Santorini
Greece
Long-term weather forecast
Long-term weather forecast

April weather forecast and climate
Santorini, Greece

The white houses on the Island of lovers overlooking clear blue waters with small boats sailing, in Santorini, Greece, a small mountain in the distance
The white houses on the Island of lovers overlooking clear blue waters with small boats sailing, in Santorini, Greece, a small mountain in the distance
April, the same as March, is another comfortable spring month in Santorini, Greece, with average temperature fluctuating between 19°C (66.2°F) and 12°C (53.6°F).

Temperature

In April, the average high-temperature slightly increases, from a comfortable 16°C (60.8°F) in March, to a still enjoyable 19°C (66.2°F). The average low-temperature, in April, is 12°C (53.6°F).

Rainfall

In Santorini, during 5 rainfall days, 28mm (1.1") of precipitation is typically accumulated. In Santorini, during the entire year, the rain falls for 65 days and collects up to 554mm (21.8") of precipitation.

Sea temperature

In April, the average sea temperature 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 in Santorini is 13.1h.

Sunshine

In April, the average sunshine is 8h.

UV index

In Santorini, Greece, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
The daily maximum UV index of 7 interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in April in Santorini?

The average high-temperature, in April, is 19°C (66.2°F), while the average low-temperature is 12°C (53.6°F).

How many days does it rain in April in Santorini?

In Santorini, in April, it is raining for 5 days, with typically 28mm (1.1") of accumulated precipitation.

What is the sea temperature in April in Santorini?

In April, the average sea temperature 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).

How many hours of daylight does Santorini have in April?

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

How many hours of sunshine does Santorini have in April?

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

What is the UV index reading in April in Santorini?

In April, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health threat from unsafe exposure to the Sun's UV rays.
Average temperature in April - Santorini, Greece
  • Average high temperature in April: 19°C

The warmest month (with the highest average high temperature) is July (28°C).
Months with the lowest average high temperature are January and February (14°C).

  • Average low temperature in April: 12°C

Months with the highest average low temperature are July and August (22°C).
Coldest months (with the lowest average low temperature) are January and February (9°C).

Average rainfall in April - Santorini, Greece
  • Average rainfall in April: 28mm

The wettest month (with the highest rainfall) is January (114mm).
Driest months (with the lowest rainfall) are July and August (1mm).

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

The month with the highest number of rainy days is December (12 days).
Months with the lowest number of rainy days are June, July, August and September (1 days).

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

The best month for swimming (with the highest average sea temperature) is August (25.7°C).
The coldest month (with the lowest average sea temperature) is February (16.5°C).

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

The month with the longest days is June (Average daylight: 14.6h).
The month with shortest days is December (Average daylight: 9.7h).

  • Average sunshine in April: 8h

Months with most sunshine are June and July (Average sunshine: 13h).
Months with least sunshine are January and December (Average sunshine: 4).

Average UV index in April - Santorini, 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).