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Alissos Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Alissos.
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Climate overview of Alissos
The climate in Alissos, Peloponnese, Greece, is marked by large temperature swings across the seasons, ranging from 32°C (90°F) in August to 13°C (55°F) in January.
Annual rainfall is moderate at around 946 mm (37 in), with November being the wettest month. The city also has a distinct dry season from June to August, with very warm summers and mild winters. The sunniest month is July, with 11.9 hours of sunshine per day on average.
Alissos Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Alissos - and find the best time to visit.
Monthly Temperature in Alissos
In Alissos, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a very warm 32°C (90°F) in August. In January, the coolest month of the year, temperatures drop to a moderate 13°C (55°F).
At night, temperatures range from around 21°C (70°F) in August to 5°C (41°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Alissos
On average, Alissos receives a reasonable amount of rainfall, with an annual precipitation of 946 mm (37 in). Alissos can be quite wet during November, receiving approximately 139 mm (5.5 in) of precipitation over 12 rainy days.
In contrast, during the driest month (July), you will experience much drier conditions, with 12 mm (0.5 in) of precipitation spread across 2 rainy days. For more details, please visit our Alissos Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Alissos
Alissos can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 11.9 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 3.6 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Patras, Greece (17 KM, 10 Miles).
Daily hours of sunshine
Data from: Patras, Greece (17 KM, 10 Miles).
Water Temperature in Alissos
The mean water temperature over the year ranges from 15°C (59°F) in February to 26°C (79°F) in August.
Water temperature over the year
Data from: Patras, Greece (17 KM, 10 Miles).
Humidity in Alissos by Month
The relative humidity is high throughout the year in Alissos.
The city experiences its highest humidity in November, reaching 71%. In July, the humidity drops to its lowest level at 60%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Patras, Greece (17 KM, 10 Miles).
Wind Speed in Alissos
The mean wind speed varies between 1 m/s (2 knots) and 1 m/s (2 knots) throughout the year. It is lowest in January, February, March, April, May, June, July, August, September, October, November and December and highest during January, February, March, April, May, June, July, August, September, October, November and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Data from: Patras, Greece (17 KM, 10 Miles).
Best Time to Visit Alissos
Conditions in Alissos are generally most comfortable in May, June, September and October. They are typically least comfortable in January.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
wet
Feb
mixed
Mar
mixed
Apr
very good
May
excellent
Jun
excellent
Jul
very good
Aug
very good
Sep
excellent
Oct
excellent
Nov
good
Dec
mixed
- Best overall: May, June, September and October
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: June, July, August and September
- Best for swimming: June, July, August, September, October and November.
- Seasonal pattern: A distinct dry season from June to August, with very warm summers and mild winters
Frequently asked questions about the climate in Alissos
What is the best time to visit Alissos?
May, June, September and October typically offer the most optimal weather in Alissos. In contrast, January tends to have less optimal conditions. Alissos has a distinct dry season from June to August, with very warm summers and mild winters.
What temperatures can I expect in Alissos?
Daytime highs range from 13°C (55°F) in January to 32°C (90°F) in August. Nighttime lows range from 5°C (41°F) to 21°C (70°F). Temperatures vary considerably through the year.
How much rain does Alissos get?
Annual rainfall is around 946 mm (37 in). November is the wettest month with 139 mm (5.5 in), while July is the driest with 12 mm (0.5 in).
How sunny is Alissos?
Alissos receives around 2,725 hours of sunshine per year. July is the sunniest month with 358 hours, while December is the cloudiest with just 108 hours. Overall, Alissos enjoys abundant sunshine.
Alissos 3-Day Forecast
Alissos on the map
Alissos is highlighted - select any city to see its climate.
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