Agios Ioannis Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Agios Ioannis.
Climate overview of Agios Ioannis
Agios Ioannis, Cyclades, Greece, sees big temperature differences between seasons, with August peaking at 27°C (81°F) and January dropping to 15°C (59°F).
Rainfall is modest, totalling around 410 mm (16 in) annually. The city experiences a distinct dry season from April to October, with warm summers and mild winters. January tends to be the wettest month.
Agios Ioannis Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Agios Ioannis - and find the best time to visit.
Monthly Temperature in Agios Ioannis
Visitors to Agios Ioannis can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 27°C (81°F) in August, the warmest time of the year, to a moderate 15°C (59°F) during cooler months like January.
At night, you can expect temperatures ranging from 24°C (75°F) in August to around 11°C (52°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Agios Ioannis
Agios Ioannis's climate is marked by below-average rainfall, accumulating 410 mm (16 in) of precipitation yearly. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, January it receives moderate rainfall, averaging 83 mm (3.3 in) of precipitation, recorded across 10 rainy days. In contrast, the driest month July brings less rainfall, with 0.4 mm (0.02 in) over 2 rainy days. For more details, please visit our Agios Ioannis Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Humidity in Agios Ioannis by Month
The relative humidity is high throughout the year in Agios Ioannis.
The city experiences its highest humidity in November, reaching 74%. In June, the humidity drops to its lowest level at 68%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Agios Ioannis
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August, September and October
- Warmest weather: July and August
- Fewer rainy days: May, June, July, August and September
- Seasonal pattern: A distinct dry season from April to October, with warm summers and mild winters
Frequently asked questions about the climate in Agios Ioannis
What is the best time to visit Agios Ioannis?
May, June, July, August, September and October typically offer the most optimal weather in Agios Ioannis. In contrast, January, February, March and December tend to have less optimal conditions. Agios Ioannis has a distinct dry season from April to October, with warm summers and mild winters.
What temperatures can I expect in Agios Ioannis?
Daytime highs range from 15°C (59°F) in January to 27°C (81°F) in August. Nighttime lows range from 11°C (52°F) to 24°C (75°F). Temperatures vary considerably through the year.
How much rain does Agios Ioannis get?
Annual rainfall is around 410 mm (16 in). January is the wettest month with 83 mm (3.3 in), while July is the driest with 0.4 mm (0.02 in).
Agios Ioannis 3-Day Forecast
Agios Ioannis on the map
Agios Ioannis is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Top 5 secluded beaches in Greece
Explore Greece's hidden gems: secluded beaches like Fokos, Seychelles, Potami, Kedrodasos, and Mouros for tranquil adventures away from crowds.
Discover Zakynthos
On the Greek island you can discover the rugged coastline, authentic old villages, a beautiful interior and the caves with the beautiful azure water.
Why Santorini should be on every Bucket List
This Greek island is home to some of the most stunning scenery globally, with its beautiful Caldera views, white-washed houses and crystal-clear waters.