Climate and average weather in Montevideo
In Montevideo, the summers are warm, fairly dry, and mostly clear and the winters are cool, breezy, and partly cloudy.
Over the course of the year, the temperature in Montevideo typically varies from 10°C to 24°C, and is rarely below 7°C or above 26°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 Montevideo for warm-weather activities is from early November to late April.
- Hottest
- Jan
- 24°
- Coldest
- Jul
- 10°
- Wettest
- Oct
- 111 mm
- Driest
- Jan
- 67 mm
- Rain / yr
- 1108 mm
- 95 wet days
- Daylight
- 9.7–14.3 h
- shortest–longest
- Elevation
- 34 m
- 34.9°S
- Clearest
- Jan
- 39% cloud
Montevideo is capital and largest city of Uruguay.
- Air quality
- Moderate
- PM2.5 12 µg/m³ · 2018
- Density
- 1,741/km²
- people per km²
- Founded
- 1726
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Montevideo 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 November to late April.
Temperature through the year
Daily average highs and lows in Montevideo, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
The hot season lasts 4.1 months, from November 30 to April 2, with daily high temperatures above 21°C. The hottest month of the year in Montevideo is January, with an average high of 24°C and low of 21°C.
The cool season lasts 3.3 months, from June 5 to September 13, with daily high temperatures below 14°C. The coldest month of the year in Montevideo is July, with an average low of 10°C and high of 12°C.
Days typically run about 3°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 24 | 22 | 19 | 16 | 14 | 12 | 13 | 15 | 17 | 20 | 22 |
| Avg low (°C) | 21 | 21 | 20 | 17 | 14 | 11 | 10 | 11 | 12 | 14 | 17 | 19 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 24 | 21 |
| Feb | 24 | 21 |
| Mar | 22 | 20 |
| Apr | 19 | 17 |
| May | 16 | 14 |
| Jun | 14 | 11 |
| Jul | 12 | 10 |
| Aug | 13 | 11 |
| Sep | 15 | 12 |
| Oct | 17 | 14 |
| Nov | 20 | 17 |
| Dec | 22 | 19 |
Average hourly temperature in Montevideo
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 24°C, and coldest before dawn in July, near 10°C.
Montevideo 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° | 67 | 5.8 | 14.1 | 8.0 |
| Feb | 24° / 21° | 91 | 7.4 | 13.3 | 7.5 |
| Mar | 22° / 20° | 97 | 7.8 | 12.3 | 7.3 |
| Apr | 19° / 17° | 107 | 8.4 | 11.1 | 6.5 |
| May | 16° / 14° | 87 | 7.9 | 10.2 | 5.4 |
| Jun | 14° / 11° | 90 | 8.6 | 9.7 | 4.0 |
| Jul | 12° / 10° | 96 | 8.7 | 9.9 | 3.4 |
| Aug | 13° / 11° | 97 | 8.4 | 10.7 | 3.9 |
| Sep | 15° / 12° | 92 | 8.3 | 11.8 | 4.6 |
| Oct | 17° / 14° | 111 | 8.8 | 12.9 | 5.7 |
| Nov | 20° / 17° | 101 | 7.7 | 13.8 | 6.8 |
| Dec | 22° / 19° | 73 | 6.8 | 14.3 | 7.5 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Montevideo gets about 1108 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.
The wetter season lasts 3.9 months, from around May 21 to Sep 17, peaking in June at about 30% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 15.
October is the wettest month by volume, with 111 mm over about 9 wet days; January is the driest, with 67 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 19 | 26 | 26 | 27 | 25 | 29 | 28 | 28 | 27 | 28 | 26 | 22 |
| Rain days | 6 | 7 | 8 | 8 | 8 | 9 | 9 | 8 | 8 | 9 | 8 | 7 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 19 | 6 |
| Feb | 26 | 7 |
| Mar | 26 | 8 |
| Apr | 27 | 8 |
| May | 25 | 8 |
| Jun | 29 | 9 |
| Jul | 28 | 9 |
| Aug | 28 | 8 |
| Sep | 27 | 8 |
| Oct | 28 | 9 |
| Nov | 26 | 8 |
| Dec | 22 | 7 |
Monthly rainfall
Over a full year, Montevideo collects about 1108 mm of rain across 95 wet days — roughly 92 mm in an average month.
