When to go · Türkiye
When to go to Istanbul
When to go
What the averages say
On these averages, Istanbul has a mean high between 18°C and 32°C and under 150 mm of rain in May to October.
Of those months, it is also dry (under 50 mm of rain) and not humid in May to August.
- Cold months (a mean high under 10°C): January and February.
- The warmest month is August (29°C) and the coolest January (8°C). The wettest is December (82 mm) and the driest July (20 mm); about 624 mm of rain falls in a year.
How these sentences are worded
Each sentence is written from the figures by fixed rules, and says no more than they do. Mild to warm: a mean daily high from 18°C up to 32°C. Hot: 32°C or more. Cool: 10°C up to 18°C. Cold: under 10°C. Dry: under 50 mm of rain in the month; wet: 150 mm or more. Humid: a high of 25°C or more with relative humidity of 70% or more. A month is described as good for going when it is mild to warm and not wet.
The year at a glance
- Mild to warm and dry
- Mild to warm, humid or showery
- Hot
- Cool
- Wet
- Cold
- JanCold
- FebCold
- MarCool
- AprCool
- MayMild–warm, dry
- JunMild–warm, dry
- JulMild–warm, dry
- AugMild–warm, dry
- SeptMild–warm, mixed
- OctMild–warm, mixed
- NovCool
- DecCool
Month by month
Every month in Istanbul
| Month | High | Low | Rain | Humidity | Cloud | Sunlight (kWh/m²/day) | High in Dubai | What it is like |
|---|---|---|---|---|---|---|---|---|
| January | 8°C | 4°C | 79 mm | 83% | 76% | 1.5 | 23°C | Cold |
| February | 9°C | 4°C | 68 mm | 82% | 75% | 2.1 | 24°C | Cold |
| March | 12°C | 5°C | 53 mm | 79% | 67% | 3.4 | 27°C | Cool |
| April | 16°C | 9°C | 42 mm | 76% | 61% | 4.8 | 31°C | Cool |
| May | 21°C | 14°C | 35 mm | 74% | 55% | 6.1 | 35°C | Mild to warm and dry |
| June | 26°C | 19°C | 36 mm | 69% | 42% | 6.8 | 37°C | Mild to warm and dry |
| July | 29°C | 21°C | 20 mm | 66% | 28% | 7 | 39°C | Mild to warm and dry |
| August | 29°C | 22°C | 22 mm | 66% | 30% | 6.1 | 39°C | Mild to warm and dry |
| September | 25°C | 19°C | 54 mm | 68% | 46% | 4.4 | 37°C | Mild to warm, humid or showery |
| October | 20°C | 14°C | 70 mm | 76% | 59% | 2.8 | 34°C | Mild to warm, humid or showery |
| November | 15°C | 10°C | 63 mm | 80% | 68% | 1.8 | 29°C | Cool |
| December | 10°C | 6°C | 82 mm | 82% | 74% | 1.3 | 25°C | Cool |
The Dubai column is Dubai's mean daily high, for comparison.
Modelled averages for an area about 50 km across, not a weather station's record: NASA POWER climatology, 2001–2020. These data were obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program.
When to go nearby
When to go nearby
- Beylikdüzü26 kmGood for going: May to October
- Sultanbeyli28 kmGood for going: May to October
- Nilüfer89 kmGood for going: May to October
- Bursa91 kmGood for going: May to October
- Eskişehir191 kmGood for going: May to October
- Kütahya197 kmGood for going: May to October
- Burgas206 kmGood for going: May to October
- Çanakkale235 kmGood for going: May to October
From the journal
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