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Olynthus weather & best time to visit

Sun, sea & sand

Olynthus at a glance

Best time
Jun – Sep
Warmest month
Aug · 30°
Warmest sea
Aug · 26.7°
Sunshine a year
2,800 h
Rain a year
594 mm
Climate
Temperate
Time zone
UTC+2 / UTC+3
Elevation
31 m

Climate in Olynthus

Olynthus has a temperate climate with warm summers and cool winters. August is the warmest month with average highs of 30 °C, while January is the coolest at 11 °C. With around 2,800 hours of sunshine a year, Olynthus is sunny; July is the sunniest month with 11.9 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Olynthus

The best time to visit Olynthus 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 April to June and from September to November. The wettest month is December with 82 mm of precipitation.

Olynthus through the seasons

How the weather changes over the seasons, with averages for each.

Olynthus in spring

Mar – May

41

Fair

  • 15–23 °C by day
  • Sea 16 °C
  • 8.1 h of sun a day
  • 24 rainy days in all

Olynthus in summer

Jun – Aug

99

Excellent

  • 27–30 °C by day
  • Sea 25 °C
  • 11.5 h of sun a day
  • 14 rainy days in all

Olynthus in autumn

Sep – Nov

59

Fair

  • 17–26 °C by day
  • Sea 21 °C
  • 6.6 h of sun a day
  • 21 rainy days in all

Olynthus in winter

Dec – Feb

18

Poor

  • 11–12 °C by day
  • Sea 15 °C
  • 4.3 h of sun a day
  • 25 rainy days in all

Which month for what?

Beach & swimming

Jun – Sep

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

Apr – Jun, Sep – Nov

15–28 °C and not too much rain

Find your perfect month

Tell us what you like and we rate every month in Olynthus for you.

Swimming in the sea
Sunshine
Little rain

Your best months: June – August

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

55

Holiday weather in October

Fair

Best time to visit: June – September

Good forSightseeing & walks

A typical day in October

  1. Morning, 08:00: about 15°
  2. Midday, 13:00: about 21°
  3. Afternoon, 16:00: about 21°
  4. Evening, 20:00: about 18°
  5. Night, 23:00: about 17°

07:3618:49

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 07:19–08:13 · evening 18:12–19:05
Blue hour
Morning 07:09–07:19 · evening 19:05–19:16

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 Olynthus compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 23° at the start of the month to 19° at the end. The sea cools from 23° to 20°. The days get 1.2 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high23°19°
Night-time low17°13°
Sea23°20°
Daylight11.8 h10.6 h

What is the weather like in Olynthus in October?

In October, Olynthus is warm: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 21.3 °C – refreshing for a swim. Expect around 6.4 hours of sunshine a day. Rain falls on about 7 days, adding up to 61 mm. All in all, October is a so-so month for a holiday in Olynthus.

More details for October

Daylight
11 h 13 min07:36 – 18:49
UV index
4 · moderateclear sky, noon (estimate)All months
Muggy days
1 daydew point 18 °C or moreAll months
Wind
15 km/haverage daily peakAll months
Cloud cover
50 %on averageAll months
Hot days
0 days30 °C or moreAll months
Snow days
0 days1 cm or more of fresh snow
Time zone
UTC+3offset from UTC

How the score comes together

  • Temperatureweight 35 %35 %
  • Seaweight 25 %61 %
  • Sunshineweight 20 %57 %
  • Few rainy daysweight 20 %79 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in October

  • Swimwear
  • Sunscreen
  • A jumper for the evenings

Compare two months in Olynthus

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

July has the better holiday weather in Olynthus: score 100 against 55. In July, days are 9 °C warmer than in October. The sea is 5 °C warmer in July. July has 3 fewer rainy days. The sun shines 6 hours longer a day in July.

October vs July, Olynthus
MonthOctoberJuly
Holiday weather score55100better
Daytime high21°30°
Night-time low15°22°
Sea21.3°26.0°
Sunshine6.4 h11.9 hbetter
Rainy days74better
Rainfall61 mm31 mmbetter
Muggy days1better22

Based on the climate averages 1996–2025.

Olynthus month by month

The typical weather for every month at a glance.