It doesn’t fall evenly. October is the wettest month with 111 mm, while January is the driest at just 67 mm. The three wettest months alone bring about 29% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 67 | 91 | 97 | 107 | 87 | 90 | 96 | 97 | 92 | 111 | 101 | 73 |
| Rain days | 6 | 7 | 8 | 8 | 8 | 9 | 9 | 8 | 8 | 9 | 8 | 7 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 67 | 6 |
| Feb | 91 | 7 |
| Mar | 97 | 8 |
| Apr | 107 | 8 |
| May | 87 | 8 |
| Jun | 90 | 9 |
| Jul | 96 | 9 |
| Aug | 97 | 8 |
| Sep | 92 | 8 |
| Oct | 111 | 9 |
| Nov | 101 | 8 |
| Dec | 73 | 7 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Montevideo, 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 October 26 and lasts for 5.3 months, ending around April 5. The clearest month is January, when the sky is clear, mostly clear, or partly cloudy 70% of the time on average.
The cloudier part of the year begins around April 6 and lasts for 6.7 months, ending around October 25. The cloudiest month is July, when it is overcast or mostly cloudy 54% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 70 | 67 | 64 | 55 | 48 | 47 | 46 | 48 | 50 | 53 | 63 | 67 |
| Cloudier (%) | 30 | 33 | 36 | 45 | 52 | 53 | 54 | 52 | 50 | 47 | 37 | 33 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 70 | 30 |
| Feb | 67 | 33 |
| Mar | 64 | 36 |
| Apr | 55 | 45 |
| May | 48 | 52 |
| Jun | 47 | 53 |
| Jul | 46 | 54 |
| Aug | 48 | 52 |
| Sep | 50 | 50 |
| Oct | 53 | 47 |
| Nov | 63 | 37 |
| Dec | 67 | 33 |
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 7, 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 | 11.1 | 10.2 | 9.7 | 9.9 | 10.7 | 11.8 | 12.9 | 13.8 | 14.3 |
| Sunrise (AM) | 6:51 | 7:20 | 7:46 | 8:11 | 8:36 | 8:55 | 8:54 | 8:28 | 7:46 | 7:03 | 6:34 | 6:31 |
| Sunset (PM) | 8:57 | 8:39 | 8:03 | 7:19 | 6:46 | 6:35 | 6:46 | 7:09 | 7:33 | 7:57 | 8:26 | 8:51 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 14.1 | 6:51 | 8:57 |
| Feb | 13.3 | 7:20 | 8:39 |
| Mar | 12.3 | 7:46 | 8:03 |
| Apr | 11.1 | 8:11 | 7:19 |
| May | 10.2 | 8:36 | 6:46 |
| Jun | 9.7 | 8:55 | 6:35 |
| Jul | 9.9 | 8:54 | 6:46 |
| Aug | 10.7 | 8:28 | 7:09 |
| Sep | 11.8 | 7:46 | 7:33 |
| Oct | 12.9 | 7:03 | 7:57 |
| Nov | 13.8 | 6:34 | 8:26 |
| Dec | 14.3 | 6:31 | 8:51 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Montevideo averages about 13 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 9 and 18 days.
The sunnier stretch runs 5.2 months, from around Oct 27 to Apr 3. The sunniest month is January, with roughly 17 sunny days (bright).
The greyest month is May, down near 10 sunny days — about 40% fewer than the January peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 17 | 14 | 15 | 12 | 10 | 9 | 10 | 11 | 11 | 12 | 14 | 17 |
| Sky | Bright | Bright | Bright | Mixed | Mixed | Mixed | Mixed | Mixed | Mixed | Mixed | Mixed | Bright |
| Sunny days | Sky | |
|---|---|---|
| Jan | 17 | Bright |
| Feb | 14 | Bright |
| Mar | 15 | Bright |
| Apr | 12 | Mixed |
| May | 10 | Mixed |
| Jun | 9 | Mixed |
| Jul | 10 | Mixed |
| Aug | 11 | Mixed |
| Sep | 11 | Mixed |
| Oct | 12 | Mixed |
| Nov | 14 | Mixed |
| Dec | 17 | Bright |
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 Montevideo, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 5.2 months, from around November 13 to April 18. The muggiest month is February, when the air feels humid, muggy or worse about 77% of the time.
