Climate and average weather in Korčula
In Korčula, the summers are hot, fairly dry, and clear and the winters are cool, snowy, and partly cloudy.
Over the course of the year, the temperature in Korčula typically varies from 5°C to 28°C, and is rarely below 1°C or above 32°C. July is the hottest month of the year, while January is the coldest.
Based on the travel score, the best time of year to visit Korčula for warm-weather activities is from early May to mid October.
- Hottest
- Jul
- 28°
- Coldest
- Jan
- 5°
- Wettest
- Nov
- 215 mm
- Driest
- Jul
- 24 mm
- Rain / yr
- 1371 mm
- 113 wet days
- Daylight
- 8.8–15.2 h
- shortest–longest
- Elevation
- 0 m
- 43.0°N
- Clearest
- Jul
- 22% cloud
Korčula is town and settlement in Dubrovnik-Neretva County, Croatia.
- Density
- 24/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Korčula 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 May to mid October.
Temperature through the year
Daily average highs and lows in Korčula, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
The hot season lasts 3.3 months, from June 7 to September 15, with daily high temperatures above 24°C. The hottest month of the year in Korčula is July, with an average high of 28°C and low of 22°C.
The cool season lasts 3.8 months, from November 24 to March 19, with daily high temperatures below 14°C. The coldest month of the year in Korčula is January, with an average low of 5°C and high of 10°C.
Days typically run about 6°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 10 | 11 | 14 | 17 | 21 | 26 | 28 | 28 | 24 | 20 | 15 | 11 |
| Avg low (°C) | 5 | 6 | 8 | 11 | 15 | 19 | 22 | 22 | 18 | 14 | 10 | 6 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 10 | 5 |
| Feb | 11 | 6 |
| Mar | 14 | 8 |
| Apr | 17 | 11 |
| May | 21 | 15 |
| Jun | 26 | 19 |
| Jul | 28 | 22 |
| Aug | 28 | 22 |
| Sep | 24 | 18 |
| Oct | 20 | 14 |
| Nov | 15 | 10 |
| Dec | 11 | 6 |
Average hourly temperature in Korčula
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 July afternoons, near 28°C, and coldest before dawn in January, near 5°C.
Korčula weather by month
Every month at a glance. Click a month for its detailed page.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 10° / 5° | 143 | 11.8 | 0.7 | 9.2 | 2.4 |
| Feb | 11° / 6° | 122 | 10.9 | 1 | 10.2 | 2.7 |
| Mar | 14° / 8° | 112 | 10.3 | 0.5 | 11.6 | 4.1 |
| Apr | 17° / 11° | 107 | 10.9 | 0 | 13.1 | 5.4 |
| May | 21° / 15° | 76 | 8.6 | 0 | 14.4 | 6.9 |
| Jun | 26° / 19° | 50 | 5.6 | 0 | 15.1 | 7.9 |
| Jul | 28° / 22° | 24 | 4.1 | 0 | 14.8 | 7.3 |
| Aug | 28° / 22° | 50 | 4.9 | 0 | 13.8 | 7.2 |
| Sep | 24° / 18° | 131 | 7.9 | 0 | 12.3 | 7.4 |
| Oct | 20° / 14° | 157 | 11.1 | 0 | 10.8 | 6.4 |
| Nov | 15° / 10° | 215 | 13.8 | 0.1 | 9.5 | 4.4 |
| Dec | 11° / 6° | 183 | 12.8 | 0.3 | 8.9 | 2.8 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Korčula gets about 1371 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 5.6 months, from around Sep 25 to Mar 13, peaking in November at about 48% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 3.
November is the wettest month by volume, with 215 mm over about 14 wet days; July is the driest, with 24 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 38 | 39 | 33 | 36 | 29 | 18 | 13 | 16 | 28 | 35 | 45 | 41 |
| Rain days | 12 | 11 | 10 | 11 | 9 | 6 | 4 | 5 | 8 | 11 | 14 | 13 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 38 | 12 |
| Feb | 39 | 11 |
| Mar | 33 | 10 |
| Apr | 36 | 11 |
| May | 29 | 9 |
| Jun | 18 | 6 |
| Jul | 13 | 4 |
| Aug | 16 | 5 |
| Sep | 28 | 8 |
| Oct | 35 | 11 |
| Nov | 45 | 14 |
| Dec | 41 | 13 |
Monthly rainfall
Over a full year, Korčula collects about 1371 mm of rain across 113 wet days — roughly 114 mm in an average month.
