Climate and average weather in San Carlos
In San Carlos, the summers are warm, showery, and mostly clear and the winters are cool and partly cloudy.
Over the course of the year, the temperature in San Carlos typically varies from 7°C to 26°C, and is rarely below 3°C or above 31°C. January is the hottest month of the year, while July is the coldest.
Based on the travel score, the best time of year to visit San Carlos for warm-weather activities is from early October to late May.
- Hottest
- Jan
- 26°
- Coldest
- Jul
- 7°
- Wettest
- Apr
- 104 mm
- Driest
- Jan
- 78 mm
- Rain / yr
- 1099 mm
- 104 wet days
- Daylight
- 9.7–14.3 h
- shortest–longest
- Elevation
- 28 m
- 34.8°S
- Clearest
- Jan
- 47% cloud
San Carlos is city in the Maldonado Department of southern Uruguay.
- Density
- 2,753/km²
- people per km²
- Founded
- 1763
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
San Carlos 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 October to late May.
Temperature through the year
Daily average highs and lows in San Carlos, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
The hot season lasts 3.9 months, from November 29 to March 26, with daily high temperatures above 23°C. The hottest month of the year in San Carlos is January, with an average high of 26°C and low of 18°C.
The cool season lasts 3.4 months, from May 28 to September 8, with daily high temperatures below 17°C. The coldest month of the year in San Carlos is July, with an average low of 7°C and high of 14°C.
Days typically run about 8°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 26 | 26 | 24 | 21 | 18 | 15 | 14 | 16 | 17 | 19 | 22 | 25 |
| Avg low (°C) | 18 | 18 | 17 | 14 | 11 | 9 | 7 | 8 | 9 | 12 | 14 | 16 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 26 | 18 |
| Feb | 26 | 18 |
| Mar | 24 | 17 |
| Apr | 21 | 14 |
| May | 18 | 11 |
| Jun | 15 | 9 |
| Jul | 14 | 7 |
| Aug | 16 | 8 |
| Sep | 17 | 9 |
| Oct | 19 | 12 |
| Nov | 22 | 14 |
| Dec | 25 | 16 |
Average hourly temperature in San Carlos
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 January afternoons, near 26°C, and coldest before dawn in July, near 7°C.
San Carlos 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 | 26° / 18° | 78 | 8.3 | 14.1 | 7.1 |
| Feb | 26° / 18° | 99 | 9 | 13.3 | 6.8 |
| Mar | 24° / 17° | 92 | 9 | 12.3 | 7.2 |
| Apr | 21° / 14° | 104 | 8.9 | 11.2 | 6.7 |
| May | 18° / 11° | 83 | 7.9 | 10.2 | 6.0 |
| Jun | 15° / 9° | 91 | 8.7 | 9.7 | 4.7 |
| Jul | 14° / 7° | 94 | 9 | 9.9 | 4.3 |
| Aug | 16° / 8° | 95 | 8.5 | 10.7 | 5.1 |
| Sep | 17° / 9° | 90 | 8.5 | 11.8 | 5.6 |
| Oct | 19° / 12° | 102 | 9.7 | 12.9 | 6.3 |
| Nov | 22° / 14° | 90 | 8.3 | 13.8 | 7.0 |
| Dec | 25° / 16° | 82 | 8.5 | 14.3 | 7.3 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
San Carlos gets about 1099 mm of precipitation a year. On a typical day the chance of rain is some rain, and that barely changes with the seasons — rain is spread fairly evenly through the year.
April is the wettest month by volume, with 104 mm over about 9 wet days; January is the driest, with 78 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 28 | 32 | 29 | 29 | 25 | 29 | 29 | 28 | 28 | 30 | 28 | 27 |
| Rain days | 8 | 9 | 9 | 9 | 8 | 9 | 9 | 9 | 9 | 10 | 8 | 9 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 28 | 8 |
| Feb | 32 | 9 |
| Mar | 29 | 9 |
| Apr | 29 | 9 |
| May | 25 | 8 |
| Jun | 29 | 9 |
| Jul | 29 | 9 |
| Aug | 28 | 9 |
| Sep | 28 | 9 |
| Oct | 30 | 10 |
| Nov | 28 | 8 |
| Dec | 27 | 9 |
Monthly rainfall
Over a full year, San Carlos collects about 1099 mm of rain across 104 wet days — roughly 92 mm in an average month.
