AI-generatedKoroni at a glance
- Best time
- Jun – Sep
- Warmest month
- Aug · 32°
- Warmest sea
- Aug · 26.4°
- Sunshine a year
- 2,730 h
- Rain a year
- 690 mm
- Climate
- Mediterranean
- Time zone
- UTC+2 / UTC+3
- Elevation
- 40 m
Climate in Koroni
Koroni has a Mediterranean climate with warm to hot, dry summers and mild, wetter winters. August is the warmest month with average highs of 32 °C, while January is the coolest at 15 °C. With around 2,730 hours of sunshine a year, Koroni is sunny; July is the sunniest month with 11.7 hours a day.
Holiday weather through the year
Best time to visit Koroni
The best time to visit Koroni is from June to September. For a beach holiday – sea from 21 °C, warm and mostly dry – go from June to October. For sightseeing, day trips and hiking, conditions are most comfortable from March to May and from October to November. Rain is frequent in December; the wettest month is November with 120 mm.
Koroni through the seasons
How the weather changes over the seasons, with averages for each.
Koroni in spring
Mar – May
Fair
- 17–24 °C by day
- Sea 17 °C
- 7.8 h of sun a day
- 22 rainy days in all
Koroni in summer
Jun – Aug
Excellent
- 28–32 °C by day
- Sea 25 °C
- 11.2 h of sun a day
- 5 rainy days in all
Koroni in autumn
Sep – Nov
Good
- 20–28 °C by day
- Sea 23 °C
- 6.2 h of sun a day
- 23 rainy days in all
Koroni in winter
Dec – Feb
Poor
- 15–16 °C by day
- Sea 17 °C
- 4.6 h of sun a day
- 36 rainy days in all
Which month for what?
Beach & swimming
Jun – Oct
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Mar – May, Oct – Nov
15–28 °C and not too much rain
Rainy months
Dec
Rainy season or more than 12 rainy days
Find your perfect month
Tell us what you like and we rate every month in Koroni for you.
Your best months: June – July, September
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Good
Best time to visit: June – September
Where to go in OctoberSea temperature in October
Good forBeach & swimmingSightseeing & walks
A typical day in October
- Morning, 08:00: about 18°
- Midday, 13:00: about 23°
- Afternoon, 16:00: about 24°
- Evening, 20:00: about 21°
- Night, 23:00: about 20°
07:3818:57
Pleasant evenings; a light layer can help.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:22–08:13 · evening 18:22–19:13
- Blue hour
- Morning 07:12–07:22 · evening 19:13–19:23
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in Koroni compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 26° at the start of the month to 22° at the end. The sea cools from 24° to 22°. The days get 1.1 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 26° | 22° |
| Night-time low | 19° | 16° |
| Sea | 24° | 22° |
| Daylight | 11.9 h | 10.8 h |
What is the weather like in Koroni in October?
In October, Koroni is warm: daytime highs average 24 °C, and nights cool down to about 18 °C. The sea averages 23.5 °C – pleasant for swimming. Expect around 6.2 hours of sunshine a day. Rain falls on about 7 days, adding up to 65 mm. All in all, October is a good month for a holiday in Koroni.
More details for October
- Daylight
- 11 h 19 min07:38 – 18:57
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 3 daysdew point 18 °C or moreAll months
- Wind
- 15 km/haverage daily peakAll months
- Cloud cover
- 40 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+3offset from UTC
How the score comes together
- Temperatureweight 35 %82 %
- Seaweight 25 %93 %
- Sunshineweight 20 %53 %
- Few rainy daysweight 20 %76 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Swimwear
- Sunscreen
Compare two months in Koroni
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
July has the better holiday weather in Koroni: score 98 against 78. In July, days are 7 °C warmer than in October. The sea is 2 °C warmer in July. July has 6 fewer rainy days. The sun shines 5 hours longer a day in July.
| Month | October | July |
|---|---|---|
| Holiday weather score | 78 | 98better |
| Daytime high | 24° | 31° |
| Night-time low | 18° | 23° |
| Sea | 23.5° | 25.2° |
| Sunshine | 6.2 h | 11.7 hbetter |
| Rainy days | 7 | 1better |
| Rainfall | 65 mm | 5 mmbetter |
| Muggy days | 3better | 23 |
Based on the climate averages 1996–2025.