The most comfortable stretch runs from around April 19 to November 12, and July is the most comfortable month — the air is dry or comfortable 100% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 8 | 8 | 16 | 35 | 64 | 88 | 95 | 92 | 86 | 57 | 33 | 18 |
| Comfortable (%) | 16 | 15 | 20 | 30 | 25 | 10 | 5 | 7 | 13 | 33 | 35 | 22 |
| Humid (%) | 27 | 26 | 29 | 27 | 10 | 2 | 0 | 1 | 2 | 10 | 27 | 33 |
| Muggy (%) | 37 | 36 | 30 | 9 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 24 |
| Oppressive (%) | 12 | 14 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| Jan | 8 | 16 | 27 | 37 | 12 |
| Feb | 8 | 15 | 26 | 36 | 14 |
| Mar | 16 | 20 | 29 | 30 | 6 |
| Apr | 35 | 30 | 27 | 9 | 0 |
| May | 64 | 25 | 10 | 0 | 0 |
| Jun | 88 | 10 | 2 | 0 | 0 |
| Jul | 95 | 5 | 0 | 0 | 0 |
| Aug | 92 | 7 | 1 | 0 | 0 |
| Sep | 86 | 13 | 2 | 0 | 0 |
| Oct | 57 | 33 | 10 | 1 | 0 |
| Nov | 33 | 35 | 27 | 5 | 0 |
| Dec | 18 | 22 | 33 | 24 | 3 |
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 Montevideo is steady company: average speeds sit near 22 km/h — breezy — 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) | 22 | 22 | 22 | 22 | 21 | 22 | 23 | 22 | 23 | 23 | 23 | 22 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 22 | breezy |
| Feb | 22 | breezy |
| Mar | 22 | breezy |
| Apr | 22 | breezy |
| May | 21 | breezy |
| Jun | 22 | breezy |
| Jul | 23 | breezy |
| Aug | 22 | breezy |
| Sep | 23 | breezy |
| Oct | 23 | breezy |
| Nov | 23 | breezy |
| Dec | 22 | breezy |
Best time to visit Montevideo
To characterize how pleasant the weather is in Montevideo throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around mid April, Montevideo 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 Montevideo for general outdoor tourist activities is from early November to late April, with a peak score in the third week of January.
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) | 8.0 | 7.5 | 7.3 | 6.5 | 5.4 | 4.0 | 3.4 | 3.9 | 4.6 | 5.7 | 6.8 | 7.5 |
| Rating | ideal | ideal | good | good | fair | fair | poor | fair | fair | good | good | ideal |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 8.0 | ideal |
| Feb | 7.5 | ideal |
| Mar | 7.3 | good |
| Apr | 6.5 | good |
| May | 5.4 | fair |
| Jun | 4.0 | fair |
| Jul | 3.4 | poor |
| Aug | 3.9 | fair |
| Sep | 4.6 | fair |
| Oct | 5.7 | good |
| Nov | 6.8 | good |
| Dec | 7.5 | 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 Montevideo for hot-weather activities is from mid December to mid March, with a peak score in the third 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 Montevideo, 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 24°C), the essentials are light clothes, sun protection and a windbreaker. In the cold season around July (highs near 12°C), pack a warm layer, rain gear and a windbreaker.
In January, Montevideo sees daytime highs around 24°C and nights near 21°C. Pack sun protection. Worth having: light clothes and a windbreaker. About 6 days see rain.
Sea temperature near Montevideo
Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.
The sea offshore is warmest in February at about 24°C and coldest in July near 11°C.
