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

May weather forecast and climate
Istro, Greece

Mayo, the last month of the spring, in Istro, is a moderately hot month, with average temperature ranging between max 23°C (73.4°F) and min 14°C (57.2°F).

Temperature

In Mayo, the average high-temperature marginally rises, from a comfortable 19°C (66.2°F) in Abril, to a warm 23°C (73.4°F). In Istro, the average low-temperature is 14°C (57.2°F).

Rainfall

In Istro, in Mayo, during 3 rainfall days, 17mm (0.67") of precipitation is typically accumulated. In Istro, during the entire year, the rain falls for 68 days and collects up to 661mm (26.02") of precipitation.

Sea temperature

In Istro, the average seawater temperature in Mayo is 19°C (66.2°F).
Note: For most, swimming in 19°C (66.2°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

In Mayo, the average length of the day in Istro is 14h.

Sunshine

The average sunshine in Mayo is 10h.

UV index

In Mayo, the average daily maximum UV index in Istro is 9. A UV Index value of 8 to 10 symbolizes a very high health hazard from the exposure to the Sun's UV radiation for the average person.
Note: In Mayo, the average maximum UV index of 9 translate into the following recommendations:
Take extra precautions. Protection against sun damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in Mayo in Istro?

In Mayo, in Istro, the average high-temperature is 23°C (73.4°F), and the average low-temperature is 14°C (57.2°F).

How many days does it rain in Mayo in Istro?

In Istro, Greece, during Mayo, the rain falls for 3 days and regularly aggregates up to 17mm (0.67") of precipitation.

What is the sea temperature in Mayo in Istro?

In Istro, in Mayo, the average water temperature is 19°C (66.2°F). For most, swimming in 19°C (66.2°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

How many hours of daylight does Istro have in Mayo?

In Istro, the average length of the day in Mayo is 14h.

How long on average sun shines in Mayo in Istro?

In Mayo, the average sunshine in Istro is 10h.

What is the UV index intensity in Mayo in Istro?

In Istro, Greece, the average daily maximum UV index in Mayo is 9. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from unprotected exposure to the UV radiation.
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).