Climate and average weather in Montecarlo
In Montecarlo, the summers are muggy, hot, wet, and partly cloudy and the winters are mild and mostly clear.
Over the course of the year, the temperature in Montecarlo typically varies from 12°C to 31°C, and is rarely below 4°C or above 35°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 Montecarlo for warm-weather activities is from early April to early October.
- Hottest
- Jan
- 31°
- Coldest
- Jul
- 12°
- Wettest
- Oct
- 222 mm
- Driest
- Aug
- 97 mm
- Rain / yr
- 1970 mm
- 141 wet days
- Daylight
- 10.3–13.7 h
- shortest–longest
- Elevation
- 197 m
- 26.6°S
- Clearest
- Aug
- 43% cloud
Montecarlo is village and municipality in Misiones province, Argentina.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Montecarlo 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 April to early October.
Temperature through the year
Daily average highs and lows in Montecarlo, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
The hot season lasts 4.5 months, from November 10 to March 27, with daily high temperatures above 29°C. The hottest month of the year in Montecarlo is January, with an average high of 31°C and low of 21°C.
The cool season lasts 2.8 months, from May 14 to August 7, with daily high temperatures below 23°C. The coldest month of the year in Montecarlo is July, with an average low of 12°C and high of 21°C.
Days typically run about 10°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 31 | 30 | 27 | 23 | 21 | 21 | 24 | 26 | 28 | 29 | 31 |
| Avg low (°C) | 21 | 21 | 20 | 17 | 14 | 13 | 12 | 13 | 15 | 17 | 18 | 20 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 31 | 21 |
| Feb | 31 | 21 |
| Mar | 30 | 20 |
| Apr | 27 | 17 |
| May | 23 | 14 |
| Jun | 21 | 13 |
| Jul | 21 | 12 |
| Aug | 24 | 13 |
| Sep | 26 | 15 |
| Oct | 28 | 17 |
| Nov | 29 | 18 |
| Dec | 31 | 20 |
How hot and cold Montecarlo really feels
The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.
On the hottest afternoons, once humidity is folded in, Montecarlo feels like about 34°C (around January 8). About 99 days a year carry some heat stress, peaking in January.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels-like high (°C) | 34 | 33 | 32 | 27 | 23 | 21 | 21 | 24 | 26 | 28 | 30 | 33 |
| Air high (°C) | 31 | 31 | 30 | 27 | 23 | 21 | 21 | 24 | 26 | 28 | 29 | 31 |
| Feels-like low (°C) | 21 | 21 | 20 | 17 | 14 | 13 | 12 | 13 | 15 | 17 | 18 | 20 |
| Air low (°C) | 21 | 21 | 20 | 17 | 14 | 13 | 12 | 13 | 15 | 17 | 18 | 20 |
| Feels-like high (°C) | Air high (°C) | Feels-like low (°C) | Air low (°C) | |
|---|---|---|---|---|
| Jan | 34 | 31 | 21 | 21 |
| Feb | 33 | 31 | 21 | 21 |
| Mar | 32 | 30 | 20 | 20 |
| Apr | 27 | 27 | 17 | 17 |
| May | 23 | 23 | 14 | 14 |
| Jun | 21 | 21 | 13 | 13 |
| Jul | 21 | 21 | 12 | 12 |
| Aug | 24 | 24 | 13 | 13 |
| Sep | 26 | 26 | 15 | 15 |
| Oct | 28 | 28 | 17 | 17 |
| Nov | 30 | 29 | 18 | 18 |
| Dec | 33 | 31 | 20 | 20 |
Average hourly temperature in Montecarlo
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 31°C, and coldest before dawn in July, near 12°C.
Montecarlo 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 | 31° / 21° | 170 | 15.7 | 13.5 | 3.8 |
| Feb | 31° / 21° | 172 | 15.1 | 12.9 | 4.0 |
| Mar | 30° / 20° | 149 | 13 | 12.2 | 4.9 |
| Apr | 27° / 17° | 150 | 10.1 | 11.4 | 6.5 |
| May | 23° / 14° | 172 | 9.7 | 10.7 | 6.9 |
| Jun | 21° / 13° | 162 | 9.7 | 10.4 | 6.6 |
| Jul | 21° / 12° | 135 | 9.4 | 10.5 | 6.8 |
| Aug | 24° / 13° | 97 | 7.8 | 11.1 | 7.5 |
| Sep | 26° / 15° | 166 | 10.5 | 11.8 | 6.8 |
| Oct | 28° / 17° | 222 | 13.8 | 12.6 | 5.8 |
| Nov | 29° / 18° | 176 | 11.8 | 13.3 | 5.2 |
| Dec | 31° / 20° | 199 | 14.8 | 13.6 | 4.1 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Montecarlo gets about 1970 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.