17January11° · Sea 14° · 4.0 h

In January, Olynthus is cool: daytime highs average 11 °C, and nights cool down to about 5 °C. The sea averages 14.4 °C – swimming is only for the hardy. Expect around 4.0 hours of sunshine a day. Rain falls on about 9 days, adding up to 58 mm. All in all, January is not an ideal month for a holiday in Olynthus.

Olynthus in January
23February12° · Sea 14° · 5.4 h

In February, Olynthus is cool: daytime highs average 12 °C, and nights cool down to about 6 °C. The sea averages 13.9 °C – swimming is only for the hardy. Expect around 5.4 hours of sunshine a day. Rain falls on about 8 days, adding up to 49 mm. All in all, February is not an ideal month for a holiday in Olynthus.

Olynthus in February
25March15° · Sea 14° · 6.7 h

In March, Olynthus is cool: daytime highs average 15 °C, and nights cool down to about 8 °C. The sea averages 14.0 °C – swimming is only for the hardy. The sun shines for around 6.7 hours a day. Rain is frequent, with about 9 rainy days and 61 mm in total. All in all, March is not an ideal month for a holiday in Olynthus.

Olynthus in March
32April18° · Sea 15° · 8.1 h

In April, Olynthus is mild: daytime highs average 18 °C, and nights cool down to about 11 °C. The sea averages 15.1 °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 42 mm. All in all, April is not an ideal month for a holiday in Olynthus.

Olynthus in April
66May23° · Sea 19° · 9.6 h

In May, Olynthus is warm: daytime highs average 23 °C, and nights cool down to about 16 °C. The sea averages 18.8 °C – bracing, so a wetsuit helps for longer swims. With around 9.6 hours of sunshine a day, there is plenty of sun. Rain falls on about 7 days, adding up to 46 mm. All in all, May is a good month for a holiday in Olynthus.

Olynthus in May
96June27° · Sea 23° · 11.2 h

In June, Olynthus is hot: daytime highs average 27 °C, and even at night it stays warm at around 20 °C. The sea averages 23.3 °C – pleasant for swimming. With around 11.2 hours of sunshine a day, there is plenty of sun. Rain falls on about 5 days, adding up to 29 mm. All in all, June is an excellent month for a holiday in Olynthus.

Olynthus in June
100July30° · Sea 26° · 11.9 h

In July, Olynthus is hot: daytime highs average 30 °C, and even at night it stays warm at around 22 °C. The sea averages 26.0 °C – lovely and warm for swimming. With around 11.9 hours of sunshine a day, there is plenty of sun. Rain is rare: about 4 days bring 31 mm in total. On about 15 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 Olynthus.

Olynthus in July
100August30° · Sea 27° · 11.4 h

In August, Olynthus is hot: daytime highs average 30 °C, and even at night it stays warm at around 22 °C. The sea averages 26.7 °C – lovely and warm for swimming. With around 11.4 hours of sunshine a day, there is plenty of sun. Rain is rare: about 4 days bring 28 mm in total. On about 16 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 Olynthus.

Olynthus in August
96September26° · Sea 25° · 8.8 h

In September, Olynthus is warm: daytime highs average 26 °C, and nights cool down to about 19 °C. The sea averages 24.6 °C – pleasant for swimming. The sun shines for around 8.8 hours a day. Rain falls on about 7 days, adding up to 50 mm. All in all, September is an excellent month for a holiday in Olynthus.

Olynthus in September
55October21° · Sea 21° · 6.4 h

In October, Olynthus is warm: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 21.3 °C – refreshing for a swim. Expect around 6.4 hours of sunshine a day. Rain falls on about 7 days, adding up to 61 mm. All in all, October is a so-so month for a holiday in Olynthus.

Olynthus in October
25November17° · Sea 18° · 4.7 h

In November, Olynthus is mild: daytime highs average 17 °C, and nights cool down to about 11 °C. The sea averages 18.2 °C – bracing, so a wetsuit helps for longer swims. Expect around 4.7 hours of sunshine a day. Rain falls on about 8 days, adding up to 57 mm. All in all, November is not an ideal month for a holiday in Olynthus.

Olynthus in November
15December12° · Sea 16° · 3.6 h

In December, Olynthus is cool: daytime highs average 12 °C, and nights cool down to about 7 °C. The sea averages 15.8 °C – swimming is only for the hardy. The sun is scarce, with only about 3.6 hours a day. Rain is frequent, with about 9 rainy days and 82 mm in total. All in all, December is not an ideal month for a holiday in Olynthus.

