Climate and average weather in San Clemente
In San Clemente, the summers are humid, warm, dry, and mostly cloudy and the winters are mild and clear.
Over the course of the year, the temperature in San Clemente typically varies from 15°C to 25°C, and is rarely below 14°C or above 27°C. February is the hottest month of the year, while August is the coldest.
Based on the travel score, the best time of year to visit San Clemente for warm-weather activities is from early January to late December.
- Hottest
- Feb
- 25°
- Coldest
- Aug
- 15°
- Wettest
- Feb
- 4 mm
- Driest
- May
- 0 mm
- Rain / yr
- 13 mm
- 4 wet days
- Daylight
- 11.2–12.8 h
- shortest–longest
- Elevation
- 80 m
- 13.7°S
- Clearest
- Aug
- 15% cloud
San Clemente is locality in Ica Department, Peru.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
San Clemente weather by month, at a glance
The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.
Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early January to late December.
Temperature through the year
Daily average highs and lows in San Clemente, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
Temperatures in San Clemente stay fairly even through the year, without a distinct hot or cool season. The warmest month is February, with an average high of 25°C and low of 22°C; the coolest is August, with an average low of 15°C and high of 19°C.
Days typically run about 4°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 25 | 25 | 23 | 21 | 20 | 19 | 19 | 19 | 20 | 21 | 23 |
| Avg low (°C) | 21 | 22 | 21 | 20 | 18 | 16 | 15 | 15 | 15 | 16 | 17 | 19 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 24 | 21 |
| Feb | 25 | 22 |
| Mar | 25 | 21 |
| Apr | 23 | 20 |
| May | 21 | 18 |
| Jun | 20 | 16 |
| Jul | 19 | 15 |
| Aug | 19 | 15 |
| Sep | 19 | 15 |
| Oct | 20 | 16 |
| Nov | 21 | 17 |
| Dec | 23 | 19 |
Average hourly temperature in San Clemente
A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on February afternoons, near 25°C, and coldest before dawn in August, near 15°C.
San Clemente weather by month
Every month at a glance. Click a month for its detailed page.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 24° / 21° | 4 | 0.9 | 12.7 | 8.1 |
| Feb | 25° / 22° | 4 | 1.3 | 12.5 | 7.8 |
| Mar | 25° / 21° | 3 | 0.8 | 12.1 | 8.1 |
| Apr | 23° / 20° | 1 | 0.3 | 11.7 | 8.7 |
| May | 21° / 18° | 0 | 0 | 11.4 | 8.7 |
| Jun | 20° / 16° | 0 | 0 | 11.2 | 8.4 |
| Jul | 19° / 15° | 0 | 0 | 11.3 | 8.4 |
| Aug | 19° / 15° | 0 | 0 | 11.5 | 8.4 |
| Sep | 19° / 15° | 0 | 0 | 11.9 | 8.3 |
| Oct | 20° / 16° | 0 | 0 | 12.3 | 8.1 |
| Nov | 21° / 17° | 0 | 0 | 12.6 | 8.1 |
| Dec | 23° / 19° | 1 | 0.2 | 12.8 | 8.1 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
San Clemente gets about 13 mm of precipitation a year. On a typical day the chance of rain is mostly dry, and that barely changes with the seasons — rain is spread fairly evenly through the year.
February is the wettest month by volume, with 4 mm over about 1 wet days; May is the driest, with 0 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 3 | 5 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rain days | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 3 | 1 |
| Feb | 5 | 1 |
| Mar | 2 | 1 |
| Apr | 1 | 0 |
| May | 0 | 0 |
| Jun | 0 | 0 |
| Jul | 0 | 0 |
| Aug | 0 | 0 |
| Sep | 0 | 0 |
| Oct | 0 | 0 |
| Nov | 0 | 0 |
| Dec | 0 | 0 |
Monthly rainfall
Over a full year, San Clemente collects about 13 mm of rain across 4 wet days — roughly 1 mm in an average month.
It doesn’t fall evenly. February is the wettest month with 4 mm, while May is the driest at just 0 mm. The three wettest months alone bring about 81% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 4 | 4 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Rain days | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 4 | 1 |
| Feb | 4 | 1 |
| Mar | 3 | 1 |
| Apr | 1 | 0 |
| May | 0 | 0 |
| Jun | 0 | 0 |
| Jul | 0 | 0 |
| Aug | 0 | 0 |
| Sep | 0 | 0 |
| Oct | 0 | 0 |
| Nov | 0 | 0 |
| Dec | 1 | 0 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In San Clemente, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.
