Sun, sea & sand

Rethymno weather in April

Temperature, sea and sunshine in April: long-term averages from 30 years of weather data, not a forecast.

42

Holiday weather in April

Fair

Best time to visit: June – September

What is the weather like in Rethymno in April?

In April, Rethymno is mild: daytime highs average 20 °C, and nights cool down to about 13 °C. The sea averages 17.0 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 9 hours a day. Rain falls on about 6 days, adding up to 33 mm. All in all, April is a so-so month for a holiday in Rethymno.

April compared

How the weather changes from March to May. Tap a month to open it.

MarchMarAprilAprMayMay
Score254279
Day17°20°24°
Night11°13°17°
Sea16°17°19°
Sun7 h9 h10 h
Rain days1064

More details for April

Daylight
13 h 3 min06:51 – 19:54
UV index
9 · very highclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
12 km/haverage daily peakAll months
Cloud cover
40 %on averageAll months
Hot days
0 days30 °C or moreAll months
Time zone
UTC+3Europe/Athens

How the score comes together

  • Temperatureweight 35 %18 %
  • Seaweight 25 %0 %
  • Sunshineweight 20 %92 %
  • Few rainy daysweight 20 %84 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in April

  • Wetsuit for longer swims
  • Sunscreen
  • Sunglasses & sun hat
  • A jumper for the evenings

Rethymno in April: quick answers

Is Rethymno hot in April?

No. In April, Rethymno is mild: daytime highs average 20 °C and nights drop to about 13 °C.

Can you swim in Rethymno in April?

Only if you don't mind cold water: in April the sea averages just 17.0 °C. Comfortable swimming is possible from June to November.

Does it rain much in Rethymno in April?

Rain falls on about 6 days, adding up to 33 mm.

Rethymno month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences