AI-generatedSikinos at a glance
- Best time
- Jun – Sep
- Warmest month
- Aug · 27°
- Warmest sea
- Aug · 24.5°
- Sunshine a year
- 2,830 h
- Rain a year
- 357 mm
- Climate
- Mediterranean
- Time zone
- UTC+2 / UTC+3
- Elevation
- 101 m
Climate in Sikinos
Sikinos has a Mediterranean climate with warm to hot, dry summers and mild, wetter winters. August is the warmest month with average highs of 27 °C, while January is the coolest at 15 °C. With around 2,830 hours of sunshine a year, Sikinos is sunny; July is the sunniest month with 11.4 hours a day.
Holiday weather through the year
Best time to visit Sikinos
The best time to visit Sikinos is from June to September. For a beach holiday – sea from 21 °C, warm and mostly dry – go from June to September. For sightseeing, day trips and hiking, conditions are most comfortable from March to December. The wettest month is January with 77 mm of precipitation.
Sikinos through the seasons
How the weather changes over the seasons, with averages for each.
Sikinos in spring
Mar – May
Fair
- 16–22 °C by day
- Sea 17 °C
- 8.2 h of sun a day
- 12 rainy days in all
Sikinos in summer
Jun – Aug
Excellent
- 25–27 °C by day
- Sea 24 °C
- 11.1 h of sun a day
- 1 rainy day in all
Sikinos in autumn
Sep – Nov
Good
- 19–26 °C by day
- Sea 22 °C
- 7.2 h of sun a day
- 11 rainy days in all
Sikinos in winter
Dec – Feb
Poor
- 15–16 °C by day
- Sea 17 °C
- 4.4 h of sun a day
- 31 rainy days in all
Which month for what?
Beach & swimming
Jun – Sep
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Mar – Dec
15–28 °C and not too much rain
Find your perfect month
Tell us what you like and we rate every month in Sikinos for you.
Your best months: 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 forSightseeing & walks
A typical day in October
- Morning, 08:00: about 18°
- Midday, 13:00: about 22°
- Afternoon, 16:00: about 22°
- Evening, 20:00: about 20°
- Night, 23:00: about 19°
07:2618:45
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 07:10–08:01 · evening 18:10–19:01
- Blue hour
- Morning 07:00–07:10 · evening 19:01–19:11
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 Sikinos compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 24° at the start of the month to 21° at the end. The sea cools from 23° to 21°. The days get 1.1 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 24° | 21° |
| Night-time low | 19° | 16° |
| Sea | 23° | 21° |
| Daylight | 11.9 h | 10.8 h |
What is the weather like in Sikinos in October?
In October, Sikinos is warm: daytime highs average 23 °C, and nights cool down to about 18 °C. The sea averages 21.9 °C – refreshing for a swim. The sun shines for around 7.2 hours a day. Rain is rare: about 4 days bring 26 mm in total. It is often windy: on a typical day the wind peaks at around 32 km/h. All in all, October is a good month for a holiday in Sikinos.
More details for October
- Daylight
- 11 h 19 min07:26 – 18:45
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 5 daysdew point 18 °C or moreAll months
- Wind
- 32 km/haverage daily peakAll months
- Cloud cover
- 30 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+3offset from UTC
How the score comes together
- Temperatureweight 35 %58 %
- Seaweight 25 %70 %
- Sunshineweight 20 %70 %
- Few rainy daysweight 20 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Swimwear
- Sunscreen
- Windproof jacket
Compare two months in Sikinos
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
August has the better holiday weather in Sikinos: score 100 against 72. In August, days are 4 °C warmer than in October. The sea is 3 °C warmer in August. August has 4 fewer rainy days. The sun shines 3 hours longer a day in August.
| Month | October | August |
|---|---|---|
| Holiday weather score | 72 | 100better |
| Daytime high | 23° | 27° |
| Night-time low | 18° | 23° |
| Sea | 21.9° | 24.5° |
| Sunshine | 7.2 h | 10.7 hbetter |
| Rainy days | 4 | 0better |
| Rainfall | 26 mm | 1 mmbetter |
| Muggy days | 5better | 28 |
Based on the climate averages 1996–2025.
Sikinos month by month
The typical weather for every month at a glance.