The wetter season lasts 4.0 months, from around Nov 25 to Mar 26, peaking in February at about 55% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 21.
October is the wettest month by volume, with 222 mm over about 14 wet days; August is the driest, with 97 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 51 | 53 | 42 | 34 | 31 | 32 | 30 | 25 | 35 | 44 | 39 | 47 |
| Rain days | 16 | 15 | 13 | 10 | 10 | 10 | 9 | 8 | 11 | 14 | 12 | 15 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 51 | 16 |
| Feb | 53 | 15 |
| Mar | 42 | 13 |
| Apr | 34 | 10 |
| May | 31 | 10 |
| Jun | 32 | 10 |
| Jul | 30 | 9 |
| Aug | 25 | 8 |
| Sep | 35 | 11 |
| Oct | 44 | 14 |
| Nov | 39 | 12 |
| Dec | 47 | 15 |
Monthly rainfall
Over a full year, Montecarlo collects about 1970 mm of rain across 141 wet days — roughly 164 mm in an average month.
It doesn’t fall evenly. October is the wettest month with 222 mm, while August is the driest at just 97 mm. The three wettest months alone bring about 30% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 170 | 172 | 149 | 150 | 172 | 162 | 135 | 97 | 166 | 222 | 176 | 199 |
| Rain days | 16 | 15 | 13 | 10 | 10 | 10 | 9 | 8 | 11 | 14 | 12 | 15 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 170 | 16 |
| Feb | 172 | 15 |
| Mar | 149 | 13 |
| Apr | 150 | 10 |
| May | 172 | 10 |
| Jun | 162 | 10 |
| Jul | 135 | 9 |
| Aug | 97 | 8 |
| Sep | 166 | 11 |
| Oct | 222 | 14 |
| Nov | 176 | 12 |
| Dec | 199 | 15 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Montecarlo, 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 July 7 and lasts for 2.5 months, ending around September 21. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 61% of the time on average.
The cloudier part of the year begins around September 22 and lasts for 1.9 months, ending around November 17. The cloudiest month is October, when it is overcast or mostly cloudy 52% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 52 | 53 | 57 | 57 | 51 | 51 | 56 | 61 | 57 | 48 | 53 | 53 |
| Cloudier (%) | 48 | 47 | 43 | 43 | 49 | 49 | 44 | 39 | 43 | 52 | 47 | 47 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 52 | 48 |
| Feb | 53 | 47 |
| Mar | 57 | 43 |
| Apr | 57 | 43 |
| May | 51 | 49 |
| Jun | 51 | 49 |
| Jul | 56 | 44 |
| Aug | 61 | 39 |
| Sep | 57 | 43 |
| Oct | 48 | 52 |
| Nov | 53 | 47 |
| Dec | 53 | 47 |
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 December 14, brings about 13 h 42 min of light; the shortest, around June 15, only 10 h 18 min — a swing of roughly 3 h 24 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.5 | 12.9 | 12.2 | 11.4 | 10.7 | 10.4 | 10.5 | 11.1 | 11.8 | 12.6 | 13.3 | 13.6 |
| Sunrise (AM) | 6:03 | 6:26 | 6:43 | 6:58 | 7:14 | 7:29 | 7:30 | 7:11 | 6:38 | 6:05 | 5:44 | 5:45 |
| Sunset (PM) | 7:33 | 7:22 | 6:55 | 6:20 | 5:56 | 5:50 | 5:59 | 6:15 | 6:29 | 6:43 | 7:04 | 7:25 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 13.5 | 6:03 | 7:33 |
| Feb | 12.9 | 6:26 | 7:22 |
| Mar | 12.2 | 6:43 | 6:55 |
| Apr | 11.4 | 6:58 | 6:20 |
| May | 10.7 | 7:14 | 5:56 |
| Jun | 10.4 | 7:29 | 5:50 |
| Jul | 10.5 | 7:30 | 5:59 |
| Aug | 11.1 | 7:11 | 6:15 |
| Sep | 11.8 | 6:38 | 6:29 |
| Oct | 12.6 | 6:05 | 6:43 |
| Nov | 13.3 | 5:44 | 7:04 |
| Dec | 13.6 | 5:45 | 7:25 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Montecarlo averages about 12 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 10 and 17 days.
The sunnier stretch runs 2.9 months, from around Jun 30 to Sep 25. The sunniest month is August, with roughly 16 sunny days (bright).
