Istanbul
Elevation 100 m41.01° N, 28.96° E
When to go?
Mean 7 °C, 13 rain days in the month (94 mm).
Nothing against it.
Mean 7 °C, 12 rain days in the month (79 mm).
Nothing against it.
Mean 9 °C, 11 rain days in the month (75 mm).
Nothing against it.
Mean 12 °C, 8 rain days in the month (51 mm).
Nothing against it.
Mean 17 °C, 5 rain days in the month (36 mm).
Good for
- Ideal to visitTemperature and rain in the ideal range.
Mean 22 °C, 4 rain days in the month (34 mm).
Good for
- Ideal to visitTemperature and rain in the ideal range.
Mean 24 °C, 3 rain days in the month (25 mm).
Good for
- Ideal to visitTemperature and rain in the ideal range.
- Ideal for the seawater at 23 °C
Mean 24 °C, 3 rain days in the month (24 mm).
Good for
- Ideal to visitTemperature and rain in the ideal range.
- Ideal for the seawater at 24 °C
Mean 21 °C, 5 rain days in the month (54 mm).
Good for
- Ideal to visitTemperature and rain in the ideal range.
- Ideal for the seawater at 22 °C
Mean 16 °C, 8 rain days in the month (86 mm).
Good for
- Ideal to visitTemperature and rain in the ideal range.
Mean 13 °C, 9 rain days in the month (81 mm).
Nothing against it.
Mean 9 °C, 12 rain days in the month (111 mm).
Nothing against it.
The best months are May–October. Ideal for the sea: July–September.
What is the climate like?
Temperature and rain
Monthly min and max temperature (°C)
Monthly min and max temperature (°C)
How much it rains
Rain days and how much water
Rain days and how much water
Bars: length = rain days, thickness = mm on a rain day, area = the month's rain. 3 mm a day7 mm a day15 mm a day
Colour = the month's rain: 103060100160250400mm
Daylight hours
Daylight and sky: sunrise, sunset and cloud cover
daylight under a clear sky (average share)daylight under cloud
daylight under a clear sky (average share)daylight under cloud
Times on the 15th of each month, in local time: daylight saving where and when it applies, standard time in the other months.
Sea temperature: Sea of Marmara
Monthly mean sea temperature: Sea of Marmara (°C)
Monthly mean sea temperature: Sea of Marmara (°C)
Effect of climate change
Today's climate (1996–2025) compared with 1961–1990:
In short
Year by year
Temperature of each year
Against 1961–1990 the mean temperature of today (1996–2025) has changed by +0.7 °C; in the last ten years by +1.2 °C. Warmest year: 2024 (+1.9 °C), coldest: 1997 (−0.9 °C).
August and July warmed the most (+1.6 and +1.3 °C), April the least (0.0 °C). The warm season (above the annual mean of then, 14 °C) begins 1 day earlier and ends 6 days later.
Warming stripes: after an idea by Ed Hawkins (University of Reading), showyourstripes.info, CC BY 4.0.
Rain of each year (% against 1961–1990)
more rain than in 1961–1990less rain
Rain in a year: no clear trend, dry and wet years alternate as before.
The sea, then and now
+0.3 °Cthe sea today, compared with 1961–1990