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Kos in July: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Kos in July will be like? Take a look at our weather guide for Kos, based on historical data.
Check flight prices to Kos on Avionero:
July

Weather in Kos in July 2025

Great Weather
Warm
☀️
Sunny
🌊
Comfortable water
July is an ideal time to visit Kos if you're seeking a destination with brilliant weather. Anticipate average maximum temperatures of +81°F and about 31 sunny days, ensuring you'll have ample opportunities to soak up the sunshine. It's worth noting, though, that there may be some rainfall, with approximately 0 mm of precipitation over an average of 0 rainy days. So, prepare your sunglasses, a beach towel, and great walking shoes, as it's most likely going to be amazing weather. Search flights in one click on Avionero.

Average weather

☀️
+81°F
Avg. max. temperature
+64°F
Min.
+100°F
Max.
0 mm
Total precipitation
77%
Avg. humidity
7 m/s
Avg. wind
31 ☀️
Sunny Days
0 ⛅️
Cloudy
0 🌦
Rainy
Our opinion: Kos has great weather in July.
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Average temperature in Kos in July

Here are the expected maximum, average and minimum temperatures in Kos for July based on the historical data.
Last Year
Historical Data

Going from a maximum of +88°F during the day to a minimum of +73°F during the night, the temperature in July averages around +82°F.

The average maximum temperature goes up 38% by the end of the month, compared with the beginning of the month, from +75°F to +81°F.

Is Kos warm or cold in July?

Kos is typically warm in July.

Maximum temperatures go up compared to the previous month from +77°F to +81°F. The minimum temperature also goes up from +72°F to +75°F.

It’s generally warm, but pack a long-sleeve shirt for evenings.

July is one of the warmest months in Kos, here is the comparison with other months:

Water temperature in Kos in July

Water in Kos in July is Comfortable. It varies from +74°F to +80°F, with an average of +77°F. This is almost similar to the air temperature, which averages +81°F.

The water temperature in July is one of the warmest of the entire year:

The warmest water temperatures in Kos are reached in August, when the average sea temperature rises to +79°F. The coldest water temperatures are in February, with an average of +62°F.

Can you swim in Kos in July?

The water in Kos in July is pretty comfortable (+77°F in average). Ideal for swimming, especially in outdoor pools and open water. Suitable for recreational and casual swimmers.
🦭
Cold
Below +61°F
🏄‍♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
Don’t forget a large beach towel or two for drying off.

Climate in Kos in July

Kos weather looks like this, on average, in July and the surrounding months.
JuneJulyAugust
Avg. temperature
+77°F+81°F+82°F
Min. temperature
+59°F+64°F+72°F
Max. temperature
+100°F+100°F+100°F
Rainfall
2 mm0 mm0 mm
Wind
6 m/s7 m/s6 m/s
Avg. water temperature
+73°F+77°F+79°F
Humidity
79%77%79%
Air pressure
1009 HPa1006 HPa1007 HPa
Sunny days
263131
Cloudy days
300
Rainy days
100
Snowy days
000

July weather is still as great as in June. It’s getting warmer as July arrives. The average maximum temperature goes up from +77°F to +81°F during the day. As July arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 2 mm to 0 mm. It feels drier, as humidity decreases from 79% to 77%. Winds are stronger in comparison to June, going up from 6 m/s to 7 m/s on average. The good news is there are likely to be more sunny days in July, from 26 to 31.

August brings much the same weather, it remains great.

Wind

Wind speed in Kos in July based on historical data.
Last Year
Historical Data

The average wind speed is 7 m/s getting up to 11 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Kos is gradually decreasing during July, going from 8 m/s to 7 m/s over the course of the month.

How was the weather last July in Kos?

This is the weather in Kos in July 2023:
1 July
☀️
+76°F
2 July
☀️
+76°F
3 July
☀️
+77°F
4 July
☀️
+78°F
5 July
☀️
+78°F
6 July
☀️
+79°F
7 July
☀️
+81°F
8 July
☀️
+80°F
9 July
☀️
+80°F
10 July
☀️
+81°F
11 July
☀️
+81°F
12 July
☀️
+82°F
13 July
☀️
+83°F
14 July
☀️
+87°F
15 July
☀️
+87°F
16 July
☀️
+84°F
17 July
☀️
+83°F
18 July
☀️
+85°F
19 July
☀️
+84°F
20 July
☀️
+83°F
21 July
☀️
+86°F
22 July
☀️
+86°F
23 July
☀️
+87°F
24 July
☀️
+85°F
25 July
☀️
+86°F
26 July
☀️
+83°F
27 July
☀️
+81°F
28 July
☀️
+82°F
29 July
☀️
+81°F
30 July
☀️
+81°F
31 July
☀️
+81°F
In July 2023 Kos had 31 sunny days, 0 cloudy days, and 0 rainy days. The average maximum temperature was +82°F, with an absolute maximum of +88°F and a minimum of +75°F. The average humidity was 74%, with a maximum of 100% and a minimum of 57%. The average wind speed was 7 m/s, with a maximum of 13 m/s and a minimum of 1 m/s.
Are you planning a trip in July?

Climate Change Over the Years

This is how Kos climate has changed over the last 43 years.

The climate in Kos in July has not changed that much over the last 43 years.

The average temperature was the lowest in 1992 (+66°F) and the highest in 2018 (+75°F). The driest year was 1992 with only 335 mm of rainfall, and the wettest year was 2019 with 1062 mm.

FAQ

Frequently asked questions about the weather in Kos in July:

Is July a good time to visit Kos?

Yes, July is a great time to go to Kos, the weather couldn’t be better. Be ready to get outside, explore and enjoy. Check what other months that are a good time to visit Kos.

Can you sunbathe in Kos in July?

July is warm in Kos. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Can you swim in Kos in July?

Yes, the water temperature in Kos in July is considered moderate and enjoyable for most people, averaging around +77°F.

Is Kos rainy in July?

Kos is usually dry in July. Plan your packing around outdoor activities and exploring.

Is it sunny in Kos in July?

Yes, Kos is sunny in July. Prepare for lots of rays. Don’t forget to pack your sunglasses and sunscreen, and maybe pick up a wide-brimmed hat when you arrive.

Other cities in Greece

Check out the weather for other cities in Greece.

Monthly weather in Kos

Source of the data

For this page, we’ve looked at the typical weather in Kos, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.