The clearer part of the year begins around April 13 and lasts for 6.7 months, ending around November 2. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 94% of the time on average.
The cloudier part of the year begins around November 3 and lasts for 5.3 months, ending around April 12. The cloudiest month is February, when it is overcast or mostly cloudy 73% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 33 | 27 | 32 | 68 | 86 | 88 | 94 | 94 | 90 | 76 | 60 | 43 |
| Cloudier (%) | 67 | 73 | 68 | 32 | 14 | 12 | 6 | 6 | 10 | 24 | 40 | 57 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 33 | 67 |
| Feb | 27 | 73 |
| Mar | 32 | 68 |
| Apr | 68 | 32 |
| May | 86 | 14 |
| Jun | 88 | 12 |
| Jul | 94 | 6 |
| Aug | 94 | 6 |
| Sep | 90 | 10 |
| Oct | 76 | 24 |
| Nov | 60 | 40 |
| Dec | 43 | 57 |
Daylight, sunrise and sunset
Hours of daylight through the year, with sunrise and sunset times.
The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around January 1, brings about 12 h 48 min of light; the shortest, around June 2, only 11 h 12 min — a swing of roughly 1 h 36 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.7 | 12.5 | 12.1 | 11.7 | 11.4 | 11.2 | 11.3 | 11.5 | 11.9 | 12.3 | 12.6 | 12.8 |
| Sunrise (AM) | 5:52 | 6:06 | 6:11 | 6:14 | 6:20 | 6:29 | 6:32 | 6:22 | 6:01 | 5:40 | 5:31 | 5:37 |
| Sunset (PM) | 6:36 | 6:33 | 6:17 | 5:56 | 5:42 | 5:41 | 5:48 | 5:55 | 5:57 | 5:59 | 6:09 | 6:25 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 12.7 | 5:52 | 6:36 |
| Feb | 12.5 | 6:06 | 6:33 |
| Mar | 12.1 | 6:11 | 6:17 |
| Apr | 11.7 | 6:14 | 5:56 |
| May | 11.4 | 6:20 | 5:42 |
| Jun | 11.2 | 6:29 | 5:41 |
| Jul | 11.3 | 6:32 | 5:48 |
| Aug | 11.5 | 6:22 | 5:55 |
| Sep | 11.9 | 6:01 | 5:57 |
| Oct | 12.3 | 5:40 | 5:59 |
| Nov | 12.6 | 5:31 | 6:09 |
| Dec | 12.8 | 5:37 | 6:25 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
San Clemente averages about 16 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 3 and 27 days.
The sunnier stretch runs 6.2 months, from around Apr 16 to Oct 21. The sunniest month is July, with roughly 26 sunny days (brilliant).
The greyest month is February, down near 3 sunny days — about 89% fewer than the July peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 5 | 3 | 4 | 16 | 24 | 23 | 27 | 28 | 24 | 19 | 12 | 8 |
| Sky | Gloomy | Gloomy | Gloomy | Bright | Brilliant | Brilliant | Brilliant | Brilliant | Brilliant | Bright | Mixed | Gloomy |
| Sunny days | Sky | |
|---|---|---|
| Jan | 5 | Gloomy |
| Feb | 3 | Gloomy |
| Mar | 4 | Gloomy |
| Apr | 16 | Bright |
| May | 24 | Brilliant |
| Jun | 23 | Brilliant |
| Jul | 27 | Brilliant |
| Aug | 28 | Brilliant |
| Sep | 24 | Brilliant |
| Oct | 19 | Bright |
| Nov | 12 | Mixed |
| Dec | 8 | Gloomy |
Humidity comfort
Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.
Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.
In San Clemente, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 6.3 months, from around November 18 to May 29. The muggiest month is January, when the air feels humid, muggy or worse about 100% of the time.
