San Clemente in Fall
In fall (March, April and May), San Clemente sees average daytime highs around 21°C and overnight lows near 9°C, with 214 mm of rain over about 14 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 27°C in early March to 15°C by late May. The sky is clear or mostly clear about 54% of the time across fall, and the air most often feels dry.
Fall is San Clemente's 3rd-best season to visit on our travel score. For the whole year in context, see San Clemente's year-round climate.
- Avg daytime high
- 21°C
- 2nd-warmest season
- Avg overnight low
- 9°C
- Rainfall
- 214 mm
- 14 wet days
- Avg wind
- 7 km/h
- Travel score
- 7.2
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in San Clemente in Fall
Over the season highs ease from about 27°C in early March to 15°C by late May.
A typical fall day in San Clemente reaches about 21°C and drops to 9°C overnight. The warmest of the three months is March, the coolest May.
San Clemente 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 | 28° / 14° | 5 | 1 | 14.1 | 8.0 |
| Feb | 28° / 13° | 8 | 0.9 | 13.3 | 8.5 |
| Mar | 25° / 12° | 15 | 1.6 | 12.3 | 8.8 |
| Apr | 20° / 9° | 54 | 4.4 | 11.1 | 7.5 |
| May | 16° / 7° | 144 | 8.4 | 10.2 | 5.3 |
| Jun | 14° / 6° | 221 | 12 | 9.6 | 3.7 |
| Jul | 13° / 4° | 160 | 10.2 | 9.8 | 3.8 |
| Aug | 15° / 5° | 131 | 9.3 | 10.7 | 4.6 |
| Sep | 17° / 7° | 73 | 6.8 | 11.8 | 6.0 |
| Oct | 20° / 8° | 47 | 5.3 | 12.9 | 7.2 |
| Nov | 24° / 10° | 19 | 2.4 | 13.9 | 8.6 |
| Dec | 27° / 12° | 17 | 1.7 | 14.4 | 8.6 |
Cloud cover in Fall
The sky is clear or mostly clear about 54% of the time across fall.
Chance of precipitation in Fall
San Clemente gets around 214 mm of rain over 14 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 7 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 48 min in early March to 9 h 48 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 4.3 kWh/m².
Hazard calendar for San Clemente
In fall, San Clemente overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
San Clemente's rainy season runs May–August, when most of the year's rain falls.
Is fall a good time to visit San Clemente?
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 San Clemente for general sightseeing.
What to pack for San Clemente in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, San Clemente sees daytime highs around 21°C and nights near 9°C. Pack sun protection. Worth having: light clothes, a warm layer and rain gear. About 14 days see rain.
UV index in San Clemente in Fall
Clear-sky midday UV across fall averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in San Clemente peaks around January 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 15 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 12 | 9 | 5 | 3 | 2 | 3 | 4 | 6 | 8 | 11 | 12 |
| Level | Extreme | Extreme | Very high | High | Moderate | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 12 | Extreme |
| Mar | 9 | Very high |
| Apr | 5 | High |
| May | 3 | Moderate |
| Jun | 2 | Moderate |
| Jul | 3 | Moderate |
| Aug | 4 | Moderate |
| Sep | 6 | High |
| Oct | 8 | Very high |
| Nov | 11 | Extreme |
| Dec | 12 | Extreme |
Air quality in San Clemente in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in San Clemente is worst in February — around 26 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 12 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) | 18 | 26 | 16 | 19 | 25 | 21 | 22 | 21 | 20 | 16 | 15 | 12 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 18 | Moderate |
| Feb | 26 | Moderate |
| Mar | 16 | Moderate |
| Apr | 19 | Moderate |
| May | 25 | Moderate |
| Jun | 21 | Moderate |
| Jul | 22 | Moderate |
| Aug | 21 | Moderate |
| Sep | 20 | Moderate |
| Oct | 16 | Moderate |
| Nov | 15 | Moderate |
| Dec | 12 | Good |
Where is San Clemente?
San Clemente sits at 35.5°S, 71.5°W, 214 m above sea level, in Chile. The nearest listed city is Colbún, 19 km away.
Topography around San Clemente
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Clemente.
Within 3 km, the terrain around San Clemente has only modest variations in elevation — a maximum elevation change of 55 m around an average of 204 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 596 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,923 m.
The land around San Clemente is covered by cropland (63%) within 3 km, cropland (45%), trees (25%) and grassland (22%) within 16 km, and trees (38%) and grassland (33%) within 80 km.
Chile travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F / L
- 220 V · 50 Hz
- Prices
- ≈ 48% of US
- price level, 2025
- GDP per capita
- $17,995
- 2025
- Happiness
- 6.3 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 6.3
- per 100k, 2023
- Road deaths
- 14.9
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 517
- 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 San Clemente (-35.5378°, -71.487°, elevation 214 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.