Istro
Greece
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Istro, Greece

Average temperature in May - Istro, Greece
  • Average high temperature in May: 23°C

Warmest months (with the highest average high temperature) are July and August (28°C).
The month with the lowest average high temperature is January (14°C).

  • Average low temperature in May: 14°C

Months with the highest average low temperature are July and August (21°C).
Coldest months (with the lowest average low temperature) are January and February (8°C).

Average rainfall in May - Istro, Greece
  • Average rainfall in May: 17mm

The wettest month (with the highest rainfall) is January (138mm).
The driest month (with the lowest rainfall) is July (1mm).

Average rainfall days in May - Istro, Greece
  • Average rainfall days in May: 3 days

Months with the highest number of rainy days are January and December (12 days).
Months with the lowest number of rainy days are June, July, August and September (1 days).

Average sea temperature in May - Istro, Greece
  • Average sea temperature in May: 19°C

The best month for swimming (with the highest average sea temperature) is August (25°C).
Coldest months (with the lowest average sea temperature) are February and March (15°C).

Average daylight in May / Average sunshine in May - Istro, Greece
  • Average daylight in May: 14h

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.8h).

  • Average sunshine in May: 10h

Months with most sunshine are June, July and August (Average sunshine: 12h).
Months with least sunshine are January and December (Average sunshine: 4).

Average UV index in May - Istro, Greece
  • Average UV index in May: 9

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).

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