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Weather in Istanbul for May 2025

Your guide to Istanbul weather in May - trends and predictions
  • In general, the average temperature in Istanbul at the beginning of May is 16.6 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 21.4 °C by the end of May.

  • Istanbul sees moderate rainfall in May, averaging 7 rainy days.

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

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
24
Dry days
Average rainy days
7
Rainy days
Average snowy days
0
Snow days
Average temperatures
20°/13°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
73 %
Avg humidity

Istanbul in May average weather

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Temperatures trend during May in Istanbul

See the weather trend as well as the moving average line
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May weather day by day

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Date Weather Temperatures Rain UV More
1 May Cloudy
Cloudy
16° /12° 1.5 mm 4
2 May Sunny
Sunny
18° /11° 0.5 mm 5
3 May Patchy rain possible
Patchy rain possible
17° /11° 0.3 mm 4
4 May Moderate or heavy rain shower
Moderate or heavy rain shower
15° /12° 13.7 mm 4
5 May Patchy rain possible
Patchy rain possible
17° /11° 1.9 mm 4
6 May Moderate or heavy rain shower
Moderate or heavy rain shower
16° /11° 2.7 mm 4
7 May Overcast
Overcast
17° /11° 0 mm 5
8 May Partly cloudy
Partly cloudy
20° /13° 0 mm 6
9 May Patchy rain possible
Patchy rain possible
18° /13° 0.2 mm 4
10 May Patchy rain possible
Patchy rain possible
16° /12° 0.4 mm 4
11 May Cloudy
Cloudy
16° /11° 0.3 mm 4
12 May Overcast
Overcast
17° /11° 0 mm 4
13 May Sunny
Sunny
17° /10° 0.9 mm 5
14 May Partly cloudy
Partly cloudy
18° /10° 0.4 mm 5
15 May Patchy rain possible
Patchy rain possible
20° /12° 0.2 mm 5
16 May Sunny
Sunny
22° /13° 0 mm 6
17 May Moderate or heavy rain shower
Moderate or heavy rain shower
19° /13° 9.2 mm 5
18 May Patchy rain possible
Patchy rain possible
18° /13° 0.8 mm 5
19 May Patchy rain possible
Patchy rain possible
18° /13° 1.1 mm 4
20 May Patchy rain possible
Patchy rain possible
20° /13° 0.1 mm 5
21 May Overcast
Overcast
20° /13° 0 mm 5
22 May Overcast
Overcast
22° /14° 0 mm 5
23 May Patchy rain possible
Patchy rain possible
21° /14° 0.3 mm 5
24 May Patchy rain possible
Patchy rain possible
20° /14° 0.3 mm 5
25 May Moderate rain at times
Moderate rain at times
21° /14° 1.5 mm 5
26 May Partly cloudy
Partly cloudy
21° /15° 0.2 mm 6
27 May Sunny
Sunny
20° /14° 1.3 mm 5
28 May Patchy rain possible
Patchy rain possible
20° /14° 0.5 mm 5
29 May Moderate rain at times
Moderate rain at times
21° /15° 1.1 mm 6
30 May Moderate rain at times
Moderate rain at times
23° /16° 0.8 mm 6
31 May Patchy rain possible
Patchy rain possible
24° /17° 0.1 mm 6
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Important Notice
Our weather forecast for Istanbul 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 Istanbul forecast closer to your planned date for the most up-to-date weather information.

Istanbul in May - FAQ

What are the expected maximum and minimum temperatures in Istanbul during May?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Istanbul during May?
Moderate rainfall is anticipated in Istanbul during May, with a total of 76.9 mm spread over approximately 7 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Istanbul during May?
The average wind speed in Istanbul during May is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Istanbul in May?

As you prepare for your trip to Istanbul 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 Istanbul, during May, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Warm Clothing: Sweaters, hoodies, long pants
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
  • Accessories
    • Scarves: To protect you from the cold wind
    • Gloves/Mittens: Essential for cold weather
    • Warm Hats: Warm hats for insulation in cold weather
    • Umbrellas/Raincoats: For rainy days

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Location coordinates Where is Istanbul?

Get accurate weather forecasts for Istanbul, located at latitude 41.014 and longitude 28.95. Stay updated with localized weather information tailored for Istanbul.

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