Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
Istro registers an average high-temperature of an enjoyable 18.2°C (64.8°F) at the commencement of April, closely related to the preceding month. An average temperature of 14.4°C (57.9°F) is logged during the nights of April, a small step down from daytime highs.Humidity
In April, the average relative humidity is 70%.Rainfall
In Istro, in April, during 6.7 rainfall days, 7mm (0.28") of precipitation is typically accumulated. In Istro, during the entire year, the rain falls for 64.8 days and collects up to 119mm (4.69") of precipitation.Sea temperature
In Istro, the average seawater temperature in April is 16°C (60.8°F).Note: Most people do not take pleasure in swimming in water at 16°C (60.8°F). The difficulty of managing breathing increases as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
In April, the average length of the day is 13h and 5min.On the first day of April in Istro, sunrise is at 07:03 and sunset at 19:38. On the last day of the month, sunrise is at 06:26 and sunset at 20:02 EEST.
Sunshine
The average sunshine in April is 11h.UV index
In Istro, the average daily maximum UV index in April is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 5 during April translates into these guidelines:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
What are the temperatures in Istro in April?
What is the average humidity in April in Istro?
How many days does it rain in April in Istro?
How cold is the water in April in Istro?
How many hours of daylight does Istro have in April?
When are sunrise and sunset in April in Istro?
How many hours of sunshine does Istro have in April?
What is the UV index reading in April in Istro?
Average temperature in April
Istro, Greece
- Average high temperature in April: 18.2°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 April: 14.4°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 April
Istro, Greece
- Average pressure in April: 1014mbar
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 April
Istro, Greece
- Average wind speed in April: 15.1km/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 April
Istro, Greece
- Average humidity in April: 70%
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 April
Istro, Greece
- Average rainfall in April: 7mm
The wettest month (with the highest rainfall) is January (25mm).
The driest month (with the least rainfall) is August (0mm).
Average rainfall days in April
Istro, Greece
- Average rainfall days in April: 6.7 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 April
Istro, Greece
- Average sea temperature in April: 16°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 April /
Average sunshine in April
Istro, Greece
- Average daylight in April: 13h and 1min
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 April: 11h and 0min
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 April
Istro, Greece
- Average sunshine days in April: 22.2 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 April
Istro, Greece
- Average UV index in April: 5
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 April
Istro, Greece
- Average cloud cover in April: 19
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 April
Istro, Greece
- Average visibility in April: 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).
Istro, Greece
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