The most comfortable stretch runs from around May 30 to November 17, and July is the most comfortable month — the air is dry or comfortable 95% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 7 | 5 | 1 | 0 | 0 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 20 | 72 | 92 | 89 | 91 | 91 | 49 | 2 |
| Humid (%) | 15 | 0 | 5 | 53 | 74 | 27 | 5 | 3 | 4 | 8 | 51 | 78 |
| Muggy (%) | 80 | 88 | 86 | 47 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 20 |
| Oppressive (%) | 4 | 12 | 9 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| Jan | 0 | 0 | 15 | 80 | 4 |
| Feb | 0 | 0 | 0 | 88 | 12 |
| Mar | 0 | 0 | 5 | 86 | 9 |
| Apr | 0 | 0 | 53 | 47 | 1 |
| May | 0 | 20 | 74 | 6 | 0 |
| Jun | 0 | 72 | 27 | 1 | 0 |
| Jul | 3 | 92 | 5 | 0 | 0 |
| Aug | 7 | 89 | 3 | 0 | 0 |
| Sep | 5 | 91 | 4 | 0 | 0 |
| Oct | 1 | 91 | 8 | 0 | 0 |
| Nov | 0 | 49 | 51 | 0 | 0 |
| Dec | 0 | 2 | 78 | 20 | 0 |
Wind
Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.
This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.
Across the year, average wind speed in San Clemente is typically light breeze, near 15 km/h, and varies little with the seasons.
The windier part of the year lasts 6.7 months, from around May 28 to Dec 18. The windiest month is September, averaging about 17 km/h (light breeze).
The calmer part of the year runs from around Dec 19 to May 27, with February the calmest month at about 12 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 13 | 12 | 12 | 14 | 15 | 15 | 16 | 16 | 17 | 16 | 16 | 15 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 13 | light breeze |
| Feb | 12 | light breeze |
| Mar | 12 | light breeze |
| Apr | 14 | light breeze |
| May | 15 | light breeze |
| Jun | 15 | light breeze |
| Jul | 16 | light breeze |
| Aug | 16 | light breeze |
| Sep | 17 | light breeze |
| Oct | 16 | light breeze |
| Nov | 16 | light breeze |
| Dec | 15 | light breeze |
Best time to visit San Clemente
To characterize how pleasant the weather is in San Clemente throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around late December, San Clemente is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.
Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.
The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, San Clemente suits general outdoor tourist activities for most of the year, with a peak score in the first week of May.
The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Travel score (0–10) | 8.1 | 7.8 | 8.1 | 8.7 | 8.7 | 8.5 | 8.4 | 8.4 | 8.3 | 8.1 | 8.1 | 8.1 |
| Rating | ideal | ideal | ideal | ideal | ideal | ideal | ideal | ideal | ideal | ideal | ideal | ideal |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 8.1 | ideal |
| Feb | 7.8 | ideal |
| Mar | 8.1 | ideal |
| Apr | 8.7 | ideal |
| May | 8.7 | ideal |
| Jun | 8.5 | ideal |
| Jul | 8.4 | ideal |
| Aug | 8.4 | ideal |
| Sep | 8.3 | ideal |
| Oct | 8.1 | ideal |
| Nov | 8.1 | ideal |
| Dec | 8.1 | ideal |
The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit San Clemente for hot-weather activities is from mid December to mid May, with a peak score in the last week of March.
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
What to pack for San Clemente, by month
Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.
For a warm-season trip around February (highs near 25°C), the essentials are light clothes and sun protection. In the cold season around August (highs near 19°C), pack sun protection.
In February, San Clemente sees daytime highs around 25°C and nights near 22°C. Pack sun protection. Worth having: light clothes.
Sea temperature near San Clemente
Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.
The sea at the nearest coast (about 25 km away) is warmest in February at about 21°C and coldest in September near 16°C.
It's comfortable for a long swim from Jan 9 to Apr 1 — about 2.7 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 20 | 21 | 21 | 19 | 19 | 18 | 17 | 17 | 16 | 17 | 18 | 19 |
| Comfort | Refreshing | Refreshing | Refreshing | Cool | Cool | Cool | Cool | Cool | Cool | Cool | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 20 | Refreshing |
| Feb | 21 | Refreshing |
| Mar | 21 | Refreshing |
| Apr | 19 | Cool |
| May | 19 | Cool |
| Jun | 18 | Cool |
| Jul | 17 | Cool |
| Aug | 17 | Cool |
| Sep | 16 | Cool |
| Oct | 17 | Cool |
| Nov | 18 | Cool |
| Dec | 19 | Cool |
UV index (midday) in San Clemente by month
Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.
