m around an average of 339 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 96 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,998 m.
The land around Río Segundo is covered by cropland (41%) and grassland (29%) within 3 km, cropland (91%) within 16 km, and cropland (74%) 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 Río Segundo (-31.6501°, -63.9117°, elevation 343 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.