Measurements:
°C
°F
Rethymno
76°F
E 8 mph
Feels like: 80°F
Precip: 1%
World Resorts Greece Rethymno Weather May Weather in Rethymno

Rethymno Weather: May

Average Day Temperature: 75.3°F
Average Night Temperature: 64.6°F
Sea Water Temperature: 69.3°F
Number of Sunny Days: 25 days
Sunshine Hours: 13.6 - 14.4 hours
Number of Rainy Days: 1 day
Precipitation Totals: 0.4 in

Air Temperature in May, °F

Select Year: 2026 2025 2024

The highest day temperature in May 2026 was 79°F. The lowest night temperature was 54°F. The average values for day and night temperatures during May were 71.4°F и 62.3°F respectivly.

Rethymno Water Sea Temperature in May, °F

Select Year: 2026 2025 2024

The average sea surface temperature in May 2026 for Rethymno was 68.8°F. The maximum and minimum values were 65.2°F and 74.4°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in May are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in May, in

Precipitation total in May for Rethymno is 0.4 in.

Wind Speed in May, mph

The average wind speed in May is 6.9 mph. It makes May the most windless month of the year for Rethymno.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Rethymno in May is 11.9 hours.

Best Time to Visit Rethymno
The most sunny months:
July 30 days
August 30 days
June 28 days
The most warm months:
August 89.0 °F
July 88.9 °F
September 84.8 °F
Warmest sea temperature:
August 83.6 °F
July 82.2 °F
September 81.6 °F
The most cold months:
January 59.0 °F
February 59.7 °F
March 62.4 °F
The most rainy months:
January 4 days
December 4 days
February 3 days
The most windy months:
January 10 mph
February 10 mph
March 9 mph

Rethymno on the Weather Map

Greece Resorts:
NAME
Athenes +84
Bali Gr +80
Chalkidiki +76
Chania +80
Corfu +74
Crete +70
Hanioti +82
Heraklion +78
Hersonissos +78
Kassandra +78
Paralia Katerini +80
Rhodes +78
Thasos +72
Thessaloniki +84
Zakynthos +74
24 Hours Weather Forecast
Rethymno
Local time: 18:26
03 jun, wednesday
2100 72°F
NE
4 mph
04 jun, thursday
0000 68°F
N
3 mph
0300 68°F
N
5 mph
0600 66°F
N
5 mph
0900 76°F
N
6 mph
1200 80°F
NE
4 mph
1500 80°F
E
5 mph
1800 78°F
NE
3 mph