Olynthus in December

Climate in detail

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Olynthus

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Cold 0–8°
  • Cool 8–15°
  • Pleasant 15–20°
  • Warm 20–24°
  • muggy month (15+ muggy days)

PleasantOctober: nights around 15°. Ideal for sleeping, often with the window open. Muggy on about 1 day (dew point 18 °C or more).

The coolest nights are in January (5°), the warmest in August (22°). Tropical nights of 20 °C and more are the rule from June to August; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) in May and from September to October. Nights fall below 8 °C on average from December to February, so the room should be heated. It is muggy (dew point 18 °C or more) on about 67 days a year, mostly from July to August.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 21°Night 15°Sea 21°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan1711°5°14.4°4.0 h958
FebruaryFeb2312°6°13.9°5.4 h849
MarchMar2515°8°14.0°6.7 h961
AprilApr3218°11°15.1°8.1 h742
MayMay6623°16°18.8°9.6 h746
JuneJun9627°20°23.3°11.2 h529
JulyJul10030°22°26.0°11.9 h431
AugustAug10030°22°26.7°11.4 h428
SeptemberSep9626°19°24.6°8.8 h750
OctoberOct5521°15°21.3°6.4 h761
NovemberNov2517°11°18.2°4.7 h857
DecemberDec1512°7°15.8°3.6 h982

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

40.29° N, 23.34° E · 31 m · Europe/Athens

Swimming calendar

Sea temperature in Olynthus

Monthly sea surface temperature with the range of cooler and warmer years.

Sea in October21.3°Crefreshing

8 in 10 years: 20.1 – 22.7 °C

Swimming season: Jun – Oct

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 21.3°8 in 10 years 20.1° – 22.7°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Olynthus ranges from 13.9 °C in February to 26.7 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to October.

From October 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 25.8 and 27.4 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan14.4°13.4°15.5°cold
FebruaryFeb13.9°12.9°14.9°cold
MarchMar14.0°13.2°14.8°cold
AprilApr15.1°14.2°16.0°cold
MayMay18.8°17.7°19.8°fresh
JuneJun23.3°22.3°24.3°pleasant
JulyJul26.0°25.3°27.1°warm
AugustAug26.7°25.8°27.4°warm
SeptemberSep24.6°23.5°25.4°pleasant
OctoberOct21.3°20.1°22.7°refreshing
NovemberNov18.2°17.1°19.4°fresh
DecemberDec15.8°14.8°16.9°cold
Sunshine

Sunshine hours in Olynthus

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
2,800 hours
Sunniest month
Jul · 11.9 h a day
Least sunshine
Dec · 3.6 h a day
OctoberSunshine 6.4 hDaylight 11.2 hShare of daylight 57 %
SunshineDaylight

In October, the sun shines for about 6.4 of 11.2 hours of daylight in Olynthus, 57 % 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 Olynthus: 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.

Per year
594 mm on 84 days
Wettest month
Dec · 82 mm
Driest month
Aug · 28 mm
OctoberRainy days 7Rainfall 61 mm

In October, Olynthus has about 7 rainy days with 61 mm of rain in total.

Sun protection

UV index in Olynthus

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
4 · 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 35 min
Fair skin
about 40 min
Light brown skin
about 60 min
Olive skin
about 75 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 Olynthus

How breezy and how cloudy Olynthus 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.

Year average
16 km/h · gentle breeze
Windiest month
Feb · 19 km/h
Calmest month
Jun · 14 km/h
OctoberWind 15 km/hBeaufort 3
20
WindBeaufort 4

In October, the wind in Olynthus 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.

Year average
43 % · mostly sunny
Clearest month
Jul · 17 %
Cloudiest month
Dec · 60 %
OctoberCloud cover 50 %Sunshine 6.4 h

In October, cloud covers on average 50 % of the sky over Olynthus: variable cloud, with about 6.4 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 Olynthus

How often the day gets hot in Olynthus (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.

Hot days a year
36 days
Hottest month
Aug · 30 °C
Hot months
Jul – Aug

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 0Daytime high 21 °C

In October, Olynthus has about 0 hot days, with an average daytime high of 21 °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 Olynthus

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Olynthus 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.