14January15° · Sea 17° · 4.3 h
In January, Sikinos is cool: daytime highs average 15 °C, and nights cool down to about 10 °C. The sea averages 16.5 °C – swimming is only for the hardy. Expect around 4.3 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 77 mm in total. It is often windy: on a typical day the wind peaks at around 38 km/h. All in all, January is not an ideal month for a holiday in Sikinos.
Sikinos in January19February15° · Sea 16° · 5.0 h
In February, Sikinos is cool: daytime highs average 15 °C, and nights cool down to about 10 °C. The sea averages 16.1 °C – swimming is only for the hardy. Expect around 5.0 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 65 mm in total. It is often windy: on a typical day the wind peaks at around 39 km/h. All in all, February is not an ideal month for a holiday in Sikinos.
Sikinos in February28March16° · Sea 16° · 6.6 h
In March, Sikinos is mild: daytime highs average 16 °C, and nights cool down to about 12 °C. The sea averages 16.2 °C – swimming is only for the hardy. The sun shines for around 6.6 hours a day. Rain falls on about 7 days, adding up to 42 mm. It is often windy: on a typical day the wind peaks at around 36 km/h. All in all, March is not an ideal month for a holiday in Sikinos.
Sikinos in March38April19° · Sea 17° · 8.5 h
In April, Sikinos is mild: daytime highs average 19 °C, and nights cool down to about 14 °C. The sea averages 16.9 °C – swimming is only for the hardy. The sun shines for around 8.5 hours a day. Rain is rare: about 3 days bring 17 mm in total. It is often windy: on a typical day the wind peaks at around 32 km/h. All in all, April is not an ideal month for a holiday in Sikinos.
Sikinos in April64May22° · Sea 19° · 9.4 h
In May, Sikinos is warm: daytime highs average 22 °C, and nights cool down to about 17 °C. The sea averages 18.9 °C – bracing, so a wetsuit helps for longer swims. With around 9.4 hours of sunshine a day, there is plenty of sun. It hardly ever rains. It is often windy: on a typical day the wind peaks at around 29 km/h. All in all, May is a good month for a holiday in Sikinos.
Sikinos in May93June25° · Sea 22° · 11.3 h
In June, Sikinos is warm: daytime highs average 25 °C, and even at night it stays warm at around 21 °C. The sea averages 22.1 °C – refreshing for a swim. With around 11.3 hours of sunshine a day, there is plenty of sun. It hardly ever rains. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 29 km/h. All in all, June is an excellent month for a holiday in Sikinos.
Sikinos in June99July27° · Sea 24° · 11.4 h
In July, Sikinos is hot: daytime highs average 27 °C, and even at night it stays warm at around 23 °C. The sea averages 23.8 °C – pleasant for swimming. With around 11.4 hours of sunshine a day, there is plenty of sun. It hardly ever rains. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 32 km/h. All in all, July is an excellent month for a holiday in Sikinos.
Sikinos in July100August27° · Sea 25° · 10.7 h
In August, Sikinos is hot: daytime highs average 27 °C, and even at night it stays warm at around 23 °C. The sea averages 24.5 °C – pleasant for swimming. With around 10.7 hours of sunshine a day, there is plenty of sun. It hardly ever rains. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 32 km/h. All in all, August is an excellent month for a holiday in Sikinos.
Sikinos in August100September26° · Sea 24° · 9.2 h
In September, Sikinos is warm: daytime highs average 26 °C, and even at night it stays warm at around 21 °C. The sea averages 23.9 °C – pleasant for swimming. With around 9.2 hours of sunshine a day, there is plenty of sun. It hardly ever rains. The air is often humid and muggy. It is often windy: on a typical day the wind peaks at around 31 km/h. All in all, September is an excellent month for a holiday in Sikinos.
Sikinos in September72October23° · Sea 22° · 7.2 h
In October, Sikinos is warm: daytime highs average 23 °C, and nights cool down to about 18 °C. The sea averages 21.9 °C – refreshing for a swim. The sun shines for around 7.2 hours a day. Rain is rare: about 4 days bring 26 mm in total. It is often windy: on a typical day the wind peaks at around 32 km/h. All in all, October is a good month for a holiday in Sikinos.
