Thessaloniki
Greece
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Thessaloniki, Greece

A street in front of the ancient white tower in Thessaloniki, Greece, in a park of trees
A street in front of the ancient white tower in Thessaloniki, Greece, in a park of trees
The last month of the spring, May, is a moderately hot month in Thessaloniki, Greece, with average temperature fluctuating between 24.5°C (76.1°F) and 12.1°C (53.8°F).

Temperature

In May, the average high-temperature rises, from an enjoyable 19°C (66.2°F) in April, to a warm 24.5°C (76.1°F). The average low-temperature, is 12.1°C (53.8°F).

Rainfall

In May, the rain falls for 10.7 days. Throughout May, 44.4mm (1.7") of precipitation is accumulated. Throughout the year, in Thessaloniki, there are 114.1 rainfall days, and 448.7mm (17.7") of precipitation is accumulated.

Sea temperature

In Thessaloniki, the average seawater temperature is 18.8°C (65.8°F). For most, swimming in 18.8°C (65.8°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

The average length of the day in May is 14.5h.

Sunshine

In Thessaloniki, the average sunshine is 8.2h.

UV index

The average daily maximum UV index in May is 8. A UV Index estimate of 8 to 10 represents a very high health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
In May, the average maximum UV index of 8 translate into the following recommendations:
Take special precautions, as unprotected skin can be damaged and can burn quickly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in May in Thessaloniki?

In May, in Thessaloniki, the average high-temperature is 24.5°C (76.1°F), and the average low-temperature is 12.1°C (53.8°F).

How much does it rain in Thessaloniki in May?

In Thessaloniki, Greece, in May, during 10.7 rainfall days, 44.4mm (1.7") of precipitation is typically accumulated.

How cold is the water in May in Thessaloniki?

In Thessaloniki, Greece, in May, the average water temperature is 18.8°C (65.8°F). For most, swimming in 18.8°C (65.8°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).

What is the average length of the day in May in Thessaloniki?

The average length of the day in May in Thessaloniki is 14.5h.

How many hours of sunshine does Thessaloniki have in May?

The average sunshine in May is 8.2h.

How high is the UV index in May in Thessaloniki?

In May, the average daily maximum UV index in Thessaloniki is 8. A UV Index value of 8 to 10 symbolizes a very high health threat from unprotected exposure to the UV radiation.
Average temperature in May - Thessaloniki, Greece
  • Average high temperature in May: 24.5°C

The warmest month (with the highest average high temperature) is July (31.5°C).
The month with the lowest average high temperature is January (9.3°C).

  • Average low temperature in May: 12.1°C

The month with the highest average low temperature is July (18.6°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).

Average rainfall in May - Thessaloniki, Greece
  • Average rainfall in May: 44.4mm

The wettest month (with the highest rainfall) is December (54.9mm).
The driest month (with the lowest rainfall) is August (20.4mm).

Average rainfall days in May - Thessaloniki, Greece
  • Average rainfall days in May: 10.7 days

The month with the highest number of rainy days is December (12.5 days).
The month with the lowest number of rainy days is August (4.7 days).

Average sea temperature in May - Thessaloniki, Greece
  • Average sea temperature in May: 18.8°C

The best month for swimming (with the highest average sea temperature) is July (26.2°C).
The coldest month (with the lowest average sea temperature) is March (13.3°C).

Average daylight in May / Average sunshine in May - Thessaloniki, Greece
  • Average daylight in May: 14.5h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.3h).

  • Average sunshine in May: 8.2h

The month with most sunshine is July (Average sunshine: 10.5h).
The month with least sunshine is January (Average sunshine: 3.2h).

Average UV index in May - Thessaloniki, Greece
  • Average UV index in May: 8

Months with the highest UV index are June and July (UV index 9).
The month with the lowest UV index is December (UV index 1).