The greyest month is October, down near 10 sunny days — about 33% fewer than the August peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 11 | 11 | 13 | 13 | 12 | 12 | 14 | 16 | 13 | 11 | 12 | 11 |
| Sky | Mixed | Mixed | Mixed | Mixed | Mixed | Mixed | Mixed | Bright | Mixed | Mixed | Mixed | Mixed |
| Sunny days | Sky | |
|---|---|---|
| Jan | 11 | Mixed |
| Feb | 11 | Mixed |
| Mar | 13 | Mixed |
| Apr | 13 | Mixed |
| May | 12 | Mixed |
| Jun | 12 | Mixed |
| Jul | 14 | Mixed |
| Aug | 16 | Bright |
| Sep | 13 | Mixed |
| Oct | 11 | Mixed |
| Nov | 12 | Mixed |
| Dec | 11 | 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 Montecarlo, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 6.7 months, from around October 8 to April 29. The muggiest month is March, when the air feels humid, muggy or worse about 96% of the time.
The most comfortable stretch runs from around April 30 to October 7, and July is the most comfortable month — the air is dry or comfortable 74% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 1 | 1 | 10 | 28 | 36 | 45 | 41 | 29 | 11 | 7 | 2 |
| Comfortable (%) | 2 | 3 | 3 | 13 | 26 | 25 | 29 | 32 | 26 | 17 | 15 | 6 |
| Humid (%) | 10 | 10 | 17 | 24 | 29 | 31 | 22 | 24 | 30 | 28 | 24 | 16 |
| Muggy (%) | 27 | 30 | 40 | 38 | 16 | 8 | 4 | 3 | 14 | 38 | 39 | 35 |
| Oppressive (%) | 57 | 54 | 38 | 15 | 2 | 0 | 0 | 0 | 1 | 7 | 16 | 40 |
| Miserable (%) | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| Jan | 0 | 2 | 10 | 27 | 57 | 3 |
| Feb | 1 | 3 | 10 | 30 | 54 | 2 |
| Mar | 1 | 3 | 17 | 40 | 38 | 0 |
| Apr | 10 | 13 | 24 | 38 | 15 | 0 |
| May | 28 | 26 | 29 | 16 | 2 | 0 |
| Jun | 36 | 25 | 31 | 8 | 0 | 0 |
| Jul | 45 | 29 | 22 | 4 | 0 | 0 |
| Aug | 41 | 32 | 24 | 3 | 0 | 0 |
| Sep | 29 | 26 | 30 | 14 | 1 | 0 |
| Oct | 11 | 17 | 28 | 38 | 7 | 0 |
| Nov | 7 | 15 | 24 | 39 | 16 | 0 |
| Dec | 2 | 6 | 16 | 35 | 40 | 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 Montecarlo is steady company: average speeds sit near 8 km/h — calm — 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) | 7 | 7 | 7 | 8 | 8 | 9 | 9 | 10 | 9 | 9 | 8 | 8 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 7 | calm |
| Feb | 7 | calm |
| Mar | 7 | calm |
| Apr | 8 | calm |
| May | 8 | calm |
| Jun | 9 | calm |
| Jul | 9 | calm |
| Aug | 10 | calm |
| Sep | 9 | calm |
| Oct | 9 | calm |
| Nov | 8 | calm |
| Dec | 8 | calm |
Best time to visit Montecarlo
To characterize how pleasant the weather is in Montecarlo throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around mid April, Montecarlo is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.
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 Montecarlo for general outdoor tourist activities is from early April to early October, with a peak score in the third week of August.
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) | 3.8 | 4.0 | 4.9 | 6.5 | 6.9 | 6.6 | 6.8 | 7.5 | 6.8 | 5.8 | 5.1 | 4.1 |
| Rating | fair | fair | fair | good | good | good | good | good | good | good | fair | fair |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 3.8 | fair |
| Feb | 4.0 | fair |
| Mar | 4.9 | fair |
| Apr | 6.5 | good |
| May | 6.9 | good |
| Jun | 6.6 | good |
| Jul | 6.8 | good |
| Aug | 7.5 | good |
| Sep | 6.8 | good |
| Oct | 5.8 | good |
| Nov | 5.1 | fair |
| Dec | 4.1 | fair |
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 Montecarlo for hot-weather activities is from early August to mid May, with a peak score in the first week of April.
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 Montecarlo, 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 31°C), the essentials are light clothes, rain gear and sun protection. In the cold season around July (highs near 21°C), pack rain gear.
In January, Montecarlo sees daytime highs around 31°C and nights near 21°C. Pack light clothes, rain gear and sun protection. About 16 days see rain.
