Istanbul, Turkey Weather

  1. Istanbul, Turkey Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Istanbul over the next 12 hours
  7. Temperature and possibility of rain in Istanbul in the coming days
  8. Rainfall in Istanbul in the coming days
  9. Istanbul Weather Summary
  10. Weather averages by month
  11. Istanbul's weather
  12. Frequently asked questions
  13. Comments
Istanbul, Weather
(Photo by Anna Berdnik on Unsplash)

Current conditions

Updated:
18°C
64.4°F
°C °F

Condition: Overcast

Pressure: 1,010 hPa

Feel like: 19 °C

Temperature: 18°C

Cloud: 87%

Humidity: 89%

Wind: N - 6 km/h

Visibility: 21.74 km

Weather forecast

Sat
19 Sep
18°C / 25°C
Overcast
Sun
20 Sep
17°C / 25°C
Overcast
Mon
21 Sep
15°C / 22°C
Slight Rain
Tue
22 Sep
13°C / 19°C
Partly Cloudy
Wed
23 Sep
14°C / 21°C
Drizzle
Hourly forecast today:
02:00 AM
16° / 18°
16° / 18°
Overcast
89% 11 km/h
03:00 AM
16° / 18°
16° / 18°
Overcast
90% 13 km/h
04:00 AM
16° / 18°
16° / 18°
Overcast
90% 12 km/h
05:00 AM
17° / 19°
17° / 19°
Overcast
88% 14 km/h
06:00 AM
17° / 19°
17° / 19°
Overcast
85% 21 km/h
07:00 AM
17° / 20°
17° / 20°
Overcast
80% 24 km/h
08:00 AM
17° / 21°
17° / 21°
Overcast
79% 27 km/h
09:00 AM
17° / 21°
17° / 21°
Overcast
76% 29 km/h
10:00 AM
16° / 22°
16° / 22°
Overcast
70% 32 km/h
11:00 AM
16° / 22°
16° / 22°
Overcast
69% 34 km/h
12:00 PM
16° / 22°
16° / 22°
Overcast
67% 32 km/h

30 Day Averages and Extremes

  • Average high 23.47°C
  • Average low 17.07°C
  • Hottest day 29°C (04 September 2026)
  • Coldest day 0°C (01 October 2026)
  • Average humidity 69.6%
  • Days with precipitation 13 days
  • Highest precipitation 30 mm (22 September 2026)

Yesterday's Data

  • Max: 23°C
  • Min: 17°C
  • Total Precipitation: 0 mm

Temperature and possibility of rain in Istanbul over the next 12 hours

Temperature and possibility of rain in Istanbul in the coming days

Rainfall in Istanbul in the coming days

Istanbul Climate Summary

Istanbul features a Mediterranean, hot summer (Köppen classification: Csa), with an average annual temperature of 16.97ºC (62.55ºF), which is about 2.01% higher than the national average for Turkey. Annually, the city experiences approximately 71.68 millimeters (2.82 inches) of rainfall, spread across 120.2 rainy days, accounting for 32.93% of the year.

Longitude 41.0082376
Latitude 28.9783589
Yearly high temperature 18.52ºC (65.34ºF)
Yearly low temperature 14.26ºC (57.67ºF)
Hottest month May 21.29ºC (70.32ºF)
Coldest month January 5.57ºC (42.03ºF)
Yearly precip 71.68mm (2.82in)
Days with rainfall 120.2 days (32.93%)
Driest month August (68.14%)
Wettest month October (71.63%)

Weather averages by month

Month High / Low (°C) Rain
January 8.67° / 5.57° 14.73 days
February 10.01° / 6.29° 13.55 days
March 12.29° / 7.8° 11.55 days
April 16.0° / 10.49° 10.91 days
May 21.29° / 15.58° 11.82 days
June 25.88° / 20.39° 8.55 days
July 28.11° / 22.76° 4.27 days
August 28.08° / 23.62° 2.91 days
September 25.08° / 21.04° 8.0 days
October 19.79° / 16.27° 11.82 days
November 15.9° / 12.96° 9.36 days
December 11.11° / 8.32° 12.73 days

Istanbul's weather

Frequently asked questions

1. What is the hottest month in Istanbul?

May has the highest average monthly temperature (daily mean of 21.29ºC) and January are the coolest (daily mean of 5.57ºC).

2. What should I wear in Istanbul today?

For today's very hot weather in Istanbul, with the high temperatures above 25ºC (77.0ºF), consider wearing:
- Loose and airy fabrics like linen or cotton
- Thin, moisture-wicking socks
- Wide-brimmed sun hat
- Sunscreen for skin protection

Temperature

Early
16°C / 18°C
Morning
17°C / 21°C
Afternoon
13°C / 23°C
Evening
15°C / 19°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 446
  • CO 178
  • NH3 0
  • NO2 20
  • O3 58
  • PM10 10
  • PM25 8
  • SO2 3
  • CH4 1,805

Sunrise / Sunset

03:48
16:06