Heraklion
Greece
Long-term weather forecast
Long-term weather forecast

April weather forecast and climate
Heraklion, Greece

The Venetian walls and the Castle of Koule in the shipyards at Heraklion, Greece
The Venetian walls and the Castle of Koule in the shipyards at Heraklion, Greece
April is a pleasant spring month in Heraklion, Greece, with average temperature varying between 20.2°C (68.4°F) and 13°C (55.4°F).

Temperature

In April, the average high-temperature marginally rises, from a comfortable 16.8°C (62.2°F) in March, to a pleasant 20.2°C (68.4°F). The average low-temperature, in Heraklion, Greece, is 13°C (55.4°F).

Rainfall

In Heraklion, Greece, it is raining for 3.4 days, with typically 30mm (1.2") of accumulated precipitation. In Heraklion, during the entire year, the rain falls for 53.2 days and collects up to 500.6mm (19.7") of precipitation.

Sea temperature

In April, the average sea temperature in Heraklion, Greece, is 17.1°C (62.8°F). For most, swimming in 17.1°C (62.8°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

In April, the average length of the day is 13.1h.

Sunshine

In April, the average sunshine in Heraklion is 7.6h.

UV index

The average daily maximum UV index in Heraklion is 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to the Sun's UV rays for ordinary individuals.
The daily maximum UV index of 7 in April interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in April in Heraklion?

In Heraklion, Greece, in April, the average high-temperature is 20.2°C (68.4°F), and the average low-temperature is 13°C (55.4°F).

How many days does it rain in April in Heraklion?

In Heraklion, Greece, in April, during 3.4 rainfall days, 30mm (1.2") of precipitation is typically accumulated.

What is the sea water temperature in April in Heraklion?

In Heraklion, in April, the average water temperature is 17.1°C (62.8°F). For swimming, a surface water temperature of 17.1°C (62.8°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

What is the average length of the day in April in Heraklion?

In Heraklion, the average length of the day in April is 13.1h.

How long on average sun shines in April in Heraklion?

In April, the average sunshine in Heraklion is 7.6h.

What is the UV index reading in April in Heraklion?

The average daily maximum UV index in April in Heraklion is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to the UV radiation.
Average temperature in April - Heraklion, Greece
  • Average high temperature in April: 20.2°C

The warmest month (with the highest average high temperature) is July (28.6°C).
The month with the lowest average high temperature is January (15.2°C).

  • Average low temperature in April: 13°C

Months with the highest average low temperature are July and August (22.7°C).
Coldest months (with the lowest average low temperature) are January and February (10°C).

Average rainfall in April - Heraklion, Greece
  • Average rainfall in April: 30mm

The wettest month (with the highest rainfall) is January (91.5mm).
The driest month (with the lowest rainfall) is August (0.7mm).

Average rainfall days in April - Heraklion, Greece
  • Average rainfall days in April: 3.4 days

The month with the highest number of rainy days is January (10.1 days).
Months with the lowest number of rainy days are July and August (0.1 days).

Average sea temperature in April - Heraklion, Greece
  • Average sea temperature in April: 17.1°C

The best month for swimming (with the highest average sea temperature) is August (26.1°C).
The coldest month (with the lowest average sea temperature) is February (16.4°C).

Average daylight in April / Average sunshine in April - Heraklion, Greece
  • Average daylight in April: 13.1h

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.8h).

  • Average sunshine in April: 7.6h

The month with most sunshine is July (Average sunshine: 12h).
The month with least sunshine is January (Average sunshine: 3.8h).

Average UV index in April - Heraklion, Greece
  • Average UV index in April: 7

The month with the highest UV index is July (UV index 11).
The month with the lowest UV index is December (UV index 2).