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 snowfall in April
- Average snowfall 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
April
Weather in April
Temperature
As April sets, the average high-temperature shows a slight increase, moving up from a moderate 14.8°C (58.6°F) in March to a comfortable 18.5°C (65.3°F). Isthmia experiences an average low-temperature of 9°C (48.2°F) in the month of April.Humidity
The average relative humidity in April is 65%.Rainfall
In April, the rain falls for 10.7 days. Throughout April, 32mm (1.26") of precipitation is accumulated. Throughout the year, there are 121.1 rainfall days, and 396mm (15.59") of precipitation is accumulated.Snowfall
In Isthmia, snow does not fall in April through November.Sea temperature
In Isthmia, in April, the average water temperature is 15.9°C (60.6°F).Note: Most people find swimming in 15.9°C (60.6°F) unenjoyable. As the water temperature falls from 21°C (69.8°F) to 15°C (59°F), controlling one's breathing becomes harder.
Daylight
The average length of the day in April is 13h and 12min.On the first day of April, sunrise is at 07:12 and sunset at 19:51. On the last day of the month, sunrise is at 06:32 and sunset at 20:17 EEST.
Sunshine
In Isthmia, the average sunshine in April is 10.1h.UV index
In April, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 5 during April translates into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in Isthmia?
What is the average humidity in April in Isthmia?
How much does it rain in Isthmia in April?
When it does not snow in Isthmia?
Does it snow in Isthmia in April?
What is the sea temperature in April in Isthmia?
How many hours of daylight does Isthmia have in April?
When are sunrise and sunset in April in Isthmia?
How many hours of sunshine does Isthmia have in April?
What is the UV index intensity in April in Isthmia?
Average temperature in April
Isthmia, Greece
- Average high temperature in April: 18.5°C
The warmest month (with the highest average high temperature) is July (30.7°C).
The month with the lowest average high temperature is January (10.6°C).
- Average low temperature in April: 9°C
The month with the highest average low temperature is August (20.4°C).
The coldest month (with the lowest average low temperature) is January (4.1°C).
Average pressure in April
Isthmia, Greece
- Average pressure in April: 1014.2mbar
The month with the highest atmospheric pressure is December (1018.3mbar).
The month with the lowest atmospheric pressure is July (1011.6mbar).
Average wind speed in April
Isthmia, Greece
- Average wind speed in April: 8.5km/h
The windiest month (with the highest average wind speed) is August (9.5km/h).
The calmest month (with the lowest average wind speed) is November (7.6km/h).
Average humidity in April
Isthmia, Greece
- Average humidity in April: 65%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (50%).
Average rainfall in April
Isthmia, Greece
- Average rainfall in April: 32mm
The wettest month (with the highest rainfall) is March (53mm).
The driest month (with the least rainfall) is August (9mm).
Average rainfall days in April
Isthmia, Greece
- Average rainfall days in April: 10.7 days
The month with the highest number of rainy days is February (13.3 days).
The month with the least rainy days is August (5 days).
Average snowfall in April
Isthmia, Greece
- Average snowfall in April: 0mm
The month with the highest snowfall is December (15mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in April
Isthmia, Greece
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in April
Isthmia, Greece
- Average sea temperature in April: 15.9°C
The best month for swimming (with the highest average sea temperature) is August (26.3°C).
The coldest month (with the lowest average sea temperature) is February (15.3°C).
Average daylight in April /
Average sunshine in April
Isthmia, Greece
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in April: 10h and 1min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in April
Isthmia, Greece
- Average sunshine days in April: 17.7 days
The month with the most sunshine days is July (24.7 days).
The month with the least sunshine days is February (13.8 days).
Average UV index in April
Isthmia, Greece
- Average UV index in April: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in April
Isthmia, Greece
- Average cloud cover in April: 26
The month with the most cloud cover is January (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in April
Isthmia, Greece
- Average visibility in April: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and December (9km).
