May weather forecastPetras, Greece

May

Weather in May

The last month of the spring, May, is a pleasant month in Petras, Greece, with an average temperature varying between 17.8°C (64°F) and 21.7°C (71.1°F).

Temperature

May showcases a minor temperature ascent, adjusting from April's comfortable 18.2°C (64.8°F) to a pleasant 21.7°C (71.1°F). A steady low-temperature average of 17.8°C (64°F) is logged during May, reflecting a modest dip from daytime readings.

Humidity

In May, the average relative humidity is 68%.

Rainfall

In Petras, during May, the rain falls for 4.5 days and regularly aggregates up to 3mm (0.12") of precipitation. In Petras, during the entire year, the rain falls for 64.8 days and collects up to 119mm (4.69") of precipitation.

Daylight

In Petras, the average length of the day in May is 14h and 1min.
On the first day of the month, sunrise is at 06:23 and sunset at 20:01. On the last day of May, sunrise is at 06:02 and sunset at 20:24 EEST.

Sunshine

In Petras, the average sunshine in May is 11.6h.

UV index

In May, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: A daily maximum UV index of 6 in May translates into the following instructions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.

Updated: Jul 12, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature during May is 21.7°C (71.1°F) and the low-temperature is 17.8°C (64°F).

In Petras, the average relative humidity in May is 68%.

In Petras, in May, during 4.5 rainfall days, 3mm (0.12") of precipitation is typically accumulated.

In Petras, the average day length in May is 14h and 1min.

In May, on the first day of the month, sunrise is at 06:23 and sunset at 20:01. On the last day of the month, sunrise is at 06:02 and sunset at 20:24 EEST.

In Petras, the average sunshine duration in May is 11.6h.

The average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

18.2°C

21.7°C

25.2°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

16km/h

13.6km/h

14.4km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

22.2

24.5

27.5

Average UV index

Average cloud cover

19%

13%

Average visibility

10km

Average temperature in May
Petras, Greece

Average high temperature in May: 21.7°C

The warmest month (with the highest average high temperature) is August (28.1°C).
The month with the lowest average high temperature is January (14.2°C).

Average low temperature in May: 17.8°C

The month with the highest average low temperature is August (23.7°C).
The coldest month (with the lowest average low temperature) is January (11.5°C).

Average pressure in May
Petras, Greece

Average pressure in May: 1013mbar

The month with the highest atmospheric pressure is December (1017.9mbar).
The month with the lowest atmospheric pressure is July (1009mbar).

Average wind speed in May
Petras, Greece

Average wind speed in May: 12.6km/h

The windiest month (with the highest average wind speed) is January (20.6km/h).
The calmest month (with the lowest average wind speed) is May (12.6km/h).

Average humidity in May
Petras, Greece

Average humidity in May: 68%

The months with the highest relative humidity are January, February and December (72%).
The month with the lowest relative humidity is July (65%).

Average rainfall in May
Petras, Greece

Average rainfall in May: 3mm

The wettest month (with the highest rainfall) is January (25mm).
The driest month (with the least rainfall) is August (0mm).

Average rainfall days in May
Petras, Greece

Average rainfall days in May: 4.5 days

The month with the highest number of rainy days is December (10.4 days).
The month with the least rainy days is August (0.4 days).

Average daylight in May /
Average sunshine in May
Petras, Greece

Average daylight in May: 14h and 0min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

Average sunshine in May: 11h and 36min

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).

Average sunshine days in May
Petras, Greece

Average sunshine days in May: 24.5 days

The months with the most sunshine days are July and August (30.3 days).
The month with the least sunshine days is January (15.9 days).

Average UV index in May
Petras, Greece

Average UV index in May: 6

The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 4).

Average cloud cover in May
Petras, Greece

Average cloud cover in May: 13

The month with the most cloud cover is January (Cloud cover 31).
The months with the least cloud cover are July and August (Cloud cover 2).

Average visibility in May
Petras, Greece

Average visibility in May: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).