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:
15°C
59.0°F
°C °F

Condition: Overcast

Pressure: 962 hPa

Feel like: 16 °C

Temperature: 15°C

Cloud: 100%

Humidity: 95%

Wind: NNE - 2 km/h

Visibility: 14.96 km

Weather forecast

Sun
21 Jun
13°C / 25°C
Partly Cloudy
Mon
22 Jun
13°C / 25°C
Fog
Tue
23 Jun
14°C / 27°C
Clear Sky
Wed
24 Jun
13°C / 27°C
Fog
Thu
25 Jun
15°C / 30°C
Fog
Hourly forecast today:
01:00 AM
14° / 15°
14° / 15°
Overcast
95% 10 km/h
02:00 AM
14° / 15°
14° / 15°
Overcast
96% 11 km/h
03:00 AM
14° / 15°
14° / 15°
Overcast
96% 11 km/h
04:00 AM
15° / 16°
15° / 16°
Overcast
94% 20 km/h
05:00 AM
15° / 17°
15° / 17°
Overcast
89% 22 km/h
06:00 AM
15° / 18°
15° / 18°
Overcast
82% 29 km/h
07:00 AM
14° / 18°
14° / 18°
Overcast
76% 30 km/h
08:00 AM
13° / 20°
13° / 20°
Overcast
67% 34 km/h
09:00 AM
13° / 21°
13° / 21°
Overcast
60% 36 km/h
10:00 AM
13° / 22°
13° / 22°
Overcast
55% 39 km/h
11:00 AM
12° / 22°
12° / 22°
Overcast
54% 41 km/h

30 Day Averages and Extremes

  • Average high 23.77°C
  • Average low 13.63°C
  • Hottest day 30°C (25 June 2026)
  • Coldest day 0°C (03 July 2026)
  • Average humidity 67.87%
  • Days with precipitation 13 days
  • Highest precipitation 22 mm (12 June 2026)

Yesterday's Data

  • Max: 23°C
  • Min: 15°C
  • Total Precipitation: 0 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).

2. What should I wear in Kocaeli today?

For today's very hot weather in Kocaeli, with the high temperatures above 25ºC (77.0ºF), consider wearing:
- UV-protective sunglasses
- Sunscreen for skin protection
- Breathable shorts or skirts
- Lightweight t-shirt or tank top

Temperature

Early
14°C / 15°C
Morning
13°C / 21°C
Afternoon
14°C / 21°C
Evening
14°C / 15°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 439
  • CO 112
  • NH3 4
  • NO2 2
  • O3 67
  • PM10 10
  • PM25 6
  • SO2 1
  • CH4 1,374

Sunrise / Sunset

02:28
17:35