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 17.7 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 22.7 °C by the end of May.
Istanbul experiences moderate rainfall in May, with an average of 9 rainy days and a total precipitation of 34 mm.
Temperatures
Rain 🌧️
22
Dry days
9
Rainy days
0
Snow days
20°/13°
Temperatures
20 km/h
Avg max wind
68 %
Avg humidity
Istanbul in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  18° | 2  19° | 3  18° | 4  16° | |||
| 5 18° | 6 17° | 7 18° | 8 20° | 9 18° | 10 17° | 11 17° |
| 12 19° | 13 20° | 14 20° | 15 21° | 16 22° | 17 21° | 18  20° |
| 19 19° | 20 21° | 21 20° | 22  21° | 23 22° | 24 22° | 25 22° |
| 26 22° | 27 22° | 28 23° | 29  22° | 30 24° | 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 | Sunny | 18° /12° | 0.8 mm | 4 | |
| 2 May | Partly cloudy | 19° /12° | 0.3 mm | 5 | |
| 3 May | Patchy rain possible | 18° /12° | 1.1 mm | 4 | |
| 4 May | Cloudy | 16° /11° | 7.5 mm | 4 | |
| 5 May | Patchy rain possible | 18° /10° | 1 mm | 4 | |
| 6 May | Cloudy | 17° /11° | 1.5 mm | 4 | |
| 7 May | Partly cloudy | 18° /12° | 0 mm | 5 | |
| 8 May | Sunny | 20° /12° | 0.6 mm | 5 | |
| 9 May | Sunny | 18° /12° | 0.2 mm | 5 | |
| 10 May | Sunny | 17° /11° | 0.2 mm | 4 | |
| 11 May | Sunny | 17° /11° | 0.2 mm | 5 | |
| 12 May | Sunny | 19° /11° | 0 mm | 5 | |
| 13 May | Sunny | 20° /12° | 0.4 mm | 5 | |
| 14 May | Patchy rain possible | 20° /12° | 0.3 mm | 5 | |
| 15 May | Patchy rain possible | 21° /13° | 0.2 mm | 5 | |
| 16 May | Partly cloudy | 22° /14° | 0.7 mm | 6 | |
| 17 May | Sunny | 21° /14° | 4.6 mm | 5 | |
| 18 May | Heavy rain at times | 20° /13° | 3.3 mm | 5 | |
| 19 May | Patchy rain possible | 19° /13° | 0.7 mm | 5 | |
| 20 May | Sunny | 21° /13° | 0.1 mm | 5 | |
| 21 May | Sunny | 20° /13° | 4.3 mm | 5 | |
| 22 May | Overcast | 21° /14° | 0.4 mm | 5 | |
| 23 May | Patchy rain possible | 22° /14° | 0.2 mm | 5 | |
| 24 May | Sunny | 22° /15° | 0.4 mm | 5 | |
| 25 May | Sunny | 22° /15° | 1.3 mm | 6 | |
| 26 May | Partly cloudy | 22° /15° | 0.1 mm | 6 | |
| 27 May | Sunny | 22° /15° | 0.7 mm | 6 | |
| 28 May | Patchy rain possible | 23° /15° | 0.3 mm | 6 | |
| 29 May | Moderate or heavy rain shower | 22° /16° | 2 mm | 5 | |
| 30 May | Sunny | 24° /17° | 0.4 mm | 6 | |
| 31 May | Patchy rain possible | 24° /16° | 0.5 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?
In May, Istanbul can expect light to moderate rainfall, totaling 34 mm across approximately 9 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Istanbul during May?
The average wind speed in Istanbul during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
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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