It doesn’t fall evenly. April is the wettest month with 104 mm, while January is the driest at just 78 mm. The three wettest months alone bring about 28% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 78 | 99 | 92 | 104 | 83 | 91 | 94 | 95 | 90 | 102 | 90 | 82 |
| Rain days | 8 | 9 | 9 | 9 | 8 | 9 | 9 | 9 | 9 | 10 | 8 | 9 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 78 | 8 |
| Feb | 99 | 9 |
| Mar | 92 | 9 |
| Apr | 104 | 9 |
| May | 83 | 8 |
| Jun | 91 | 9 |
| Jul | 94 | 9 |
| Aug | 95 | 9 |
| Sep | 90 | 9 |
| Oct | 102 | 10 |
| Nov | 90 | 8 |
| Dec | 82 | 9 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In San Carlos, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.
The clearer part of the year begins around November 4 and lasts for 5.0 months, ending around April 5. The clearest month is January, when the sky is clear, mostly clear, or partly cloudy 62% of the time on average.
The cloudier part of the year begins around April 6 and lasts for 7.0 months, ending around November 3. The cloudiest month is July, when it is overcast or mostly cloudy 58% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 62 | 57 | 56 | 49 | 45 | 43 | 42 | 44 | 45 | 48 | 55 | 59 |
| Cloudier (%) | 38 | 43 | 44 | 51 | 55 | 57 | 58 | 56 | 55 | 52 | 45 | 41 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 62 | 38 |
| Feb | 57 | 43 |
| Mar | 56 | 44 |
| Apr | 49 | 51 |
| May | 45 | 55 |
| Jun | 43 | 57 |
| Jul | 42 | 58 |
| Aug | 44 | 56 |
| Sep | 45 | 55 |
| Oct | 48 | 52 |
| Nov | 55 | 45 |
| Dec | 59 | 41 |
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 14 h 18 min of light; the shortest, around June 8, only 9 h 42 min — a swing of roughly 4 h 36 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 14.1 | 13.3 | 12.3 | 11.2 | 10.2 | 9.7 | 9.9 | 10.7 | 11.8 | 12.9 | 13.8 | 14.3 |
| Sunrise (AM) | 6:46 | 7:15 | 7:41 | 8:06 | 8:30 | 8:50 | 8:49 | 8:23 | 7:40 | 6:58 | 6:29 | 6:26 |
| Sunset (PM) | 8:52 | 8:33 | 7:57 | 7:14 | 6:41 | 6:30 | 6:42 | 7:04 | 7:28 | 7:51 | 8:21 | 8:46 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 14.1 | 6:46 | 8:52 |
| Feb | 13.3 | 7:15 | 8:33 |
| Mar | 12.3 | 7:41 | 7:57 |
| Apr | 11.2 | 8:06 | 7:14 |
| May | 10.2 | 8:30 | 6:41 |
| Jun | 9.7 | 8:50 | 6:30 |
| Jul | 9.9 | 8:49 | 6:42 |
| Aug | 10.7 | 8:23 | 7:04 |
| Sep | 11.8 | 7:40 | 7:28 |
| Oct | 12.9 | 6:58 | 7:51 |
| Nov | 13.8 | 6:29 | 8:21 |
| Dec | 14.3 | 6:26 | 8:46 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
San Carlos averages about 10 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 7 and 14 days.
The sunnier stretch runs 5.6 months, from around Oct 17 to Apr 3. The sunniest month is December, with roughly 13 sunny days (mixed).
The greyest month is May, down near 8 sunny days — about 37% fewer than the December peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 13 | 11 | 12 | 10 | 9 | 8 | 8 | 10 | 9 | 10 | 12 | 14 |
| Sky | Mixed | Mixed | Mixed | Mixed | Mixed | Mixed | Mixed | Mixed | Mixed | Mixed | Mixed | Mixed |
| Sunny days | Sky | |
|---|---|---|
| Jan | 13 | Mixed |
| Feb | 11 | Mixed |
| Mar | 12 | Mixed |
| Apr | 10 | Mixed |
| May | 9 | Mixed |
| Jun | 8 | Mixed |
| Jul | 8 | Mixed |
| Aug | 10 | Mixed |
| Sep | 9 | Mixed |
| Oct | 10 | Mixed |
| Nov | 12 | Mixed |
| Dec | 14 | Mixed |
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 Carlos, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 4.9 months, from around November 19 to April 17. The muggiest month is February, when the air feels humid, muggy or worse about 69% of the time.