Koroni month by month
The typical weather for every month at a glance.
14January15° · Sea 17° · 4.7 h
In January, Koroni is cool: daytime highs average 15 °C, and nights cool down to about 10 °C. The sea averages 16.8 °C – swimming is only for the hardy. Expect around 4.7 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 113 mm in total. All in all, January is not an ideal month for a holiday in Koroni.
Koroni in January17February15° · Sea 16° · 5.2 h
In February, Koroni is cool: daytime highs average 15 °C, and nights cool down to about 10 °C. The sea averages 15.8 °C – swimming is only for the hardy. Expect around 5.2 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 88 mm in total. All in all, February is not an ideal month for a holiday in Koroni.
Koroni in February22March17° · Sea 16° · 6.4 h
In March, Koroni is mild: daytime highs average 17 °C, and nights cool down to about 11 °C. The sea averages 15.8 °C – swimming is only for the hardy. Expect around 6.4 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 72 mm in total. All in all, March is not an ideal month for a holiday in Koroni.
Koroni in March38April20° · Sea 17° · 8.1 h
In April, Koroni is mild: daytime highs average 20 °C, and nights cool down to about 13 °C. The sea averages 16.6 °C – swimming is only for the hardy. The sun shines for around 8.1 hours a day. Rain falls on about 7 days, adding up to 41 mm. All in all, April is not an ideal month for a holiday in Koroni.
Koroni in April75May24° · Sea 19° · 8.9 h
In May, Koroni is warm: daytime highs average 24 °C, and nights cool down to about 17 °C. The sea averages 19.0 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8.9 hours a day. Rain falls on about 5 days, adding up to 21 mm. All in all, May is a good month for a holiday in Koroni.
Koroni in May94June28° · Sea 22° · 11.3 h
In June, Koroni is hot: daytime highs average 28 °C, and even at night it stays warm at around 20 °C. The sea averages 22.3 °C – refreshing for a swim. With around 11.3 hours of sunshine a day, there is plenty of sun. Rain is rare: about 3 days bring 12 mm in total. On about 8 days the thermometer climbs to 30 °C or more. All in all, June is an excellent month for a holiday in Koroni.
Koroni in June98July31° · Sea 25° · 11.7 h
In July, Koroni is hot: daytime highs average 31 °C, and even at night it stays warm at around 23 °C. The sea averages 25.2 °C – pleasant for swimming. With around 11.7 hours of sunshine a day, there is plenty of sun. It hardly ever rains. On about 24 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is an excellent month for a holiday in Koroni.
Koroni in July97August32° · Sea 26° · 10.5 h
In August, Koroni is hot: daytime highs average 32 °C, and even at night it stays warm at around 23 °C. The sea averages 26.4 °C – lovely and warm for swimming. With around 10.5 hours of sunshine a day, there is plenty of sun. It hardly ever rains. On about 26 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is an excellent month for a holiday in Koroni.
Koroni in August95September28° · Sea 26° · 8.0 h
In September, Koroni is hot: daytime highs average 28 °C, and even at night it stays warm at around 21 °C. The sea averages 25.5 °C – pleasant for swimming. The sun shines for around 8.0 hours a day. Rain falls on about 5 days, adding up to 34 mm. On about 7 days the thermometer climbs to 30 °C or more. All in all, September is an excellent month for a holiday in Koroni.
Koroni in September78October24° · Sea 24° · 6.2 h
In October, Koroni is warm: daytime highs average 24 °C, and nights cool down to about 18 °C. The sea averages 23.5 °C – pleasant for swimming. Expect around 6.2 hours of sunshine a day. Rain falls on about 7 days, adding up to 65 mm. All in all, October is a good month for a holiday in Koroni.
