Climate and monthly weather forecastSkiathos, Greece
Climate and monthly weather forecast
The climate of Skiathos
Skiathos, a picturesque locale in Greece, sits comfortably within the Köppen Csa climate classification domain, characterized by a Mediterranean climate comprised of hot summers. The interplay of various weather phenomena in Skiathos shapes an intriguing twirl of temperature, humidity, rain, snow, and wind dynamics across the months.The island experiences an annual temperature oscillation from 9.3°C (48.7°F) to 27°C (80.6°F). It endures a moderately humid environment predominantly, with relative humidity oscillating between 66% and 71%. Rainfall varies considerably, reaching its peak in February with 62mm (2.44") and hitting the low point in August with only 17mm (0.67"). The average count of rainy days per month falls within a span from 6.6 days to 14.3 days, reflecting the substantial annual rainfall prevalence.
Regarding snowfall, no significant events were recorded, putting this parameter at a constant value throughout the year. Sea temperature experiences an annual fluctuation from 14.2°C (57.6°F) to 26.3°C (79.3°F), featuring an inviting warmth for outdoor water-based activities. Daylight duration seems to follow a predictable pattern, peaking around midsummer at 14.9 hours per day and then slowly receding down to 9.5 hours per day in December. Sunshine hours range from a meager 4.9 hours in January to an impressive 11.9 hours in August. Wind velocity varies from 13.1km/h (8.1mph) to 20.7km/h (12.9mph) while cloud cover fluctuates significantly from 10% to 48%.
The best time to visit Skiathos
Based on the weather parameters outlined above, the months from May to September stand out as ideal for visiting Skiathos. During this period, the average high temperature ranges from 20.4°C (68.7°F) to 27°C (80.6°F), and the sea temperature maintains an inviting warmth from 18.1°C (64.6°F) to 26.3°C (79.3°F). Sunshine prevails most of the days with an average duration between 9.5 hours and 11.9 hours. Relative humidity hovers around 68% to 66%, fostering comfortable conditions. Rainfall diminishes significantly, with a span from 17mm (0.67") to 34mm (1.34"), marking this period as the driest phase.The worst time to visit Skiathos
Weather patterns suggest January and February as less preferable months to visit Skiathos. With the lowest average high temperature, peaking only at 11.8°C (53.2°F) and 12.6°C (54.7°F) respectively, these months also witness the highest rainfall, with precipitation levels reaching as high as 56mm (2.2") and 62mm (2.44"). The hours of sunshine decrease to 4.9 and 5.9, while the sea temperature noses down to 14.8°C (58.6°F) and 14.3°C (57.7°F), considerably reducing opportunities for water activities.Spring weather in Skiathos
Spring in Skiathos, a period from March to May, witnesses a gradual upgrade in temperatures from 14.1°C (57.4°F) to 20.4°C (68.7°F). The rainfall tends to decline moderately, falling from 49mm (1.93") in March to 34mm (1.34") in May. Relative humidity sees a minor decline from 70% in March to 69% in May. Days elongate, and sunlight endures, increasing the daylight from 12 hours in March to 14.3 hours in May.Summer weather in Skiathos
June to August denotes the spirited summer months of Skiathos. Daytime temperature highs are between 24.3°C (75.7°F) and 27°C (80.6°F), making it the hottest period of the year. Rainfall becomes scarcer, decreasing to as low as 17mm (0.67") in August. Hours of sunshine hit their maximum, with an impressive constant range of 11.7 hours to 11.9 hours.Autumn weather in Skiathos
Autumn, ranging from September to November, carries a gradual cooling trend, with high temperatures declining from 20.3°C (68.5°F) to 17.1°C (62.8°F). However, rainfall starts escalating from 49mm (1.93") in September to 54mm (2.13") in November. Although daylight hours begin to shrink from 12.4 hours to 10.1 hours, the autumn months still offer a reasonably good amount of sunshine.Winter weather in Skiathos
Winter, experienced during December through February, presents the coldest phase of the year in Skiathos. With high temperatures wavering between 17.1°C (62.8°F) in December and reaching the lowest at 11.8℃ in January, sunlit hours are in their minimal range of 9.5 - 10.7 hours. Rainfall amplifies, touching its peak in February with 62mm (2.44"). While this season may lack the traditional charm of Skiathos weather, it carries a distinct allure of its own.Weather in January
The weather in Skiathos, Greece in January leans towards the colder side with possible snowfall. There's a noticeable trend that January is the windiest month, with wind speeds often reaching up to 20.5km/h (12.7mph), and gusts may go up to 27.9km/h (17.3mph). Weather in January »Weather in February
As February ushers in, there's a slight upward shift in Skiathos' temperatures. While no snowfall is expected in February, rainfall persists with 62mm (2.44") averaged over the month. February shares most of its climatic characteristics with January, only more temperate in comparison. Weather in February »Weather in March
