Monthly climate guide
Istanbul weather in April
With highs near 17°C (62°F) and lows around 9°C (48°F), April feels mild in Istanbul. Rainfall averages about 47 mm (fairly dry) and the sky is often cloudy. Daytime highs are 4°C warmer than March and 5°C cooler than May.
What stands out in April
- Good walking weather for combining Blue Mosque and Hagia Sophia in one day.
- Istanbul is usually about 2°C cooler than Bursa, 90 km away, in April.
- Seasonally, April counts as mid-spring in Istanbul.
- Temperatures are climbing — May is around 5°C warmer.
Avg high
17°C
62°F
Avg low
9°C
48°F
Rainfall
47 mm
fairly dry
Humidity
75%
relative
Sky
56%
cloud · often cloudy
Istanbul weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 8°C / 47°F | 4°C / 39°F | 81 mm | 83% | 74% |
| February | 10°C / 50°F | 4°C / 40°F | 60 mm | 82% | 74% |
| March | 12°C / 54°F | 6°C / 43°F | 49 mm | 79% | 64% |
| April | 17°C / 62°F | 9°C / 48°F | 47 mm | 75% | 56% |
| May | 21°C / 71°F | 14°C / 58°F | 50 mm | 75% | 58% |
| June | 26°C / 79°F | 19°C / 66°F | 42 mm | 71% | 42% |
| July | 29°C / 84°F | 22°C / 71°F | 23 mm | 66% | 24% |
| August | 29°C / 85°F | 22°C / 72°F | 20 mm | 67% | 27% |
| September | 26°C / 79°F | 20°C / 67°F | 54 mm | 67% | 40% |
| October | 20°C / 69°F | 15°C / 58°F | 62 mm | 76% | 56% |
| November | 15°C / 60°F | 10°C / 51°F | 53 mm | 79% | 67% |
| December | 11°C / 51°F | 6°C / 43°F | 81 mm | 82% | 69% |
What to pack for April
- A warm sweater or fleece for layering
- A mid-weight jacket
- A small travel umbrella, just in case
Is April a good time to visit Istanbul?
Our Istanbul guide recommends: April to May or September to November, avoiding the summer heat and crowds.
A short Bosphorus ferry ride is one of the easiest ways to see the city from the water and cross between its European and Asian sides.
Best time to visit Istanbul →Other Turkey cities in April
Cite or embed this data
Writing about this destination? Copy a ready-made citation or embed a live widget — free, just keep the link.
Istanbul weather in April. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/turkey/istanbul/april
<a href="https://weathercompare.eu/weather/turkey/istanbul/april">Istanbul weather in April</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/turkey/istanbul" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Istanbul weather in April"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/turkey/istanbul/april">Istanbul weather in April</a> – WeatherCompare</p>
Istanbul in April: quick answers
Is April a good time to visit Istanbul?
Yes. April is one of the best months for Istanbul, with highs around 17°C and about 47 mm of rain.
How warm is Istanbul in April?
Average highs are about 17°C (62°F) and average lows about 9°C (48°F), based on 10 years of daily data.
Does it rain a lot in Istanbul in April?
Istanbul typically gets around 47 mm of rain in April — fairly dry.
When is the best time to visit Istanbul?
April to May or September to November, avoiding the summer heat and crowds.
Figures are long-term averages for the area around Istanbul (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.