AI-generatedRethymno at a glance
- Best time
- Jun – Sep
- Warmest month
- Jul · 30°
- Warmest sea
- Aug · 25.9°
- Sunshine a year
- 2,940 h
- Rain a year
- 545 mm
- Climate
- Mediterranean
- Time zone
- UTC+2 / UTC+3
- Elevation
- 14 m
Climate in Rethymno
Rethymno has a Mediterranean climate with warm to hot, dry summers and mild, wetter winters. July is the warmest month with average highs of 30 °C, while January is the coolest at 15 °C. With around 2,940 hours of sunshine a year, Rethymno is sunny; July is the sunniest month with 12.1 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Good
Best time to visit: June – September
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°
07:2718:48
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 07:11–08:01 · evening 18:14–19:04
- Blue hour
- Morning 07:01–07:11 · evening 19:04–19:14
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.
What is the weather like in Rethymno in October?
In October, Rethymno is warm: daytime highs average 24 °C, and nights cool down to about 18 °C. The sea averages 23.2 °C – pleasant for swimming. The sun shines for around 7 hours a day. Rain falls on about 7 days, adding up to 46 mm. All in all, October is a good month for a holiday in Rethymno.
More details for October
- Daylight
- 11 h 21 min07:27 – 18:48
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 1 daydew point 18 °C or moreAll months
- Wind
- 11 km/haverage daily peakAll months
- Cloud cover
- 37 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Time zone
- UTC+3Europe/Athens
How the score comes together
- Temperatureweight 35 %78 %
- Seaweight 25 %89 %
- Sunshineweight 20 %62 %
- Few rainy daysweight 20 %82 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Swimwear
- Sunscreen
Sea temperature in Rethymno
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 22.2 – 24.0 °C
Swimming season: Jun – Nov
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Rethymno ranges from 16.0 °C in February to 25.9 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to November.
The sea warms up slowly: it is warmest in August, while the air already peaks in July. 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 25.1 and 26.6 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 16.7° | 16.0° | 17.6° | cold |
| FebruaryFeb | 16.0° | 15.3° | 16.6° | cold |
| MarchMar | 16.1° | 15.5° | 16.7° | cold |
| AprilApr | 17.0° | 16.5° | 17.5° | fresh |
| MayMay | 19.3° | 18.6° | 20.1° | fresh |
| JuneJun | 22.6° | 21.9° | 23.5° | refreshing |
| JulyJul | 25.1° | 24.3° | 26.0° | pleasant |
| AugustAug | 25.9° | 25.1° | 26.6° | pleasant |
| SeptemberSep | 25.1° | 23.9° | 25.8° | pleasant |
| OctoberOct | 23.2° | 22.2° | 24.0° | pleasant |
| NovemberNov | 20.9° | 19.7° | 21.9° | refreshing |
| DecemberDec | 18.5° | 17.3° | 19.2° | fresh |
Sunshine hours in Rethymno
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 6.7 of 11.4 hours of daylight in Rethymno, 59 % of the day.
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.
UV index in Rethymno
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 11).
Minutes until sunburn in October
- Very fair skin
- about 25 min
- Fair skin
- about 35 min
- Light brown skin
- about 45 min
- Olive skin
- about 60 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, 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.
Rain in Rethymno: 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, Rethymno has about 7 rainy days with 46 mm of rain in total.
Wind and clouds in Rethymno
How breezy and how cloudy Rethymno 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 Rethymno typically peaks at 11 km/h during the day: Beaufort 2, light air.
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 37 % of the sky over Rethymno: mostly sunny, with about 6.7 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 Rethymno
How often the day gets hot in Rethymno (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, Rethymno has about 1 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
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Rethymno
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°
- Hot 24° and more
- muggy month (10+ muggy days)
PleasantOctober: nights around 18°. Ideal for sleeping, often with the window open. Muggy on about 1 days (dew point 18 °C or more).
The coolest nights are in February (10°), the warmest in August (24°). 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 30 days a year, mostly in 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 | 12 | 15° | 10° | 16.7° | 5.1 h | 14 | 96 |
| FebruaryFeb | 18 | 15° | 10° | 16.0° | 5.9 h | 12 | 87 |
| MarchMar | 25 | 17° | 11° | 16.1° | 6.9 h | 10 | 63 |
| AprilApr | 42 | 20° | 13° | 17.0° | 8.5 h | 6 | 33 |
| MayMay | 79 | 24° | 17° | 19.3° | 9.8 h | 4 | 25 |
| JuneJun | 95 | 28° | 21° | 22.6° | 12.0 h | 1 | 7 |
| JulyJul | 100 | 30° | 23° | 25.1° | 12.1 h | 1 | 2 |
| AugustAug | 100 | 30° | 24° | 25.9° | 10.9 h | 1 | 5 |
| SeptemberSep | 100 | 28° | 21° | 25.1° | 8.9 h | 4 | 20 |
| OctoberOct | 78 | 24° | 18° | 23.2° | 6.7 h | 7 | 46 |
| NovemberNov | 41 | 20° | 15° | 20.9° | 5.3 h | 9 | 62 |
| DecemberDec | 16 | 16° | 12° | 18.5° | 4.4 h | 14 | 99 |
Climate averages 1996–2025, 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
35.37° N, 24.48° E · 14 m · Europe/Athens
Best time to visit Rethymno
The best time to visit Rethymno is from June to September. For a beach holiday with the sea above 21 °C, go from June to October. For sightseeing, day trips and hiking, conditions are most comfortable from March to June and from September to November. Rain is most frequent from December to February; the wettest month is December with 99 mm.
