Late spring · Weather & things to do
Istanbul in May
Istanbul warms up: highs climb to 70°F (21°C), from 60°F in April, with lows of 57°F (14°C) and about 1.4 in (35 mm) of rain.
May opens the best stretch on our comfort score, at 92/100 (3rd of 12).
- Avg high
- 70°F (21°C)
- Avg low
- 57°F (14°C)
- Rain
- 1.4 in (35 mm)
- Humidity
- 74%
- Cloud cover
- 55%
- Daylight
- ~14 h 18 min
- Comfort score
- 92/100 · Great
What May feels like
Days are warm, averaging 70°F (21°C), easy weather for being outside from morning to evening.
Lows average 57°F (14°C).
Rain is moderate at about 1.4 in (35 mm) for the month.
Plan around May
May is one of Istanbul's best months on the climate data.
- First warm month: highs reach 70°F, up from 60°F in April.
- Opens the best-scoring stretch on our comfort score: May – October.
- The year's biggest warm-up: highs jump 5°C (10°F) from April.
- Comfort improves from 83/100 in April to 92/100.
- May sits inside the Apr – Jun, Sep – Oct window our Istanbul, Cappadocia & Ephesus route recommends.
What to pack for May
- Light, breathable clothes70°F afternoons
- Sunscreen, sunglasses and a hathigh UV on clear days
- Comfortable walking shoesmost picks involve some walking
What to do in Istanbul in May
With conditions on your side, the picks below favor time outside.
Topkapı Palace
Ottoman sultans' palace with courtyards, treasury and the Harem.
Mandabatmaz
Tiny Beyoğlu coffee spot famous for thick, foamy Turkish coffee.
Hagia Sophia
Sixth-century domed church, later mosque, with Byzantine mosaics.
Çiya Sofrası
Kadıköy restaurant reviving regional Anatolian dishes rarely found elsewhere.
Bosphorus Ferry
Public ferry cruise up the strait past palaces and wooden mansions.
Why now May scores 92/100 for comfort, good conditions for being outside.
Nearby in May
- Selçuk in May~228 mi · highs 82°F, 1.3 in rain · 6°C (12°F) warmer by day, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Istanbul in May: quick answers
Is May a good time to visit Istanbul?
Yes. On the climate data it's one of the best months, scoring 92/100. Expect highs of 70°F (21°C) and 1.4 in (35 mm) of rain. May is inside the Apr – Jun, Sep – Oct window our Istanbul, Cappadocia & Ephesus route recommends.
How hot is Istanbul in May?
Average highs are 70°F (21°C) and average lows 57°F (14°C), making it the 5th-warmest month by daytime highs.
Does it rain a lot in Istanbul in May?
Not much: about 1.4 in (35 mm) of rain falls across May on average, the 3rd-driest month of the year. The annual total is about 24.6 in (624 mm).
What should I pack for Istanbul in May?
Bring light, breathable clothes (70°F afternoons), sunscreen, sunglasses and a hat (high UV on clear days) and comfortable walking shoes (most picks involve some walking).
More on Istanbul
Routes in season in May
- Istanbul, Cappadocia & Ephesus Apr – Jun, Sep – Oct
Planning Istanbul in May?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.