Sikinos in October34November19° · Sea 20° · 5.3 h
In November, Sikinos is mild: daytime highs average 19 °C, and nights cool down to about 15 °C. The sea averages 19.6 °C – bracing, so a wetsuit helps for longer swims. Expect around 5.3 hours of sunshine a day. Rain falls on about 6 days, adding up to 42 mm. It is often windy: on a typical day the wind peaks at around 33 km/h. All in all, November is not an ideal month for a holiday in Sikinos.
Sikinos in November16December16° · Sea 18° · 3.8 h
In December, Sikinos is mild: daytime highs average 16 °C, and nights cool down to about 12 °C. The sea averages 17.6 °C – bracing, so a wetsuit helps for longer swims. The sun is scarce, with only about 3.8 hours a day. Rain is frequent, with about 10 rainy days and 71 mm in total. It is often windy: on a typical day the wind peaks at around 37 km/h. All in all, December is not an ideal month for a holiday in Sikinos.
Sikinos in DecemberClimate in detail
Year & climate table
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Sikinos
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 5 days (dew point 18 °C or more).
The coolest nights are in January (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 92 days a year, mostly from June to September.
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° | 16.5° | 4.3 h | 11 | 77 |
| FebruaryFeb | 19 | 15° | 10° | 16.1° | 5.0 h | 10 | 65 |
| MarchMar | 28 | 16° | 12° | 16.2° | 6.6 h | 7 | 42 |
| AprilApr | 38 | 19° | 14° | 16.9° | 8.5 h | 3 | 17 |
| MayMay | 64 | 22° | 17° | 18.9° | 9.4 h | 2 | 9 |
| JuneJun | 93 | 25° | 21° | 22.1° | 11.3 h | 0 | 1 |
| JulyJul | 99 | 27° | 23° | 23.8° | 11.4 h | 0 | 1 |
| AugustAug | 100 | 27° | 23° | 24.5° | 10.7 h | 0 | 1 |
| SeptemberSep | 100 | 26° | 21° | 23.9° | 9.2 h | 1 | 6 |
| OctoberOct | 72 | 23° | 18° | 21.9° | 7.2 h | 4 | 26 |
| NovemberNov | 34 | 19° | 15° | 19.6° | 5.3 h | 6 | 42 |
| DecemberDec | 16 | 16° | 12° | 17.6° | 3.8 h | 10 | 71 |
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
36.70° N, 25.12° E · 101 m · Europe/Athens
Sea temperature
Sea temperature in Sikinos
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 20.9 – 23.0 °C
Swimming season: Jun – Oct
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Sikinos ranges from 16.1 °C in February to 24.5 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to October.
From November to March 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 23.4 and 25.6 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 16.5° | 15.7° | 17.7° | cold |
| FebruaryFeb | 16.1° | 15.4° | 16.7° | cold |
| MarchMar | 16.2° | 15.7° | 16.9° | cold |
| AprilApr | 16.9° | 16.2° | 17.5° | cold |
| MayMay | 18.9° | 18.3° | 19.5° | fresh |
| JuneJun | 22.1° | 21.5° | 23.0° | refreshing |
| JulyJul | 23.8° | 22.9° | 24.5° | pleasant |
| AugustAug | 24.5° | 23.4° | 25.6° | pleasant |
| SeptemberSep | 23.9° | 22.6° | 24.9° | pleasant |
| OctoberOct | 21.9° | 20.9° | 23.0° | refreshing |
| NovemberNov | 19.6° | 18.3° | 20.6° | fresh |
| DecemberDec | 17.6° | 16.8° | 18.5° | fresh |
Sunshine
Sunshine hours in Sikinos
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 7.2 of 11.3 hours of daylight in Sikinos, 64 % 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
Rain in Sikinos: 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, Sikinos has about 4 rainy days with 26 mm of rain in total.
UV index
UV index in Sikinos
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 60 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 & clouds
Wind and clouds in Sikinos
How breezy and how cloudy Sikinos 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 Sikinos typically peaks at 32 km/h during the day: Beaufort 5, fresh breeze.