Rethymno through the seasons
How the weather changes over the seasons, with averages for each.
Rethymno in spring
Mar – May
Fair
- 17–24 °C by day
- Sea 18 °C
- 8 h of sun a day
- 20 rainy days in all
Rethymno in summer
Jun – Aug
Excellent
- 28–30 °C by day
- Sea 25 °C
- 12 h of sun a day
- 3 rainy days in all
Rethymno in autumn
Sep – Nov
Good
- 20–28 °C by day
- Sea 23 °C
- 7 h of sun a day
- 19 rainy days in all
Rethymno in winter
Dec – Feb
Poor
- 15–16 °C by day
- Sea 17 °C
- 5 h of sun a day
- 40 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Rethymno for you.
Your best months: July – September
Based on the climate averages; tap a month to see its details.
Compare two months in Rethymno
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 Rethymno: score 100 against 78. In July, days are 6 °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 |
|---|---|---|
| Weather score | 78 | 100better |
| Day high | 24° | 30° |
| Night low | 18° | 23° |
| Sea | 23.2° | 25.1° |
| Sunshine | 6.7 h | 12.1 hbetter |
| Rainy days | 7 | 1better |
| Rainfall | 46 mm | 2 mmbetter |
| Muggy days | 1better | 7 |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
Jun – Oct
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Mar – Jun, Sep – Nov
15–28 °C and not too much rain
Rainy months
Dec – Feb
12 or more rainy days
Rethymno month by month
The typical weather for every month at a glance.
12January15° · Sea 17° · 5 h
In January, Rethymno is cool: daytime highs average 15 °C, and nights cool down to about 10 °C. The sea averages 16.7 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. It rains often – on about 14 days, adding up to 96 mm. All in all, January is not an ideal month for a holiday in Rethymno.
Rethymno in January18February15° · Sea 16° · 6 h
In February, Rethymno is cool: daytime highs average 15 °C, and nights cool down to about 10 °C. The sea averages 16.0 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 87 mm in total. All in all, February is not an ideal month for a holiday in Rethymno.
Rethymno in February25March17° · Sea 16° · 7 h
In March, Rethymno is mild: daytime highs average 17 °C, and nights cool down to about 11 °C. The sea averages 16.1 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 10 rainy days and 63 mm in total. All in all, March is not an ideal month for a holiday in Rethymno.
Rethymno in March42April20° · Sea 17° · 9 h
In April, Rethymno is mild: daytime highs average 20 °C, and nights cool down to about 13 °C. The sea averages 17.0 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 9 hours a day. Rain falls on about 6 days, adding up to 33 mm. All in all, April is a so-so month for a holiday in Rethymno.
Rethymno in April79May24° · Sea 19° · 10 h
In May, Rethymno is warm: daytime highs average 24 °C, and nights cool down to about 17 °C. The sea averages 19.3 °C – bracing, so a wetsuit helps for longer swims. With around 10 hours of sunshine a day, there is plenty of sun. Rain is rare: about 4 days bring 25 mm in total. All in all, May is a good month for a holiday in Rethymno.
Rethymno in May95June28° · Sea 23° · 12 h
In June, Rethymno is hot: daytime highs average 28 °C, and even at night it stays warm at around 21 °C. The sea averages 22.6 °C – refreshing for a swim. With around 12 hours of sunshine a day, there is plenty of sun. It hardly ever rains. On about 6 days the thermometer climbs to 30 °C or more. All in all, June is an excellent month for a holiday in Rethymno.
Rethymno in June100July30° · Sea 25° · 12 h
In July, Rethymno is hot: daytime highs average 30 °C, and even at night it stays warm at around 23 °C. The sea averages 25.1 °C – pleasant for swimming. With around 12 hours of sunshine a day, there is plenty of sun. It hardly ever rains. On about 15 days the thermometer climbs to 30 °C or more. All in all, July is an excellent month for a holiday in Rethymno.
Rethymno in July100August30° · Sea 26° · 11 h
In August, Rethymno is hot: daytime highs average 30 °C, and even at night it stays warm at around 24 °C. The sea averages 25.9 °C – pleasant for swimming. With around 11 hours of sunshine a day, there is plenty of sun. It hardly ever rains. On about 15 days the thermometer climbs to 30 °C or more. All in all, August is an excellent month for a holiday in Rethymno.