UV index (midday) in Montecarlo 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 Montecarlo peaks around January 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 5 (moderate).
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 | 14 | 12 | 8 | 6 | 5 | 5 | 6 | 7 | 9 | 11 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 14 | Extreme |
| Mar | 12 | Extreme |
| Apr | 8 | Very high |
| May | 6 | High |
| Jun | 5 | Moderate |
| Jul | 5 | Moderate |
| Aug | 6 | High |
| Sep | 7 | Very high |
| Oct | 9 | Very high |
| Nov | 11 | Extreme |
| Dec | 13 | Extreme |
Average hourly UV index in Montecarlo
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 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 | 6.5 | 5 | 4 | 4.5 | 5.5 | 6.5 | 7.5 | 8.5 | 9 |
| UV ≥ 6 (h/day) | 7 | 6.5 | 6 | 4 | 0 | 0 | 0 | 0 | 3 | 4.5 | 6 | 6.5 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 9 | 7 |
| Feb | 8.5 | 6.5 |
| Mar | 8 | 6 |
| Apr | 6.5 | 4 |
| May | 5 | 0 |
| Jun | 4 | 0 |
| Jul | 4.5 | 0 |
| Aug | 5.5 | 0 |
| Sep | 6.5 | 3 |
| Oct | 7.5 | 4.5 |
| Nov | 8.5 | 6 |
| Dec | 9 | 6.5 |
Air quality in Montecarlo 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 Montecarlo is worst in September — around 20 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (March, 7 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) | 8 | 8 | 7 | 8 | 8 | 8 | 10 | 14 | 20 | 13 | 9 | 7 |
| Level | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 8 | Good |
| Mar | 7 | Good |
| Apr | 8 | Good |
| May | 8 | Good |
| Jun | 8 | Good |
| Jul | 10 | Good |
| Aug | 14 | Moderate |
| Sep | 20 | Moderate |
| Oct | 13 | Moderate |
| Nov | 9 | Good |
| Dec | 7 | Good |
Growing season
Montecarlo 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 | 99 | 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 | 99 | 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. Montecarlo banks about 4,271 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) | 501 | 438 | 454 | 359 | 259 | 210 | 201 | 264 | 309 | 383 | 413 | 480 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 501 |
| Feb | 438 |
| Mar | 454 |
| Apr | 359 |
| May | 259 |
| Jun | 210 |
| Jul | 201 |
| Aug | 264 |
| Sep | 309 |
| Oct | 383 |
| Nov | 413 |
| Dec | 480 |
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.
Montecarlo receives about 4.7 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.7 and 6.4 kWh/m².
The brighter stretch of the year lasts 6.2 months, from around Sep 19 to Mar 27. The brightest month is December, averaging about 6.4 kWh/m² (intense).
The dimmest month is June, down near 2.7 kWh/m² — roughly 57% less than the December peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.3 | 5.7 | 5.1 | 4.2 | 3.2 | 2.7 | 3.1 | 4.0 | 4.7 | 5.3 | 6.2 | 6.4 |
| Level | Intense | Bright | Bright | Bright | Moderate | Moderate | Moderate | Moderate | Bright | Bright | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 6.3 | Intense |
| Feb | 5.7 | Bright |
| Mar | 5.1 | Bright |
| Apr | 4.2 | Bright |
| May | 3.2 | Moderate |
| Jun | 2.7 | Moderate |
| Jul | 3.1 | Moderate |
| Aug | 4.0 | Moderate |
| Sep | 4.7 | Bright |
| Oct | 5.3 | Bright |
| Nov | 6.2 | Intense |
| Dec | 6.4 | Intense |
Where is Montecarlo?
Montecarlo sits at 26.6°S, 54.8°W, 197 m above sea level, in Argentina. The nearest listed city is Eldorado, 23 km away.
Topography around Montecarlo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Montecarlo.
Within 3 km, the terrain around Montecarlo has only modest variations in elevation — a maximum elevation change of 158 m around an average of 190 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 342 m; within 80 km, large variations in elevation — a maximum elevation change of 641 m.
The land around Montecarlo is covered by trees (76%) within 3 km, trees (65%) within 16 km, and trees (68%) and cropland (24%) within 80 km.
Argentina travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / I
- 220 V · 50 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $14,898
- 2025
- Happiness
- 6.4 / 10
- World Happiness, 2025
- Homicide rate
- 4.5
- per 100k, 2023
- Road deaths
- 14.1
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- High
- EF EPI 575
- 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 Montecarlo (-26.5685°, -54.7579°, elevation 197 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. 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).