March in Skiathos sees the transition from late winters to early spring. Unlike February, which receives an average rainfall of 62mm (2.44"), March observes a decline to 49mm (1.93"). Days start getting longer, yielding more daylight for tourists to explore the city. Weather in March »Weather in April
April solidly marks the onset of spring in Skiathos. Temperature lows climb to an average of 13.3°C (55.9°F), indicating an end to the colder months. As spring takes effect, the city bursts into bloom providing a scenic view of Skiathos. Weather in April »Weather in May
The month of May in Skiathos marks the advent of summer with temperature highs soaring to an average of 20.4°C (68.7°F). The warm climate dominates as spring recedes, making way for sunny days and clear skies. Tourists flock to the city to relish the pristine beaches and enjoy aquatic activities in the refreshing sea. Weather in May »Weather in June
Come June, summer is in full swing in Skiathos. Testament to this is the significantly high average sea temperature of 22.9°C (73.2°F). This is the time when the city beams with energy and sunlight, making it the perfect setting for outdoor adventures. Weather in June »Weather in July
July in Skiathos records the highest UV index of 7, signifying potent sun strength. Basking under the sun is a common activity, and the beaches bristle with sun worshippers and parasols. While the midday sun can get quite intense, the cool sea breezes balance it out. Weather in July »Weather in August
August brings in a subtle fall in temperature from July's peak, marking the last full month of summer. While it retains much of July’s weather pattern, the highest sea temperature, hitting 26.3°C (79.3°F), sets it apart. The mild decline in temperature provides relief from the scorching summer and makes sightseeing more enjoyable. Weather in August »Weather in September
September in Skiathos heralds the arrival of autumn with temperatures gradually coming down from the summer highs. Despite being fall, September experiences an increase in rainfall to 49mm (1.93") from the previous month’s 17mm (0.67"). Weather in September »Weather in October
October in Skiathos is characterized by a further fall in temperature, marking the swing towards winter. In alignment with fall, the rainfall increases to 54mm (2.13") in October from September's 49mm (1.93"). While the climate gets cooler, tourists can still enjoy the city’s attractions minus the summer crowds. Weather in October »Weather in November
November in Skiathos sees a stark contrast from the preceding months, with temperature highs dropping to an average of 17.1°C (62.8°F). Rainfall remains steady with November experiencing an average of 39mm (1.54"). The late autumn vibe combined with light showers make for a somber yet beautiful atmospheric setting. Weather in November »Weather in December
December in Skiathos ushers in wintertime, seeing further drop in temperatures. With the highest barometric pressure registered at 1018.7mb, it is noticeably cooler and crispier. Despite the chill, the festivities bring about a sense of warmth and cheer in the city. Weather in December »Updated: Jan 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In Skiathos, January is known for its average lowest temperatures, reaching a high of 11.8°C (53.2°F) and a low of 9.3°C (48.7°F).
January, February and November, with an average relative humidity of 71%, are most humid months in Skiathos.
Throughout the year, in Skiathos, Greece, there are 133.4 rainfall days, and 511mm (20.12") of precipitation is accumulated.
January is the only month when snow falls.
The month with the most snowfall in Skiathos, Greece, is January, when snow falls for 0.3 days and typically aggregates up to 2mm (0.08") of snow.
Throughout the year, in Skiathos, Greece, there are 0.3 snowfall days, and 2mm (0.08") of snow is accumulated.
The month with the least sunshine in Skiathos, Greece, is January, with an average of 4.9h of sunshine.
January, February and December, with an average maximum UV index of 3, are months with the lowest UV index.
The month with the most rainfall is February, when the rain falls for 12.7 days and typically aggregates up to 62mm (2.44") of precipitation.
February through December are months without snowfall.
The month with the coldest seawater is March, with an average sea temperature of 14.2°C (57.6°F).
The month with the longest days is June, with an average of 14h and 54min of daylight.
The months with the lowest humidity are July through September, with an average relative humidity of 66%.
The months with the highest UV index are July and August, with an average maximum UV index of 7.
August is the month when Skiathos, Greece, sees the average highest temperatures, with a high of 27°C (80.6°F) and a low of 24.8°C (76.6°F).
