Rethimno
Greece
Long-term weather forecast
Long-term weather forecast

April weather forecast and climate
Rethimno, Greece

Dusk in the Venetian Rethimno harbor in Greece, with calm waters and heavily cloudy skies
Dusk in the Venetian Rethimno harbor in Greece, with calm waters and heavily cloudy skies
April is a pleasant spring month in Rethimno, Greece, with average temperature varying between 11°C (51.8°F) and 20°C (68°F).

Temperature

In April, the average high-temperature slightly increases, from a comfortable 16°C (60.8°F) in March, to an agreeable 20°C (68°F). The average low-temperature, in April, is 11°C (51.8°F).

Rainfall

In April, in Rethimno, the rain falls for 5 days. Throughout April, 32mm (1.3") of precipitation is accumulated. Throughout the year, in Rethimno, there are 67 rainfall days, and 664mm (26.1") of precipitation is accumulated.

Sea temperature

In Rethimno, the average seawater temperature in April is 16.9°C (62.4°F). For swimming, a surface water temperature of 16.9°C (62.4°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).

Daylight

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

Sunshine

In Rethimno, Greece, the average sunshine in April is 8h.

UV index

The average daily maximum UV index in Rethimno is 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to the UV radiation for the ordinary person.
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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in April in Rethimno?

In April, the average high-temperature is 20°C (68°F), and the average low-temperature is 11°C (51.8°F).

How much does it rain in Rethimno in April?

In April, in Rethimno, the rain falls for 5 days. Throughout April, 32mm (1.3") of precipitation is accumulated.

What is the sea water temperature in April in Rethimno?

In Rethimno, Greece, the average seawater temperature in April is 16.9°C (62.4°F). For swimming, a surface water temperature of 16.9°C (62.4°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 Rethimno?

The average length of the day in April is 13.1h.

How many hours of sunshine does Rethimno have in April?

In April, the average sunshine in Rethimno is 8h.

How high is the UV index in April in Rethimno?

In Rethimno, the average daily maximum UV index in April is 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to the Sun's UV rays.
Average temperature in April - Rethimno, Greece
  • Average high temperature in April: 20°C

The warmest month (with the highest average high temperature) is July (30°C).
The month with the lowest average high temperature is January (14°C).

  • Average low temperature in April: 11°C

Months with the highest average low temperature are July and August (21°C).
Coldest months (with the lowest average low temperature) are January and February (8°C).

Average rainfall in April - Rethimno, Greece
  • Average rainfall in April: 32mm

The wettest month (with the highest rainfall) is January (142mm).
Driest months (with the lowest rainfall) are July and August (1mm).

Average rainfall days in April - Rethimno, Greece
  • Average rainfall days in April: 5 days

The month with the highest number of rainy days is December (13 days).
Months with the lowest number of rainy days are July and August (0 days).

Average sea temperature in April - Rethimno, Greece
  • Average sea temperature in April: 16.9°C

The best month for swimming (with the highest average sea temperature) is August (25.9°C).
The coldest month (with the lowest average sea temperature) is February (16.1°C).

Average daylight in April / Average sunshine in April - Rethimno, 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: 8h

Months with most sunshine are June, July and August (Average sunshine: 12h).
Months with least sunshine are January and December (Average sunshine: 4).

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

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).