The most comfortable stretch runs from around April 18 to November 18, and July is the most comfortable month — the air is dry or comfortable 99% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 13 | 13 | 20 | 44 | 69 | 86 | 89 | 85 | 82 | 62 | 44 | 26 |
| Comfortable (%) | 23 | 18 | 22 | 26 | 20 | 11 | 10 | 12 | 14 | 27 | 31 | 26 |
| Humid (%) | 29 | 29 | 29 | 21 | 11 | 3 | 1 | 3 | 3 | 11 | 22 | 31 |
| Muggy (%) | 29 | 32 | 25 | 9 | 1 | 0 | 0 | 0 | 0 | 1 | 4 | 16 |
| Oppressive (%) | 6 | 8 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| Jan | 13 | 23 | 29 | 29 | 6 |
| Feb | 13 | 18 | 29 | 32 | 8 |
| Mar | 20 | 22 | 29 | 25 | 3 |
| Apr | 44 | 26 | 21 | 9 | 0 |
| May | 69 | 20 | 11 | 1 | 0 |
| Jun | 86 | 11 | 3 | 0 | 0 |
| Jul | 89 | 10 | 1 | 0 | 0 |
| Aug | 85 | 12 | 3 | 0 | 0 |
| Sep | 82 | 14 | 3 | 0 | 0 |
| Oct | 62 | 27 | 11 | 1 | 0 |
| Nov | 44 | 31 | 22 | 4 | 0 |
| Dec | 26 | 26 | 31 | 16 | 1 |
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.
Wind in San Carlos is steady company: average speeds sit near 16 km/h — light breeze — in every month of the year, with no meaningful windy or calm season.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 16 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 17 | 16 | 16 | 16 |
| 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 | 16 | light breeze |
| Feb | 15 | light breeze |
| Mar | 15 | light breeze |
| Apr | 15 | light breeze |
| May | 15 | light breeze |
| Jun | 16 | light breeze |
| Jul | 16 | light breeze |
| Aug | 16 | light breeze |
| Sep | 17 | light breeze |
| Oct | 16 | light breeze |
| Nov | 16 | light breeze |
| Dec | 16 | light breeze |
Best time to visit San Carlos
To characterize how pleasant the weather is in San Carlos throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around mid May, San Carlos 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, the best time of year to visit San Carlos for general outdoor tourist activities is from early October to mid May, with a peak score in the first week of December.
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) | 7.0 | 6.8 | 7.2 | 6.7 | 6.0 | 4.7 | 4.3 | 5.1 | 5.6 | 6.3 | 7.0 | 7.3 |
| Rating | good | good | good | good | good | fair | fair | fair | good | good | good | good |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 7.0 | good |
| Feb | 6.8 | good |
| Mar | 7.2 | good |
| Apr | 6.7 | good |
| May | 6.0 | good |
| Jun | 4.7 | fair |
| Jul | 4.3 | fair |
| Aug | 5.1 | fair |
| Sep | 5.6 | good |
| Oct | 6.3 | good |
| Nov | 7.0 | good |
| Dec | 7.3 | good |
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 Carlos for hot-weather activities is from late November to late March, with a peak score in the second week of January.
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 Carlos, 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 January (highs near 26°C), the essentials are light clothes, rain gear and sun protection. In the cold season around July (highs near 14°C), pack a warm layer and rain gear.
In January, San Carlos sees daytime highs around 26°C and nights near 18°C. Pack sun protection. Worth having: light clothes and rain gear. About 8 days see rain.
Sea temperature near San Carlos
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 21 km away) is warmest in February at about 23°C and coldest in July near 12°C.