It's comfortable for a long swim from Nov 27 to Apr 9 — about 4.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 23 | 24 | 22 | 19 | 16 | 13 | 11 | 12 | 13 | 16 | 19 | 22 |
| Comfort | Refreshing | Refreshing | Refreshing | Cool | Cool | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 23 | Refreshing |
| Feb | 24 | Refreshing |
| Mar | 22 | Refreshing |
| Apr | 19 | Cool |
| May | 16 | Cool |
| Jun | 13 | Bracing |
| Jul | 11 | Bracing |
| Aug | 12 | Bracing |
| Sep | 13 | Bracing |
| Oct | 16 | Cool |
| Nov | 19 | Cool |
| Dec | 22 | Refreshing |
UV index (midday) in Montevideo 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 Montevideo 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 | 11 | 10 | 6 | 3 | 2 | 3 | 4 | 6 | 8 | 11 | 11 |
| Level | Extreme | Extreme | Very high | High | Moderate | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 12 | Extreme |
| Feb | 11 | 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 | 11 | Extreme |
Average hourly UV index in Montevideo
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 | 2.5 | 0 | 0 | 3.5 | 5.5 | 7 | 8.5 | 9 |
| UV ≥ 6 (h/day) | 6.5 | 6 | 5 | 1 | 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 | 1 |
| May | 2.5 | 0 |
| Jun | 0 | 0 |
| Jul | 0 | 0 |
| Aug | 3.5 | 0 |
| Sep | 5.5 | 0 |
| Oct | 7 | 4 |
| Nov | 8.5 | 6 |
| Dec | 9 | 6.5 |
Air quality in Montevideo by month
Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.
Air quality in Montevideo is worst in August — around 16 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (February, 10 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Montevideo's WHO annual average of 12 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 12 | 10 | 10 | 11 | 12 | 13 | 15 | 16 | 14 | 12 | 10 | 10 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Good |
| Feb | 10 | Good |
| Mar | 10 | Good |
| Apr | 11 | Good |
| May | 12 | Moderate |
| Jun | 13 | Moderate |
| Jul | 15 | Moderate |
| Aug | 16 | Moderate |
| Sep | 14 | Moderate |
| Oct | 12 | Good |
| Nov | 10 | Good |
| Dec | 10 | Good |
Growing season
Montevideo 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. Montevideo banks about 2,441 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) | 375 | 340 | 338 | 244 | 156 | 69 | 27 | 57 | 93 | 172 | 242 | 327 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 375 |
| Feb | 340 |
| Mar | 338 |
| Apr | 244 |
| May | 156 |
| Jun | 69 |
| Jul | 27 |
| Aug | 57 |
| Sep | 93 |
| Oct | 172 |
| Nov | 242 |
| Dec | 327 |
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.
Montevideo receives about 4.7 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.2 and 7.5 kWh/m².
The brighter stretch of the year lasts 5.9 months, from around Sep 24 to Mar 21. The brightest month is December, averaging about 7.5 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) | 7.4 | 6.3 | 5.0 | 3.6 | 2.6 | 2.2 | 2.4 | 3.2 | 4.4 | 5.6 | 6.9 | 7.5 |
| Level | Intense | Intense | Bright | Moderate | Moderate | Moderate | Moderate | Moderate | Bright | Bright | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 7.4 | Intense |
| Feb | 6.3 | Intense |
| Mar | 5.0 | Bright |
| Apr | 3.6 | Moderate |
| May | 2.6 | Moderate |
| Jun | 2.2 | Moderate |
| Jul | 2.4 | Moderate |
| Aug | 3.2 | Moderate |
| Sep | 4.4 | Bright |
| Oct | 5.6 | Bright |
| Nov | 6.9 | Intense |
| Dec | 7.5 | Intense |
Where is Montevideo?
Montevideo sits at 34.9°S, 56.2°W, 34 m above sea level, in Uruguay. The nearest listed city is Paso de Carrasco, 13 km away.
What Montevideo looks like
Topography around Montevideo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Montevideo.
Within 3 km, the terrain around Montevideo has only modest variations in elevation — a maximum elevation change of 56 m around an average of 16 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 130 m; within 80 km, significant variations in elevation — a maximum elevation change of 394 m.
The land around Montevideo is covered by artificial surfaces (55%) and water (38%) within 3 km, water (53%) and artificial surfaces (21%) within 16 km, and water (43%) and grassland (27%) 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 Montevideo (-34.9033°, -56.1882°, elevation 34 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).