Marmari weather in May 2026

Q: How hot is it in Marmari in May?

Daytime temperatures usually reach 24°C in Marmari in May, falling to 15°C at night.

Q: How sunny is it in Marmari in May?

There are normally 11 hours of bright sunshine each day in Marmari in May - that's 75% of daylight hours.

Q: How warm is the sea around Marmari in May?

The average sea temperature around Marmari in May is 19°C.

Q: Does it rain in Marmari in May?

There are usually 4 days with some rain in Marmari in May and the average monthly rainfall is 21mm.

Expect daytime maximum temperatures of 75°F in Marmari, Kos in May based on long-term weather averages. There are 11 hours of sunshine per day on average.

75
75°F max day temperature
11
11 hours of sunshine per day
4
4 days with some rainfall
59
59°F min night temperature
14
14 hours of daylight per day
0
No heat & humidity
0.7
0.7 inches of monthly rainfall
8
8 (Very High) UV index
66
66°F sea temperature

More about Marmari

Marmari by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Kos

Love Holidays sale: up to £600 off holidays

Sale

Save up to £600 on selected holidays in 2026/2027
Book discounted holidays with 'Sale' label
Discounts varies by destination & holiday type. T&Cs apply

Go to Love Holidays deal >>

Expires at 23:59 on Sunday 8th Feb 2026 · View all Love Holidays offers

The May weather guide for Kos (Marmari) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C) | Imperial (°F)