It's comfortable for a long swim from Dec 12 to Apr 10 — about 3.9 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 22 | 23 | 22 | 20 | 17 | 14 | 12 | 12 | 13 | 15 | 18 | 20 |
| Comfort | Refreshing | Refreshing | Refreshing | Cool | Cool | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 22 | Refreshing |
| Feb | 23 | Refreshing |
| Mar | 22 | Refreshing |
| Apr | 20 | Cool |
| May | 17 | Cool |
| Jun | 14 | Bracing |
| Jul | 12 | Bracing |
| Aug | 12 | Bracing |
| Sep | 13 | Bracing |
| Oct | 15 | Cool |
| Nov | 18 | Cool |
| Dec | 20 | Refreshing |
UV index (midday) in San Carlos 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 Carlos peaks around January 17 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 12 | 12 | 10 | 6 | 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 | 12 | Extreme |
| Feb | 12 | Extreme |
| Mar | 10 | Very high |
| Apr | 6 | 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 |
Average hourly UV index in San Carlos
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 January the burn window is concentrated in the middle of the day: about 9 hours a day reach index 3 (protection recommended), and 6.5 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 | 7.5 | 5.5 | 2 | 0 | 0 | 4 | 5.5 | 7 | 8.5 | 9 |
| UV ≥ 6 (h/day) | 6.5 | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 6 | 6.5 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 9 | 6.5 |
| Feb | 8.5 | 6 |
| Mar | 7.5 | 5 |
| Apr | 5.5 | 0 |
| May | 2 | 0 |
| Jun | 0 | 0 |
| Jul | 0 | 0 |
| Aug | 4 | 0 |
| Sep | 5.5 | 0 |
| Oct | 7 | 4 |
| Nov | 8.5 | 6 |
| Dec | 9 | 6.5 |
Growing season
San Carlos 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 | 99 | 98 | 99 | 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 | 99 | 0 |
| Jul | 98 | 0 |
| Aug | 99 | 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 Carlos banks about 2,384 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around January.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 375 | 335 | 326 | 229 | 140 | 55 | 25 | 67 | 96 | 172 | 238 | 328 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 375 |
| Feb | 335 |
| Mar | 326 |
| Apr | 229 |
| May | 140 |
| Jun | 55 |
| Jul | 25 |
| Aug | 67 |
| Sep | 96 |
| Oct | 172 |
| Nov | 238 |
| Dec | 328 |
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 Carlos receives about 4.6 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.1 and 7.4 kWh/m².
The brighter stretch of the year lasts 5.8 months, from around Sep 25 to Mar 21. The brightest month is December, averaging about 7.3 kWh/m² (intense).
The dimmest month is June, down near 2.2 kWh/m² — roughly 71% less than the December peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 7.2 | 6.1 | 4.9 | 3.5 | 2.6 | 2.2 | 2.3 | 3.2 | 4.3 | 5.4 | 6.8 | 7.4 |
| Level | Intense | Intense | Bright | Moderate | Moderate | Moderate | Moderate | Moderate | Bright | Bright | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 7.2 | Intense |
| Feb | 6.1 | Intense |
| Mar | 4.9 | Bright |
| Apr | 3.5 | Moderate |
| May | 2.6 | Moderate |
| Jun | 2.2 | Moderate |
| Jul | 2.3 | Moderate |
| Aug | 3.2 | Moderate |
| Sep | 4.3 | Bright |
| Oct | 5.4 | Bright |
| Nov | 6.8 | Intense |
| Dec | 7.4 | Intense |
Where is San Carlos?
San Carlos sits at 34.8°S, 54.9°W, 28 m above sea level, in Uruguay. The nearest listed city is Maldonado, 12 km away.
Topography around San Carlos
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Carlos.
Within 3 km, the terrain around San Carlos has only modest variations in elevation — a maximum elevation change of 42 m around an average of 11 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 266 m; within 80 km, significant variations in elevation — a maximum elevation change of 498 m.
The land around San Carlos is covered by grassland (45%) and trees (22%) within 3 km, grassland (60%) within 16 km, and grassland (42%) and water (37%) within 80 km.
Uruguay travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F / I / L
- 230 V · 50 Hz
- Prices
- ≈ 66% of US
- price level, 2025
- GDP per capita
- $25,216
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Homicide rate
- 11.2
- per 100k, 2023
- Road deaths
- 14.8
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 542
- 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 Carlos (-34.7912°, -54.9182°, elevation 28 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).