San Clemente in Spring
In spring (September, October and November), San Clemente sees average daytime highs around 20°C and overnight lows near 8°C, with 139 mm of rain over about 15 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs climb from about 16°C in early September to 25°C by late November. The sky is clear or mostly clear about 50% of the time across spring, and the air most often feels dry.
Spring is San Clemente's 2nd-best season to visit on our travel score. For the whole year in context, see San Clemente's year-round climate.
- Avg daytime high
- 20°C
- 3rd-warmest season
- Avg overnight low
- 8°C
- Rainfall
- 139 mm
- 15 wet days
- Avg wind
- 9 km/h
- Travel score
- 7.3
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in San Clemente in Spring
Over the season highs climb from about 16°C in early September to 25°C by late November.
A typical spring day in San Clemente reaches about 20°C and drops to 8°C overnight. The warmest of the three months is November, the coolest September.
San Clemente 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° / 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 Spring
The sky is clear or mostly clear about 50% of the time across spring.
Chance of precipitation in Spring
San Clemente gets around 139 mm of rain over 15 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 9 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 6.3 kWh/m².
Hazard calendar for San Clemente
None of San Clemente's seasonal hazards peak in spring. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
San Clemente's rainy season runs May–August, when most of the year's rain falls.
Is spring a good time to visit San Clemente?
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 San Clemente for general sightseeing.
What to pack for San Clemente in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, San Clemente sees daytime highs around 20°C and nights near 8°C. Pack sun protection. Worth having: light clothes and a warm layer. About 15 days see rain.
UV index in San Clemente in Spring
Clear-sky midday UV across spring averages around 8 (very high — sun protection essential). 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 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 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.