Istanbul
May
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.
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24
Dry days
7
Rainy days
0
Snow days
20°/13°
Temperatures
21 km/h
Avg max wind
73 %
Avg humidity
Istanbul in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  16° | 2  18° | 3  17° | 4  15° | |||
| 5 17° | 6 16° | 7  17° | 8  20° | 9 18° | 10 16° | 11 16° |
| 12 17° | 13 17° | 14 18° | 15 20° | 16 22° | 17 19° | 18 18° |
| 19 18° | 20 20° | 21 20° | 22 22° | 23 21° | 24 20° | 25 21° |
| 26 21° | 27 20° | 28 20° | 29 21° | 30 23° | 31 24° |
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Temperatures trend during May in Istanbul
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Cloudy | 16° /12° | 1.5 mm | 4 | |
| 2 May | Sunny | 18° /11° | 0.5 mm | 5 | |
| 3 May | Patchy rain possible | 17° /11° | 0.3 mm | 4 | |
| 4 May | Moderate or heavy rain shower | 15° /12° | 13.7 mm | 4 | |
| 5 May | Patchy rain possible | 17° /11° | 1.9 mm | 4 | |
| 6 May | Moderate or heavy rain shower | 16° /11° | 2.7 mm | 4 | |
| 7 May | Overcast | 17° /11° | 0 mm | 5 | |
| 8 May | Partly cloudy | 20° /13° | 0 mm | 6 | |
| 9 May | Patchy rain possible | 18° /13° | 0.2 mm | 4 | |
| 10 May | Patchy rain possible | 16° /12° | 0.4 mm | 4 | |
| 11 May | Cloudy | 16° /11° | 0.3 mm | 4 | |
| 12 May | Overcast | 17° /11° | 0 mm | 4 | |
| 13 May | Sunny | 17° /10° | 0.9 mm | 5 | |
| 14 May | Partly cloudy | 18° /10° | 0.4 mm | 5 | |
| 15 May | Patchy rain possible | 20° /12° | 0.2 mm | 5 | |
| 16 May | Sunny | 22° /13° | 0 mm | 6 | |
| 17 May | Moderate or heavy rain shower | 19° /13° | 9.2 mm | 5 | |
| 18 May | Patchy rain possible | 18° /13° | 0.8 mm | 5 | |
| 19 May | Patchy rain possible | 18° /13° | 1.1 mm | 4 | |
| 20 May | Patchy rain possible | 20° /13° | 0.1 mm | 5 | |
| 21 May | Overcast | 20° /13° | 0 mm | 5 | |
| 22 May | Overcast | 22° /14° | 0 mm | 5 | |
| 23 May | Patchy rain possible | 21° /14° | 0.3 mm | 5 | |
| 24 May | Patchy rain possible | 20° /14° | 0.3 mm | 5 | |
| 25 May | Moderate rain at times | 21° /14° | 1.5 mm | 5 | |
| 26 May | Partly cloudy | 21° /15° | 0.2 mm | 6 | |
| 27 May | Sunny | 20° /14° | 1.3 mm | 5 | |
| 28 May | Patchy rain possible | 20° /14° | 0.5 mm | 5 | |
| 29 May | Moderate rain at times | 21° /15° | 1.1 mm | 6 | |
| 30 May | Moderate rain at times | 23° /16° | 0.8 mm | 6 | |
| 31 May | Patchy rain possible | 24° /17° | 0.1 mm | 6 | |
| Next | |||||
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
May rainfall patterns in Istanbul
Explore the daily rainfall trends and prepare for Istanbuls May weather 💧
UV exposure in Istanbul during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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