Koroni in October35November20° · Sea 21° · 4.5 h
In November, Koroni is mild: daytime highs average 20 °C, and nights cool down to about 15 °C. The sea averages 21.1 °C – refreshing for a swim. Expect around 4.5 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 120 mm in total. All in all, November is not an ideal month for a holiday in Koroni.
Koroni in November17December16° · Sea 19° · 4.0 h
In December, Koroni is mild: daytime highs average 16 °C, and nights cool down to about 11 °C. The sea averages 18.5 °C – bracing, so a wetsuit helps for longer swims. Expect around 4.0 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 113 mm in total. All in all, December is not an ideal month for a holiday in Koroni.
Koroni in DecemberClimate in detail
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Koroni
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Cool 8–15°
- Pleasant 15–20°
- Warm 20–24°
- muggy month (15+ muggy days)
PleasantOctober: nights around 18°. Ideal for sleeping, often with the window open. Muggy on about 3 days (dew point 18 °C or more).
The coolest nights are in February (10°), the warmest in August (23°). Tropical nights of 20 °C and more are the rule from June to September; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) in May and from October to November. It is muggy (dew point 18 °C or more) on about 76 days a year, mostly from July to August.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 14 | 15° | 10° | 16.8° | 4.7 h | 12 | 113 |
| FebruaryFeb | 17 | 15° | 10° | 15.8° | 5.2 h | 12 | 88 |
| MarchMar | 22 | 17° | 11° | 15.8° | 6.4 h | 10 | 72 |
| AprilApr | 38 | 20° | 13° | 16.6° | 8.1 h | 7 | 41 |
| MayMay | 75 | 24° | 17° | 19.0° | 8.9 h | 5 | 21 |
| JuneJun | 94 | 28° | 20° | 22.3° | 11.3 h | 3 | 12 |
| JulyJul | 98 | 31° | 23° | 25.2° | 11.7 h | 1 | 5 |
| AugustAug | 97 | 32° | 23° | 26.4° | 10.5 h | 2 | 6 |
| SeptemberSep | 95 | 28° | 21° | 25.5° | 8.0 h | 5 | 34 |
| OctoberOct | 78 | 24° | 18° | 23.5° | 6.2 h | 7 | 65 |
| NovemberNov | 35 | 20° | 15° | 21.1° | 4.5 h | 11 | 120 |
| DecemberDec | 17 | 16° | 11° | 18.5° | 4.0 h | 12 | 113 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
36.80° N, 21.96° E · 40 m · Europe/Athens
Sea temperature in Koroni
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 22.6 – 24.6 °C
Swimming season: Jun – Nov
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Koroni ranges from 15.8 °C in February to 26.4 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to November.
From November to February the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 25.3 and 27.5 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 16.8° | 16.0° | 17.7° | cold |
| FebruaryFeb | 15.8° | 15.2° | 16.5° | cold |
| MarchMar | 15.8° | 15.1° | 16.4° | cold |
| AprilApr | 16.6° | 15.8° | 17.2° | cold |
| MayMay | 19.0° | 18.1° | 19.8° | fresh |
| JuneJun | 22.3° | 21.2° | 23.6° | refreshing |
| JulyJul | 25.2° | 24.2° | 26.5° | pleasant |
| AugustAug | 26.4° | 25.3° | 27.5° | warm |
| SeptemberSep | 25.5° | 24.3° | 26.8° | pleasant |
| OctoberOct | 23.5° | 22.6° | 24.6° | pleasant |
| NovemberNov | 21.1° | 19.8° | 22.1° | refreshing |
| DecemberDec | 18.5° | 17.7° | 19.4° | fresh |
Sunshine hours in Koroni
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 6.2 of 11.3 hours of daylight in Koroni, 55 % of the daylight hours.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
Rain in Koroni: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Koroni has about 7 rainy days with 65 mm of rain in total.
UV index in Koroni
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 5 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in June (UV 10).
Minutes until sunburn in October
- Very fair skin
- about 30 min
- Fair skin
- about 35 min
- Light brown skin
- about 50 min
- Olive skin
- about 65 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind and clouds in Koroni
How breezy and how cloudy Koroni is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Koroni typically peaks at 15 km/h during the day: Beaufort 3, gentle breeze.