It doesn’t fall evenly. November is the wettest month with 215 mm, while July is the driest at just 24 mm. The three wettest months alone bring about 41% of the year’s total, and some of the cold-season precipitation falls as snow.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 143 | 122 | 112 | 107 | 76 | 50 | 24 | 50 | 131 | 157 | 215 | 183 |
| Rain days | 12 | 11 | 10 | 11 | 9 | 6 | 4 | 5 | 8 | 11 | 14 | 13 |
| Snow days | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rainfall (mm) | Rain days | Snow days | |
|---|---|---|---|
| Jan | 143 | 12 | 1 |
| Feb | 122 | 11 | 1 |
| Mar | 112 | 10 | 1 |
| Apr | 107 | 11 | 0 |
| May | 76 | 9 | 0 |
| Jun | 50 | 6 | 0 |
| Jul | 24 | 4 | 0 |
| Aug | 50 | 5 | 0 |
| Sep | 131 | 8 | 0 |
| Oct | 157 | 11 | 0 |
| Nov | 215 | 14 | 0 |
| Dec | 183 | 13 | 0 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Korčula, 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 May 16 and lasts for 4.9 months, ending around October 12. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 90% of the time on average.
The cloudier part of the year begins around October 13 and lasts for 7.1 months, ending around May 15. The cloudiest month is November, when it is overcast or mostly cloudy 52% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 49 | 52 | 56 | 57 | 65 | 78 | 90 | 88 | 70 | 62 | 48 | 50 |
| Cloudier (%) | 51 | 48 | 44 | 43 | 35 | 22 | 10 | 12 | 30 | 38 | 52 | 50 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 49 | 51 |
| Feb | 52 | 48 |
| Mar | 56 | 44 |
| Apr | 57 | 43 |
| May | 65 | 35 |
| Jun | 78 | 22 |
| Jul | 90 | 10 |
| Aug | 88 | 12 |
| Sep | 70 | 30 |
| Oct | 62 | 38 |
| Nov | 48 | 52 |
| Dec | 50 | 50 |
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 June 16, brings about 15 h 12 min of light; the shortest, around December 16, only 8 h 48 min — a swing of roughly 6 h 24 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 9.2 | 10.2 | 11.6 | 13.1 | 14.4 | 15.1 | 14.8 | 13.8 | 12.3 | 10.8 | 9.5 | 8.9 |
| Sunrise (AM) | 7:26 | 6:59 | 6:12 | 5:17 | 4:34 | 4:17 | 4:31 | 5:02 | 5:37 | 6:12 | 6:52 | 7:22 |
| Sunset (PM) | 4:36 | 5:14 | 5:50 | 6:27 | 7:01 | 7:26 | 7:23 | 6:49 | 5:54 | 5:01 | 4:22 | 4:13 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 9.2 | 7:26 | 4:36 |
| Feb | 10.2 | 6:59 | 5:14 |
| Mar | 11.6 | 6:12 | 5:50 |
| Apr | 13.1 | 5:17 | 6:27 |
| May | 14.4 | 4:34 | 7:01 |
| Jun | 15.1 | 4:17 | 7:26 |
| Jul | 14.8 | 4:31 | 7:23 |
| Aug | 13.8 | 5:02 | 6:49 |
| Sep | 12.3 | 5:37 | 5:54 |
| Oct | 10.8 | 6:12 | 5:01 |
| Nov | 9.5 | 6:52 | 4:22 |
| Dec | 8.9 | 7:22 | 4:13 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Korčula averages about 16 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 9 and 25 days.
The sunnier stretch runs 4.0 months, from around May 29 to Sep 27. The sunniest month is July, with roughly 25 sunny days (brilliant).
The greyest month is November, down near 10 sunny days — about 58% fewer than the July peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 12 | 11 | 13 | 13 | 15 | 20 | 25 | 24 | 17 | 15 | 10 | 12 |
| Sky | Mixed | Mixed | Mixed | Mixed | Mixed | Bright | Brilliant | Brilliant | Bright | Mixed | Mixed | Mixed |
| Sunny days | Sky | |
|---|---|---|
| Jan | 12 | Mixed |
| Feb | 11 | Mixed |
| Mar | 13 | Mixed |
| Apr | 13 | Mixed |
| May | 15 | Mixed |
| Jun | 20 | Bright |
| Jul | 25 | Brilliant |
| Aug | 24 | Brilliant |
| Sep | 17 | Bright |
| Oct | 15 | Mixed |
| Nov | 10 | Mixed |
| Dec | 12 | 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 Korčula, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 4.5 months, from around May 24 to October 7. The muggiest month is August, when the air feels humid, muggy or worse about 81% of the time.
