Average monthly temperatures
Alonissos has a mediterranean climate with hot dry summers and mild winters.
If you’re a sunseeker the best time to visit Alonissos is between June and September.
The hottest month of the year is July with an average daily maximum of 30 C and an average low of 21 C.
The coolest month of the year is January with an average daily maximum of 11 C and an average low of 2 C.
Sunshine and rainfall
The driest month is August with 3 mm of rainfall and 30 perfect sunny days. The wettest month is March with 26 mm of rain over 3 days.
Best time to be on the beach
You should be able to enjoy the beach with sea temperatures averaging 23 C or above from June to October.