May weather forecastIstro, Greece
May
Weather in May
May, the last month of the spring in Istro, is a pleasant month, with an average temperature varying between 21.7°C (71.1°F) and 17.8°C (64°F).Temperature
A gentle upsurge in temperatures occurs as April gives way to May, with average highs shifting from an enjoyable 18.2°C (64.8°F) to an agreeable 21.7°C (71.1°F). Istro consistently logs a low temperature averaging a comfortable 17.8°C (64°F) during May, a modest drop from daytime temperatures.Humidity
In Istro, the average relative humidity in May is 68%.Rainfall
In Istro, during May, the rain falls for 4.5 days and regularly aggregates up to 3mm (0.12") of precipitation. In Istro, Greece, during the entire year, the rain falls for 64.8 days and collects up to 119mm (4.69") of precipitation.Sea temperature
In May, the average sea temperature 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 May, the average length of the day is 14h and 1min.On the first day of May, sunrise is at 06:25 and sunset at 20:02. On the last day of the month, sunrise is at 06:04 and sunset at 20:25 EEST.
Sunshine
In Istro, the average sunshine in May is 11.6h.UV index
The average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily maximum UV index of 6 in May interprets into the following advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Istro, 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
Istro, 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
Istro, 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
Istro, 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
Istro, 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
Istro, 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 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).
The 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 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
Istro, 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
Istro, 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
Istro, 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
Istro, 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).
