October weather forecastErmioni, Greece
October
Weather in October
October, the same as September, in Ermioni, Greece, is another pleasant autumn month, with an average temperature ranging between min 17.6°C (63.7°F) and max 21.6°C (70.9°F).Temperature
October's arrival subtly correlates with a reduction in the average high-temperature, down from a moderately hot 26.3°C (79.3°F) in September to a pleasant 21.6°C (70.9°F). In October, Ermioni temperatures settle at a low of 17.6°C (63.7°F) during the nights, reflecting a minor change from daytime highs.Humidity
The average relative humidity in October is 67%.Rainfall
In October, the rain falls for 8.5 days. Throughout October, 23mm (0.91") of precipitation is accumulated. Throughout the year, there are 95.8 rainfall days, and 262mm (10.31") of precipitation is accumulated.Snowfall
In Ermioni, snow does not fall in March through November.Sea temperature
In October, the average sea temperature is 22.8°C (73°F).Note: For someone not comfortable with cold, swimming in 22.8°C (73°F) waters might be a stretch. However, with favorable conditions like abundant sunshine, mild wind, and warm air temperatures, the experience can be improved. And while wetsuits are not a must, they can be considered.
Daylight
In October, the average length of the day is 11h and 14min.On the first day of the month, sunrise is at 07:22 and sunset at 19:10 EEST. On the last day of October, sunrise is at 06:51 and sunset at 17:30 EET.
Note: On Sunday, 27. October 2024, at 04:00, Daylight Saving Time ends, and the time zone changes from EEST to EET. Daylight Saving Time starts again on Sunday, 30. March 2025, at 03:00; consequently, the time zone reverts from EET to EEST.
Sunshine
In October, the average sunshine is 7.4h.UV index
The average daily maximum UV index in October is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 4 in October translates into this advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Beware! Reflections from sand and water can intensify the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Ermioni, Greece
- Average high temperature in October: 21.6°C
The warmest month (with the highest average high temperature) is August (29.7°C).
The month with the lowest average high temperature is January (12.6°C).
- Average low temperature in October: 17.6°C
The month with the highest average low temperature is August (24.2°C).
The coldest month (with the lowest average low temperature) is January (8.6°C).
Average pressure in October
Ermioni, Greece
- Average pressure in October: 1016.8mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is July (1011.3mbar).
Average wind speed in October
Ermioni, Greece
- Average wind speed in October: 12.5km/h
The windiest month (with the highest average wind speed) is January (14.6km/h).
The calmest month (with the lowest average wind speed) is May (11.1km/h).
Average humidity in October
Ermioni, Greece
- Average humidity in October: 67%
The months with the highest relative humidity are January and February (72%).
The month with the lowest relative humidity is August (56%).
Average rainfall in October
Ermioni, Greece
- Average rainfall in October: 23mm
The wettest month (with the highest rainfall) is December (36mm).
The driest months (with the least rainfall) are July and August (6mm).
Average rainfall days in October
Ermioni, Greece
- Average rainfall days in October: 8.5 days
The month with the highest number of rainy days is January (10.8 days).
The month with the least rainy days is August (3.3 days).
Average snowfall in October
Ermioni, Greece
- Average snowfall in October: 0mm
The month with the highest snowfall is January (5mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in October
Ermioni, Greece
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in October
Ermioni, Greece
- Average sea temperature in October: 22.8°C
The best month for swimming (with the highest average sea temperature) is August (26.5°C).
The coldest month (with the lowest average sea temperature) is February (15.3°C).
Average daylight in October /
Average sunshine in October
Ermioni, Greece
- Average daylight in October: 11h and 12min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in October: 7h and 24min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in October
Ermioni, Greece
- Average sunshine days in October: 19.6 days
The month with the most sunshine days is July (27 days).
The month with the least sunshine days is January (16.5 days).
Average UV index in October
Ermioni, Greece
- Average UV index in October: 4
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in October
Ermioni, Greece
- Average cloud cover in October: 23
The months with the most cloud cover are January and February (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in October
Ermioni, Greece
- Average visibility in October: 10km
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).