Olynthus has its best school-holiday weather during the summer holidays (score 100) and its weakest during the Christmas holidays (score 16).

  • Easter holidays

    Mar – Apr

    30

    Poor

    • 17 °C by day
    • Sea 15 °C
    • 7.7 h of sun a day
    • 8 rainy days a month
  • May half-term

    May – Jun

    72

    Good

    • 24 °C by day
    • Sea 20 °C
    • 9.9 h of sun a day
    • 7 rainy days a month

    Good for: Sightseeing & walks

  • Summer holidays

    Jul – Aug

    100

    ExcellentBest holidays

    • 30 °C by day
    • Sea 26 °C
    • 11.6 h of sun a day
    • 4 rainy days a month

    Good for: Beach & swimming

  • October half-term

    Oct

    55

    Fair

    • 21 °C by day
    • Sea 21 °C
    • 6.4 h of sun a day
    • 7 rainy days a month

    Good for: Sightseeing & walks

  • Christmas holidays

    Dec – Jan

    16

    Poor

    • 12 °C by day
    • Sea 15 °C
    • 3.8 h of sun a day
    • 9 rainy days a month

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 3 h 10 min
Distance
2,210 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

Compare

Olynthus compared

Put Olynthus side by side with another destination.

Nearby:
Compare with home:

Olynthus vs Nea Moudania

In October the holiday weather in Olynthus and Nea Moudania is about equally good (score 55 vs 56). During the day it is about as warm in Nea Moudania as in Olynthus. The sea is about equally warm.

Olynthus vs Nea Moudania, in October
in OctoberOlynthusNea Moudania
Holiday weather score5556
Daytime high21°21°
Sea21°21°
Sunshine6 h6 h
Rainy days77
Best timeJun – SepJun – Sep

Through the year

OctoberOlynthus 21°Nea Moudania 21°
OlynthusNea Moudania
Go to Nea Moudania
Ranking

Greece in October: the best places

In October, Olynthus ranks 22 among the 31 nearest destinations in this country.

  1. Larissa22°89
  2. 2Pella22°87
  3. 3Kalabaka22°86
  4. 4Thessaloniki22°21°85
  5. 5Serres22°85
  6. 6Veria22°85
  7. 7Kozani19°85
  8. 8Kastoria19°85
  9. 22OlynthusThis page21°21°55
All destinations: Greece

Near Olynthus

Other destinations close by.

Places with a climate like Olynthus

Destinations whose weather through the year is closest to Olynthus's – good alternatives.

  1. 85 % similar52TermoliItaly22°20°Best time: Jun – Sep
  2. 85 % similar54OstuniItaly22°21°Best time: Jun – Sep
  3. 84 % similar61Santa Maria di LeucaItaly22°22°Best time: Jun – Sep
  4. 84 % similar50PescaraItaly22°20°Best time: Jun – Sep

Frequently asked questions about Olynthus

When is the best time to visit Olynthus?

The best time to visit Olynthus 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 Olynthus?

The sea temperature in Olynthus ranges from 13.9 °C in February to 26.7 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to October.

Can you swim in Olynthus in October?

Yes. In October the sea averages 21.3 °C – refreshing for a swim.

What is the warmest month in Olynthus?

August is the warmest month, with average highs of 30 °C and nights around 22 °C. January is the coolest month at 11 °C.

When does it rain most in Olynthus?

The wettest month is December with 82 mm of precipitation. The driest month is August with 28 mm.

How many hours of sunshine does Olynthus get?

Olynthus gets around 2,800 hours of sunshine a year. The sunniest month is July with 11.9 hours a day; in December there are 3.6 hours a day.

What time zone is Olynthus in?

Olynthus is on UTC+2 in January and UTC+3 in July.

How long is the flight from London to Olynthus?

A nonstop flight from London to Olynthus takes about 3 h 10 min, for a straight-line distance of about 2,210 km.

Which school holidays are best for Olynthus?

Olynthus has its best school-holiday weather during the summer holidays (score 100) and its weakest during the Christmas holidays (score 16). Holiday ratings (0–100): Easter holidays 30, May half-term 72, summer holidays 100, October half-term 55, Christmas holidays 16.