Breezy months for windsurfing and kiting
The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 40 % of the sky over Koroni: mostly sunny, with about 6.2 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat and humidity in Koroni
How often the day gets hot in Koroni (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Koroni has about 0 hot days, with an average daytime high of 24 °C: pleasant. Heat plays no part this month.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Planning a trip to Koroni
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Koroni in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Koroni has its best school-holiday weather during the summer holidays (score 97) and its weakest during the Christmas holidays (score 16).
- 33
Easter holidays
Mar – Apr
Poor
- 19 °C by day
- Sea 16 °C
- 7.6 h of sun a day
- 8 rainy days a month
Good for: Sightseeing & walks
- 79
May half-term
May – Jun
Good
- 25 °C by day
- Sea 20 °C
- 9.4 h of sun a day
- 5 rainy days a month
Good for: Sightseeing & walks
- 97
Summer holidays
Jul – Aug
ExcellentBest holidays
- 32 °C by day
- Sea 26 °C
- 10.9 h of sun a day
- 1 rainy day a month
Good for: Beach & swimming
- 78
October half-term
Oct
Good
- 24 °C by day
- Sea 24 °C
- 6.2 h of sun a day
- 7 rainy days a month
Good for: Beach & swimming, Sightseeing & walks
- 16
Christmas holidays
Dec – Jan
Poor
- 15 °C by day
- Sea 18 °C
- 4.4 h of sun a day
- 12 rainy days a month
Keep in mind: Frequent rain
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 3 h 25 min
- Distance
- 2,400 km
- Time zone
- UTC+3
- Jet lag
- Hardly any (under 3 h)
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Compare & alternatives
Koroni compared
Put Koroni side by side with another destination.
Koroni vs Methoni
In October the holiday weather in Koroni and Methoni is about equally good (score 78 vs 78). During the day it is about as warm in Methoni as in Koroni. The sea in Methoni is 1 °C cooler.
| in October | Koroni | Methoni |
|---|---|---|
| Holiday weather score | 78 | 78 |
| Daytime high | 24° | 24° |
| Sea | 24° | 23° |
| Sunshine | 6 h | 6 h |
| Rainy days | 7 | 7 |
| Best time | Jun – Sep | Jun – Sep |
Through the year
Greece in October: the best places
In October, Koroni ranks 21 among the 31 nearest destinations in this country.
- Piraeus24°23°91
- 2Mycenae24°90
- 3Sparta25°88
- 4Tolón25°23°85
- 5Nafplio25°23°85
- 6Árgos25°23°84
- 7Tripoli22°83
- 8Spetses24°23°83
- 21KoroniThis page24°24°78
Near Koroni
Other destinations close by.
Places with a climate like Koroni
Destinations whose weather through the year is closest to Koroni's – good alternatives.
Frequently asked questions about Koroni
When is the best time to visit Koroni?
The best time to visit Koroni is from June to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Koroni?
The sea temperature in Koroni ranges from 15.8 °C in February to 26.4 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to November.
Can you swim in Koroni in October?
Yes. In October the sea averages 23.5 °C – pleasant for swimming.
What is the warmest month in Koroni?
August is the warmest month, with average highs of 32 °C and nights around 23 °C. January is the coolest month at 15 °C.
When does it rain most in Koroni?
Rain is frequent in December; the wettest month is November with 120 mm. The driest month is July with 5 mm.
How many hours of sunshine does Koroni get?
Koroni gets around 2,730 hours of sunshine a year. The sunniest month is July with 11.7 hours a day; in December there are 4.0 hours a day.
What time zone is Koroni in?
Koroni is on UTC+2 in January and UTC+3 in July.
How long is the flight from London to Koroni?
A nonstop flight from London to Koroni takes about 3 h 25 min, for a straight-line distance of about 2,400 km.
Which school holidays are best for Koroni?
Koroni has its best school-holiday weather during the summer holidays (score 97) and its weakest during the Christmas holidays (score 16). Holiday ratings (0–100): Easter holidays 33, May half-term 79, summer holidays 97, October half-term 78, Christmas holidays 16.