Kocaeli, Turkey Weather

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

Current conditions

Updated:
-1°C
30.2°F
°C °F

Condition: Partly Cloudy

Pressure: 970 hPa

Feel like: -5 °C

Temperature: -1°C

Cloud: 68%

Humidity: 84%

Wind: NE - 6 km/h

Visibility: 29.6 km

Weather forecast

Sun
18 Jan
-1°C / 1°C
Moderate Snowfall
Mon
19 Jan
-1°C / 2°C
Snow Showers Slight
Tue
20 Jan
-2°C / 4°C
Slight Rain
Wed
21 Jan
0°C / 6°C
Slight Rain
Thu
22 Jan
0°C / 0°C
Snow Showers Slight
Hourly forecast today:
05:00 AM
-3° / -1°
-3° / -1°
Partly Cloudy
84% 25 km/h
06:00 AM
-4° / -1°
-4° / -1°
Partly Cloudy
83% 19 km/h
07:00 AM
-3° / -1°
-3° / -1°
Mainly Clear
87% 18 km/h
08:00 AM
-2° / 0°
-2° / 0°
Partly Cloudy
86% 14 km/h
09:00 AM
-1° / 0°
-1° / 0°
Partly Cloudy
84% 15 km/h
10:00 AM
0° / 0°
0° / 0°
Overcast
90% 20 km/h
11:00 AM
-1° / 0°
-1° / 0°
Snow Showers Slight
84% 22 km/h
12:00 PM
0° / 0°
0° / 0°
Slight Rain
94% 26 km/h
13:00 PM
-1° / 0°
-1° / 0°
Snow Showers Slight
87% 30 km/h
14:00 PM
-2° / 0°
-2° / 0°
Partly Cloudy
85% 30 km/h
15:00 PM
-3° / 0°
-3° / 0°
Partly Cloudy
84% 27 km/h

30 Day Averages and Extremes

  • Average high 4.67°C
  • Average low -0.1°C
  • Hottest day 15°C (03 January 2026)
  • Coldest day -6°C (26 January 2026)
  • Average humidity 80.23%
  • Days with precipitation 27 days
  • Highest precipitation 99 mm (11 January 2026)

Yesterday's Data

  • Max: 0°C
  • Min: -1°C
  • Total Precipitation: 2 mm

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

Temperature and possibility of rain in Kocaeli in the coming days

Rainfall in Kocaeli in the coming days

Kocaeli Climate Summary

Kocaeli features a Mediterranean, hot summer (Köppen classification: Csa), with an average annual temperature of 16.53ºC (61.75ºF), which is about 1.57% higher than the national average for Turkey. Annually, the city experiences approximately 91.34 millimeters (3.6 inches) of rainfall, spread across 140.55 rainy days, accounting for 38.51% of the year.

Longitude 40.8532704
Latitude 29.8815203
Yearly high temperature 19.7ºC (67.46ºF)
Yearly low temperature 10.4ºC (50.72ºF)
Hottest month September 26.38ºC (79.48ºF)
Coldest month January 2.38ºC (36.28ºF)
Yearly precip 91.34mm (3.6in)
Days with rainfall 140.55 days (38.51%)
Driest month August (68.79%)
Wettest month January (79.7%)

Weather averages by month

Month High / Low (°C) Rain
January 8.63° / 2.38° 15.82 days
February 11.04° / 3.82° 14.73 days
March 13.92° / 5.15° 14.27 days
April 18.23° / 7.31° 12.55 days
May 23.18° / 11.59° 14.18 days
June 27.12° / 15.59° 12.91 days
July 29.59° / 17.74° 6.45 days
August 29.91° / 18.31° 5.64 days
September 26.38° / 16.18° 9.64 days
October 20.67° / 12.44° 11.45 days
November 16.68° / 9.3° 9.09 days
December 11.02° / 5.0° 13.82 days

Kocaeli's weather

Frequently asked questions

1. What is the hottest month in Kocaeli?

September has the highest average monthly temperature (daily mean of 26.38ºC) and January are the coolest (daily mean of 2.38ºC).

Temperature

Early
-1°C / -1°C
Morning
-1°C / 0°C
Afternoon
-3°C / 0°C
Evening
-2°C / -1°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 449
  • CO 210
  • NH3 1
  • NO2 4
  • O3 53
  • PM10 10
  • PM25 7
  • SO2 3
  • CH4 1,429

Sunrise / Sunset

05:21
15:00