The most comfortable stretch runs from around October 8 to May 23, and January 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 (%) | 100 | 100 | 100 | 91 | 44 | 13 | 9 | 7 | 25 | 51 | 84 | 98 |
| Comfortable (%) | 0 | 0 | 0 | 8 | 38 | 26 | 15 | 12 | 23 | 32 | 14 | 2 |
| Humid (%) | 0 | 0 | 0 | 0 | 16 | 41 | 39 | 36 | 36 | 16 | 2 | 0 |
| Muggy (%) | 0 | 0 | 0 | 0 | 1 | 20 | 35 | 42 | 16 | 2 | 0 | 0 |
| Oppressive (%) | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 3 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| Jan | 100 | 0 | 0 | 0 | 0 |
| Feb | 100 | 0 | 0 | 0 | 0 |
| Mar | 100 | 0 | 0 | 0 | 0 |
| Apr | 91 | 8 | 0 | 0 | 0 |
| May | 44 | 38 | 16 | 1 | 0 |
| Jun | 13 | 26 | 41 | 20 | 1 |
| Jul | 9 | 15 | 39 | 35 | 3 |
| Aug | 7 | 12 | 36 | 42 | 3 |
| Sep | 25 | 23 | 36 | 16 | 0 |
| Oct | 51 | 32 | 16 | 2 | 0 |
| Nov | 84 | 14 | 2 | 0 | 0 |
| Dec | 98 | 2 | 0 | 0 | 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 Korčula is typically calm, near 12 km/h, and varies little with the seasons.
The windier part of the year lasts 5.8 months, from around Oct 26 to Apr 19. The windiest month is December, averaging about 13 km/h (light breeze).
The calmer part of the year runs from around Apr 20 to Oct 25, with August the calmest month at about 10 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 13 | 13 | 13 | 12 | 11 | 10 | 11 | 10 | 11 | 11 | 13 | 13 |
| Feels | light breeze | light breeze | light breeze | calm | calm | calm | calm | calm | calm | calm | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 13 | light breeze |
| Feb | 13 | light breeze |
| Mar | 13 | light breeze |
| Apr | 12 | calm |
| May | 11 | calm |
| Jun | 10 | calm |
| Jul | 11 | calm |
| Aug | 10 | calm |
| Sep | 11 | calm |
| Oct | 11 | calm |
| Nov | 13 | light breeze |
| Dec | 13 | light breeze |
Hazard calendar for Korčula
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Korčula's rainy season runs September–April, when most of the year's rain falls.
Best time to visit Korčula
To characterize how pleasant the weather is in Korčula throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around early October, Korčula 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 Korčula for general outdoor tourist activities is from early May to mid October, with a peak score in the last week of June.
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) | 2.4 | 2.8 | 4.1 | 5.4 | 6.9 | 7.9 | 7.3 | 7.2 | 7.4 | 6.4 | 4.4 | 2.8 |
| Rating | poor | poor | fair | fair | good | ideal | good | good | good | good | fair | poor |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 2.4 | poor |
| Feb | 2.8 | poor |
| Mar | 4.1 | fair |
| Apr | 5.4 | fair |
| May | 6.9 | good |
| Jun | 7.9 | ideal |
| Jul | 7.3 | good |
| Aug | 7.2 | good |
| Sep | 7.4 | good |
| Oct | 6.4 | good |
| Nov | 4.4 | fair |
| Dec | 2.8 | poor |
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 Korčula for hot-weather activities is from mid June to early September, with a peak score in the second week of July.
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 Korčula, 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 July (highs near 28°C), the essentials are light clothes and sun protection. In the cold season around January (highs near 10°C), pack a warm layer and rain gear.
In July, Korčula sees daytime highs around 28°C and nights near 22°C. Pack light clothes and sun protection. About 4 days see rain.
Sea temperature near Korčula
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 August at about 25°C and coldest in February near 14°C.