Rethymno in August100September28° · Sea 25° · 9 h
In September, Rethymno is hot: daytime highs average 28 °C, and even at night it stays warm at around 21 °C. The sea averages 25.1 °C – pleasant for swimming. The sun shines for around 9 hours a day. Rain is rare: about 4 days bring 20 mm in total. On about 5 days the thermometer climbs to 30 °C or more. All in all, September is an excellent month for a holiday in Rethymno.
Rethymno in September78October24° · Sea 23° · 7 h
In October, Rethymno is warm: daytime highs average 24 °C, and nights cool down to about 18 °C. The sea averages 23.2 °C – pleasant for swimming. The sun shines for around 7 hours a day. Rain falls on about 7 days, adding up to 46 mm. All in all, October is a good month for a holiday in Rethymno.
Rethymno in October41November20° · Sea 21° · 5 h
In November, Rethymno is mild: daytime highs average 20 °C, and nights cool down to about 15 °C. The sea averages 20.9 °C – refreshing for a swim. Expect around 5 hours of sunshine a day. Rain falls on about 9 days, adding up to 62 mm. All in all, November is a so-so month for a holiday in Rethymno.
Rethymno in November16December16° · Sea 19° · 4 h
In December, Rethymno is mild: daytime highs average 16 °C, and nights cool down to about 12 °C. The sea averages 18.5 °C – bracing, so a wetsuit helps for longer swims. Expect around 4 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 99 mm in total. All in all, December is not an ideal month for a holiday in Rethymno.
Rethymno in DecemberRethymno compared
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Rethymno vs. Chania
In October Rethymno has the better holiday weather (score 78 vs. 65). During the day Chania is 2 °C cooler than Rethymno. The sea is about equally warm. Chania gets one hour less sunshine a day.
| in October | Rethymno | Chania |
|---|---|---|
| Holiday score | 78 | 65 |
| Daytime high | 24° | 22° |
| Sea | 23° | 23° |
| Sunshine | 7 h | 6 h |
| Rainy days | 7 | 8 |
| Best time | Jun – Sep | Jun – Sep |
Through the year
Greece in October: the best places
In October, Rethymno ranks 9 among the 31 nearest destinations in this country.
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- 6Mystras21°83
- 7Heraklion24°23°82
- 8Ierapetra23°24°81
- 9RethymnoThis page24°23°78
Planning a trip to Rethymno
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Rethymno 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.
Rethymno has its best school-holiday weather during the summer holidays (score 100) and its weakest during the Christmas holidays (score 14).
- 37
Easter holidays
Mar – Apr
Poor
- 19 °C by day
- Sea 17 °C
- 8.0 h of sun a day
- 7 rainy days a month
Good for: Sightseeing & walks
- 82
May half-term
May – Jun
Excellent
- 25 °C by day
- Sea 20 °C
- 10.2 h of sun a day
- 3 rainy days a month
Good for: Sightseeing & walks
- 100
Summer holidays
Jul – Aug
ExcellentBest holidays
- 30 °C by day
- Sea 26 °C
- 11.3 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 23 °C
- 6.7 h of sun a day
- 7 rainy days a month
Good for: Beach & swimming, Sightseeing & walks
- 14
Christmas holidays
Dec – Jan
Poor
- 16 °C by day
- Sea 18 °C
- 4.8 h of sun a day
- 14 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 45 min
- Distance
- 2,670 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.
Frequently asked questions about Rethymno
When is the best time to visit Rethymno?
The best time to visit Rethymno 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 Rethymno?
The sea temperature in Rethymno ranges from 16.0 °C in February to 25.9 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to November.
Can you swim in Rethymno in October?
Yes. In October the sea averages 23.2 °C – pleasant for swimming.
What is the warmest month in Rethymno?
July is the warmest month, with average highs of 30 °C and nights around 23 °C. January is the coolest month at 15 °C.
When does it rain most in Rethymno?
Rain is most frequent from December to February; the wettest month is December with 99 mm. The driest month is July with 2 mm.
How many hours of sunshine does Rethymno get?
Rethymno gets around 2,940 hours of sunshine a year. The sunniest month is July with 12.1 hours a day; in December there are 4.4 hours a day.
What time zone is Rethymno in?
Rethymno uses the time zone Europe/Athens: UTC+2 in January and UTC+3 in July.
How long is the flight from London to Rethymno?
A nonstop flight from London to Rethymno takes about 3 h 45 min, for a straight-line distance of about 2,670 km.
Which school holidays are best for Rethymno?
Rethymno has its best school-holiday weather during the summer holidays (score 100) and its weakest during the Christmas holidays (score 14). Holiday ratings (0–100): Easter holidays 37, May half-term 82, Summer holidays 100, October half-term 78, Christmas holidays 14.
Near Rethymno
Other destinations close by.
Places with a climate like Rethymno
Destinations whose weather through the year is closest to Rethymno's – good alternatives.