Weather in Istanbul for April 2026
In general, the average temperature in Istanbul at the beginning of April is 14.7 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 17.1 °C by the end of April.
Istanbul in April brings notable rainfall, with an average of 18 rainy days and a total precipitation of 66.3 mm.
Is April a good time to visit Istanbul? check out the best time to travel to Istanbul page.
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Istanbul Weather April
Temperatures trend during April in Istanbul
April weather in Istanbul day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Apr. |  Overcast | 16° /9° | 0.6 mm | 4 | |
| 2 Apr. |  Partly cloudy | 15° /10° | 2.7 mm | 4 | |
| 3 Apr. |  Patchy rain possible | 16° /10° | 2.5 mm | 4 | |
| 4 Apr. | Patchy rain possible | 15° /9° | 3 mm | 4 | |
| 5 Apr. |  Moderate or heavy rain shower | 13° /8° | 8 mm | 3 | |
| 6 Apr. | Patchy rain possible | 15° /7° | 1.2 mm | 4 | |
| 7 Apr. |  Cloudy | 13° /7° | 6.2 mm | 3 | |
| 8 Apr. |  Sunny | 13° /7° | 2.6 mm | 4 | |
| 9 Apr. | Sunny | 15° /7° | 0 mm | 4 | |
| 10 Apr. | Patchy rain possible | 14° /8° | 6.2 mm | 4 | |
| 11 Apr. | Partly cloudy | 12° /6° | 4 mm | 3 | |
| 12 Apr. | Overcast | 13° /8° | 3.9 mm | 3 | |
| 13 Apr. | Sunny | 15° /8° | 0.1 mm | 4 | |
| 14 Apr. | Cloudy | 16° /9° | 0.6 mm | 4 | |
| 15 Apr. | Sunny | 17° /10° | 0.4 mm | 5 | |
| 16 Apr. | Partly cloudy | 17° /11° | 0.1 mm | 4 | |
| 17 Apr. | Moderate rain at times | 17° /10° | 5.3 mm | 4 | |
| 18 Apr. |  Heavy rain at times | 15° /9° | 4 mm | 4 | |
| 19 Apr. | Patchy rain possible | 13° /9° | 3.8 mm | 3 | |
| 20 Apr. | Partly cloudy | 14° /9° | 2.4 mm | 4 | |
| 21 Apr. | Sunny | 17° /9° | 1.7 mm | 5 | |
| 22 Apr. | Partly cloudy | 18° /11° | 0.3 mm | 5 | |
| 23 Apr. | Overcast | 18° /12° | 0.1 mm | 4 | |
| 24 Apr. | Sunny | 18° /11° | 0.2 mm | 5 | |
| 25 Apr. | Patchy rain possible | 17° /11° | 0.5 mm | 4 | |
| 26 Apr. | Cloudy | 18° /12° | 2.1 mm | 4 | |
| 27 Apr. | Sunny | 17° /10° | 2.5 mm | 5 | |
| 28 Apr. | Overcast | 17° /10° | 0.9 mm | 4 | |
| 29 Apr. | Sunny | 16° /10° | 0.1 mm | 4 | |
| 30 Apr. | Overcast | 17° /10° | 0.2 mm | 4 | |
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Istanbul weather in April vs March vs May
| March | April | May | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 11°/7° | 15°/10° | 20°/14° |
| Rainfall | 63 mm | 66 mm | 31 mm |
| Snowfall | 1 cm | 0 cm | 0 cm |
| Wind | 20.2 km/h | 20.4 km/h | 19.8 km/h |
| Humidity | 68% | 70% | 68% |
| Rainy days | 16 days | 18 days | 9 days |
| Snow days | 1 days | 0 days | 0 days |
| Dry days | 14 days | 12 days | 22 days |
Planning a trip to Istanbul? Discover the best time to visit
Istanbul in April - FAQ
What to pack to Istanbul in April?
As you prepare for your trip to Istanbul in April, 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 April, 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
April rainfall patterns in Istanbul
Quick links
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.