The month with the least rainfall in Skiathos is August, when the rain falls for 7.1 days and typically collects 17mm (0.67") of precipitation.
The month with the warmest seawater in Skiathos is August, with an average sea temperature of 26.3°C (79.3°F).
The month with the most sunshine in Skiathos, Greece, is August, with an average of 11.9h of sunshine.
On Sunday, 27. October 2024, at 04:00, Daylight Saving Time ends, and the time zone changes from EEST to EET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 03:00, and the time zone reverts from EET to EEST.
December has the shortest days of the year in Skiathos, with an average of 9h and 30min of daylight.
Average temperature
Skiathos, Greece
The warmest month (with the highest average high temperature) is August (27°C).
The month with the lowest average high temperature is January (11.8°C).
The month with the highest average low temperature is August (24.8°C).
The coldest month (with the lowest average low temperature) is January (9.3°C).
Average pressure
Skiathos, Greece
- Average pressure in January:
1017.2mbar - Average pressure in February:
1015.8mbar - Average pressure in March:
1015.2mbar - Average pressure in April:
1014.4mbar - Average pressure in May:
1013.2mbar - Average pressure in June:
1012.4mbar
- Average pressure in July:
1011.8mbar - Average pressure in August:
1013mbar - Average pressure in September:
1015mbar - Average pressure in October:
1017.5mbar - Average pressure in November:
1018mbar - Average pressure in December:
1018.7mbar
The month with the highest atmospheric pressure is December (1018.7mbar).
The month with the lowest atmospheric pressure is July (1011.8mbar).
Average wind speed
Skiathos, Greece
- Average wind speed in January:
20.5km/h - Average wind speed in February:
20.7km/h - Average wind speed in March:
18.2km/h - Average wind speed in April:
15.1km/h - Average wind speed in May:
13.7km/h - Average wind speed in June:
13.1km/h
- Average wind speed in July:
13.1km/h - Average wind speed in August:
15.2km/h - Average wind speed in September:
15.5km/h - Average wind speed in October:
16.3km/h - Average wind speed in November:
17km/h - Average wind speed in December:
20.1km/h
The windiest month (with the highest average wind speed) is February (20.7km/h).
The calmest months (with the lowest average wind speed) are June and July (13.1km/h).
Average humidity
Skiathos, Greece
The months with the highest relative humidity are January, February and November (71%).
The months with the lowest relative humidity are July, August and September (66%).
Average rainfall
Skiathos, Greece
The wettest month (with the highest rainfall) is February (62mm).
The driest month (with the least rainfall) is August (17mm).
Average rainfall days
Skiathos, Greece
- Average rainfall days in January:
14.3 days - Average rainfall days in February:
12.7 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
10.9 days - Average rainfall days in May:
11.2 days - Average rainfall days in June:
10.4 days
- Average rainfall days in July:
6.6 days - Average rainfall days in August:
7.1 days - Average rainfall days in September:
10.8 days - Average rainfall days in October:
11.8 days - Average rainfall days in November:
11.9 days - Average rainfall days in December:
12.9 days
The month with the highest number of rainy days is January (14.3 days).
The month with the least rainy days is July (6.6 days).
Average snowfall
Skiathos, Greece
The month with the highest snowfall is January (2mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days
Skiathos, Greece
- Average snowfall days in January:
0.3 days - Average snowfall days in February:
0 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature
Skiathos, Greece
The best month for swimming (with the highest average sea temperature) is August (26.3°C).
The coldest month (with the lowest average sea temperature) is March (14.2°C).
Average daylight / Average sunshine
Skiathos, Greece
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
4h and 54min - Average sunshine in February:
5h and 54min - Average sunshine in March:
7h and 36min - Average sunshine in April:
9h and 48min - Average sunshine in May:
11h and 12min - Average sunshine in June:
11h and 42min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 54min - Average sunshine in September:
9h and 30min - Average sunshine in October:
6h and 24min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 18min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days
Skiathos, Greece
- Average sunshine days in January:
14.6 days - Average sunshine days in February:
13.5 days - Average sunshine days in March:
15.9 days - Average sunshine days in April:
17 days - Average sunshine days in May:
17.8 days - Average sunshine days in June:
16.8 days
- Average sunshine days in July:
22.5 days - Average sunshine days in August:
21.3 days - Average sunshine days in September:
16.9 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
16 days - Average sunshine days in December:
15.9 days
The month with the most sunshine days is July (22.5 days).
The month with the least sunshine days is February (13.5 days).
Average UV index
Skiathos, Greece
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover
Skiathos, Greece
The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility
Skiathos, Greece
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
