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Weather in Kefalonia for May 2026

Your guide to Kefalonia weather in May - trends and predictions

    Official Weather Alert ⚠️

  • Yellow Warning - See hour by hour.

    • Temperatures

  • The forecast for the first days of May 2026 in Kefalonia predicts temperatures to be around 20 °C, close to the historical average.

  • In general, the average temperature in Kefalonia at the beginning of May is 18.6 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 21.4 °C by the end of May.

    • Rain 🌧️

  • Kefalonia experiences moderate rainfall in May, with an average of 9 rainy days and a total precipitation of 19.9 mm.

    • More

  • Is May a good time to visit Kefalonia? check out the best time to travel to Kefalonia page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
22
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/16°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
71 %
Avg humidity

Kefalonia Weather May

Move between months or click on a day
April
June
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Weather Alert Patchy rain possible
17°
2
Patchy rain possible
16°
3
Patchy rain possible
17°
4
Patchy rain possible
19°
5
Sunny
19°
6
Sunny
20°
7
Sunny
22°
8
Sunny
23°
9
Sunny
23°
10
Partly cloudy
21°
11
Sunny
19°
12
Sunny
20°
13
Sunny
21°
14
Cloudy
20°
15
Sunny
20°
16
Patchy rain possible
23°
17
Light rain shower
21°
18
Patchy rain possible
22°
19
Sunny
21°
20
Patchy rain possible
23°
21
Patchy rain possible
24°
22
Sunny
22°
23
Sunny
22°
24
Cloudy
22°
25
Overcast
22°
26
Partly cloudy
21°
27
Partly cloudy
22°
28
Patchy rain possible
21°
29
Patchy rain possible
21°
30
Patchy rain possible
21°
31
Sunny
22°

Temperatures trend during May in Kefalonia

See the weather trend as well as the moving average line

May weather in Kefalonia day by day

Click on a date for more information
April June
Date Weather Temperatures Rain UV More
1 May Patchy rain possible
Patchy rain possible
 17° /12° 0.4 mm 4
2 May Patchy rain possible
Patchy rain possible
 16° /12° 0.5 mm 6.6
3 May Patchy rain possible
Patchy rain possible
 17° /14° 0.7 mm 7
4 May Patchy rain possible
Patchy rain possible
 19° /13° 0.2 mm 7.4
5 May Sunny
Sunny
 19° /14° 0 mm 5
6 May Sunny
Sunny
 20° /14° 0 mm 5
7 May Sunny
Sunny
 22° /16° 0 mm 5
8 May Sunny
Sunny
 23° /17° 0 mm 6
9 May Sunny
Sunny
 23° /18° 0 mm 6
10 May Partly cloudy
Partly cloudy
 21° /17° 0 mm 5
11 May Sunny
Sunny
 19° /17° 0 mm 5
12 May Sunny
Sunny
 20° /17° 0 mm 5
13 May Sunny
Sunny
 21° /15° 0 mm 5
14 May Cloudy
Cloudy
 20° /14° 0.1 mm 5
15 May Sunny
Sunny
 20° /14° 1.1 mm 5
16 May Patchy rain possible
Patchy rain possible
 23° /16° 5.3 mm 5
17 May Light rain shower
Light rain shower
 21° /17° 0.4 mm 5
18 May Patchy rain possible
Patchy rain possible
 22° /16° 0.1 mm 6
19 May Sunny
Sunny
 21° /17° 0 mm 6
20 May Patchy rain possible
Patchy rain possible
 23° /17° 0 mm 6
21 May Patchy rain possible
Patchy rain possible
 24° /17° 0 mm 6
22 May Sunny
Sunny
 22° /17° 1.4 mm 6
23 May Sunny
Sunny
 22° /16° 0 mm 6
24 May Cloudy
Cloudy
 22° /17° 0 mm 6
25 May Overcast
Overcast
 22° /16° 1.9 mm 5
26 May Partly cloudy
Partly cloudy
 21° /16° 0.5 mm 6
27 May Partly cloudy
Partly cloudy
 22° /16° 0 mm 6
28 May Patchy rain possible
Patchy rain possible
 21° /16° 0.1 mm 6
29 May Patchy rain possible
Patchy rain possible
 21° /15° 0.4 mm 5
30 May Patchy rain possible
Patchy rain possible
 21° /16° 1.1 mm 5
31 May Sunny
Sunny
 22° /17° 0 mm 6
Next
Important Notice
Our weather forecast for Kefalonia in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Kefalonia forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Kefalonia weather in May vs April vs June

Compare May weather in Kefalonia with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
AprilMayJune
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Sunny
Sunny
Temperatures18°/13°21°/16°27°/20°
Rainfall17 mm20 mm1 mm
Wind21.5 km/h20.2 km/h20.4 km/h
Humidity69%71%63%
Rainy days4 days9 days1 days
Dry days26 days22 days29 days

Planning a trip to Kefalonia? Discover the best time to visit

Kefalonia in May - FAQ

What are the expected maximum and minimum temperatures in Kefalonia during May?

During May, expect a variety of temperatures with highs around 21° and lows near 16°, suitable for diverse activities and preferences.

How much rainfall should be expected in Kefalonia during May?

Expect minimal rainfall in Kefalonia during May, with a total of 19.9 mm over approximately 9 days. This minimal precipitation is unlikely to significantly impact plans.

What are the typical wind conditions in Kefalonia during May?

The average wind speed in Kefalonia during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Kefalonia in May?

As you prepare for your trip to Kefalonia in May, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Kefalonia, during May, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Umbrellas/Raincoats: For rainy days

May rainfall patterns in Kefalonia

Explore the daily rainfall trends and prepare for Kefalonias May weather 💧
Typically, Kefalonia has 9 rainy days in May with a total of 19.9 mm of rainfall.

UV exposure in Kefalonia during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️

Quick links

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Location coordinates Where is Kefalonia?

Get accurate weather forecasts for Kefalonia, located at latitude 38.122 and longitude 20.502. Stay updated with localized weather information tailored for Kefalonia.

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