It's comfortable for a long swim from May 31 to Oct 28 — about 5 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 14 | 14 | 14 | 15 | 18 | 22 | 24 | 25 | 23 | 21 | 19 | 16 |
| Comfort | Bracing | Bracing | Bracing | Cool | Cool | Refreshing | Warm | Warm | Refreshing | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 14 | Bracing |
| Feb | 14 | Bracing |
| Mar | 14 | Bracing |
| Apr | 15 | Cool |
| May | 18 | Cool |
| Jun | 22 | Refreshing |
| Jul | 24 | Warm |
| Aug | 25 | Warm |
| Sep | 23 | Refreshing |
| Oct | 21 | Refreshing |
| Nov | 19 | Cool |
| Dec | 16 | Cool |
UV index (midday) in Korčula 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 Korčula peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 5 | 7 | 7 | 8 | 9 | 8 | 5 | 4 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | High |
| May | 7 | High |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 5 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Average hourly UV index in Korčula
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 July the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 5.5 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) | 0 | 0 | 5 | 6.5 | 7 | 8 | 8.5 | 7.5 | 5.5 | 3 | 0 | 0 |
| UV ≥ 6 (h/day) | 0 | 0 | 0 | 2 | 3 | 5 | 5.5 | 4.5 | 0 | 0 | 0 | 0 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 0 | 0 |
| Feb | 0 | 0 |
| Mar | 5 | 0 |
| Apr | 6.5 | 2 |
| May | 7 | 3 |
| Jun | 8 | 5 |
| Jul | 8.5 | 5.5 |
| Aug | 7.5 | 4.5 |
| Sep | 5.5 | 0 |
| Oct | 3 | 0 |
| Nov | 0 | 0 |
| Dec | 0 | 0 |
Growing season
Korčula is mild enough that a frost-free day stays more likely than not even in midwinter.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 94 | 95 | 99 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 97 |
| Frost nights | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 94 | 0 |
| Feb | 95 | 0 |
| Mar | 99 | 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 | 97 | 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. Korčula banks about 2,304 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 0 | 0 | 22 | 114 | 249 | 370 | 465 | 463 | 329 | 210 | 80 | 1 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 22 |
| Apr | 114 |
| May | 249 |
| Jun | 370 |
| Jul | 465 |
| Aug | 463 |
| Sep | 329 |
| Oct | 210 |
| Nov | 80 |
| Dec | 1 |
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.
Korčula receives about 4.3 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 1.5 and 7.3 kWh/m².
The brighter stretch of the year lasts 6.1 months, from around Mar 21 to Sep 21. The brightest month is July, averaging about 7.1 kWh/m² (intense).
The dimmest month is December, down near 1.5 kWh/m² — roughly 79% less than the July peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 1.8 | 2.7 | 4.1 | 5.3 | 6.4 | 7.1 | 7.1 | 6.3 | 4.6 | 3.1 | 1.9 | 1.5 |
| Level | Dim | Moderate | Bright | Bright | Intense | Intense | Intense | Intense | Bright | Moderate | Dim | Dim |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 1.8 | Dim |
| Feb | 2.7 | Moderate |
| Mar | 4.1 | Bright |
| Apr | 5.3 | Bright |
| May | 6.4 | Intense |
| Jun | 7.1 | Intense |
| Jul | 7.1 | Intense |
| Aug | 6.3 | Intense |
| Sep | 4.6 | Bright |
| Oct | 3.1 | Moderate |
| Nov | 1.9 | Dim |
| Dec | 1.5 | Dim |
Where is Korčula?
Korčula sits at 43.0°N, 17.1°E, 0 m above sea level, in Croatia. The nearest listed city is Neum, 39 km away.
Topography around Korčula
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Korčula.
Within 3 km, the terrain around Korčula has large variations in elevation — a maximum elevation change of 693 m around an average of 72 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 946 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,187 m.
The land around Korčula is covered by water (41%) and trees (39%) within 3 km, water (71%) and trees (20%) within 16 km, and water (55%) and trees (25%) within 80 km.
Croatia travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 53% of US
- price level, 2025
- GDP per capita
- $27,104
- 2025
- Happiness
- 6.0 / 10
- World Happiness, 2025
- Safe drinking water
- 87%
- of population, 2024
- Homicide rate
- 0.7
- per 100k, 2023
- Road deaths
- 7.9
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Very high
- EF EPI 617
- 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 Korčula (42.9604°, 17.1352°, elevation 0 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).