Under clear skies, the midday UV index in San Clemente peaks around February 13 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 9 (very 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 | 17 | 14 | 13 | 10 | 9 | 9 | 11 | 12 | 14 | 14 | 14 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 17 | Extreme |
| Mar | 14 | Extreme |
| Apr | 13 | Extreme |
| May | 10 | Extreme |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 14 | Extreme |
| Nov | 14 | Extreme |
| Dec | 14 | Extreme |
Average hourly UV index in San Clemente
Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.
The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
UV falls off far faster than brightness as the sun drops, so even in February the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 7 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV ≥ 3 (h/day) | 9 | 8.5 | 8.5 | 7.5 | 7 | 6.5 | 6.5 | 7.5 | 8 | 8 | 8.5 | 8.5 |
| UV ≥ 6 (h/day) | 7 | 7 | 6.5 | 6 | 5 | 4 | 4 | 5 | 6 | 6.5 | 6.5 | 7 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 9 | 7 |
| Feb | 8.5 | 7 |
| Mar | 8.5 | 6.5 |
| Apr | 7.5 | 6 |
| May | 7 | 5 |
| Jun | 6.5 | 4 |
| Jul | 6.5 | 4 |
| Aug | 7.5 | 5 |
| Sep | 8 | 6 |
| Oct | 8 | 6.5 |
| Nov | 8.5 | 6.5 |
| Dec | 8.5 | 7 |
Growing season
San Clemente is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Frost nights | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 100 | 0 |
| Feb | 100 | 0 |
| Mar | 100 | 0 |
| Apr | 100 | 0 |
| May | 100 | 0 |
| Jun | 100 | 0 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 100 | 0 |
| Oct | 100 | 0 |
| Nov | 100 | 0 |
| Dec | 100 | 0 |
Growing degree days
Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. San Clemente banks about 3,526 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 384 | 371 | 401 | 340 | 295 | 242 | 224 | 213 | 213 | 241 | 269 | 332 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 384 |
| Feb | 371 |
| Mar | 401 |
| Apr | 340 |
| May | 295 |
| Jun | 242 |
| Jul | 224 |
| Aug | 213 |
| Sep | 213 |
| Oct | 241 |
| Nov | 269 |
| Dec | 332 |
Solar energy
Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.
Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.
San Clemente receives about 6.4 kWh/m² a day of solar energy on average — intense — with a clear seasonal swing between 5.0 and 7.8 kWh/m².
The brighter stretch of the year lasts 6.0 months, from around Aug 31 to Mar 1. The brightest month is November, averaging about 7.7 kWh/m² (intense).
The dimmest month is June, down near 5.1 kWh/m² — roughly 34% less than the November peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.8 | 6.4 | 6.4 | 6.2 | 5.5 | 5.0 | 5.3 | 6.0 | 6.9 | 7.6 | 7.8 | 7.4 |
| Level | Intense | Intense | Intense | Intense | Bright | Bright | Bright | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 6.8 | Intense |
| Feb | 6.4 | Intense |
| Mar | 6.4 | Intense |
| Apr | 6.2 | Intense |
| May | 5.5 | Bright |
| Jun | 5.0 | Bright |
| Jul | 5.3 | Bright |
| Aug | 6.0 | Intense |
| Sep | 6.9 | Intense |
| Oct | 7.6 | Intense |
| Nov | 7.8 | Intense |
| Dec | 7.4 | Intense |
Where is San Clemente?
San Clemente sits at 13.7°S, 76.2°W, 80 m above sea level, in Peru. The nearest listed city is Pisco, 8.0 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 91 m around an average of 70 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 333 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,478 m.
The land around San Clemente is covered by bare terrain (31%) and shrubs (20%) within 3 km, bare terrain (37%) and water (25%) within 16 km, and bare terrain (47%) and water (34%) within 80 km.
Peru travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B / C
- 220 V · 60 Hz
- Prices
- ≈ 51% of US
- price level, 2025
- GDP per capita
- $9,684
- 2025
- Happiness
- 6.0 / 10
- World Happiness, 2025
- Safe drinking water
- 49%
- of population, 2024
- Homicide rate
- 8.6
- per 100k, 2021
- Road deaths
- 13.6
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Moderate
- EF EPI 519
- 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 (-13.6667°, -76.15°, elevation 80 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).