Breezy months for windsurfing and kiting
From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting, and here it is that strong all year.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 30 % of the sky over Sikinos: mostly sunny, with about 7.2 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 & humidity
Heat and humidity in Sikinos
How often the day gets hot in Sikinos (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, Sikinos has about 0 hot days, with an average daytime high of 23 °C: some hot or muggy days. Single hot or muggy days are possible; a hat and water bottle are enough.
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 Sikinos
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Sikinos 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.
Sikinos has its best school-holiday weather during the summer holidays (score 100) and its weakest during the Christmas holidays (score 15).
- 35
Easter holidays
Mar – Apr
Poor
- 18 °C by day
- Sea 17 °C
- 7.9 h of sun a day
- 4 rainy days a month
Good for: Sightseeing & walks
- 70
May half-term
May – Jun
Good
- 23 °C by day
- Sea 20 °C
- 9.8 h of sun a day
- 2 rainy days a month
Good for: Sightseeing & walks
- 100
Summer holidays
Jul – Aug
ExcellentBest holidays
- 27 °C by day
- Sea 24 °C
- 10.9 h of sun a day
- 0 rainy days a month
Good for: Beach & swimming, Sightseeing & walks
- 72
October half-term
Oct
Good
- 23 °C by day
- Sea 22 °C
- 7.2 h of sun a day
- 4 rainy days a month
Good for: Sightseeing & walks
- 15
Christmas holidays
Dec – Jan
Poor
- 15 °C by day
- Sea 17 °C
- 4.1 h of sun a day
- 11 rainy days a month
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 3 h 40 min
- Distance
- 2,600 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.
Good to know: Greece
- Currency
- Euro (EUR)
- Language
- Greek
- Sockets
- Type C, F · 230 V
- Traffic
- Drives on the right
- Dialling code
- +30
- Emergency number
- 112
UK plugs need a travel adapter
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Compare & alternatives
Compare with another place
Sikinos compared
Put Sikinos side by side with another destination.
Sikinos vs Ios
In October the holiday weather in Sikinos and Ios is about equally good (score 72 vs 70). During the day Ios is 1 °C cooler than Sikinos. The sea is about equally warm.
| in October | Sikinos | Ios |
|---|---|---|
| Holiday weather score | 72 | 70 |
| Daytime high | 23° | 22° |
| Sea | 22° | 22° |
| Sunshine | 7 h | 7 h |
| Rainy days | 4 | 4 |
| Best time | Jun – Sep | Jun – Sep |
Through the year
Best places in the country
Greece in October: the best places
In October, Sikinos ranks 14 among the 31 nearest destinations in this country.
- Leipsoi23°95
- 2Heraklion25°23°88
- 3Malia25°23°88
- 4Elounda26°23°88
- 5Lavrio25°22°82
- 6Rethymno25°23°82
- 7Poros24°23°82
- 8Ýdra24°23°81
- 14SikinosThis page23°22°72
Places nearby
Near Sikinos
Other destinations close by.
Places with a similar climate
Places with a climate like Sikinos
Destinations whose weather through the year is closest to Sikinos's – good alternatives.
Frequently asked questions about Sikinos
When is the best time to visit Sikinos?
The best time to visit Sikinos 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 Sikinos?
The sea temperature in Sikinos ranges from 16.1 °C in February to 24.5 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to October.
Can you swim in Sikinos in October?
Yes. In October the sea averages 21.9 °C – refreshing for a swim.
What is the warmest month in Sikinos?
August is the warmest month, with average highs of 27 °C and nights around 23 °C. January is the coolest month at 15 °C.
When does it rain most in Sikinos?
The wettest month is January with 77 mm of precipitation. The driest month is July with 1 mm.
How many hours of sunshine does Sikinos get?
Sikinos gets around 2,830 hours of sunshine a year. The sunniest month is July with 11.4 hours a day; in December there are 3.8 hours a day.
What time zone is Sikinos in?
Sikinos is on UTC+2 in January and UTC+3 in July.
How long is the flight from London to Sikinos?
A nonstop flight from London to Sikinos takes about 3 h 40 min, for a straight-line distance of about 2,600 km.
Which school holidays are best for Sikinos?
Sikinos has its best school-holiday weather during the summer holidays (score 100) and its weakest during the Christmas holidays (score 15). Holiday ratings (0–100): Easter holidays 35, May half-term 70, summer holidays 100, October half-term 72, Christmas holidays 15.