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:
17°C
62.6°F
°C °F

Condition: Slight Rain Showers

Pressure: 961 hPa

Feel like: 17 °C

Temperature: 17°C

Cloud: 94%

Humidity: 87%

Wind: NNE - 12 km/h

Visibility: 21.14 km

Weather forecast

Sat
19 Sep
14°C / 22°C
Overcast
Sun
20 Sep
12°C / 23°C
Overcast
Mon
21 Sep
10°C / 20°C
Slight Rain Showers
Tue
22 Sep
10°C / 15°C
Overcast
Wed
23 Sep
7°C / 19°C
Overcast
Hourly forecast today:
11:00 AM
15° / 17°
15° / 17°
Slight Rain Showers
87% 31 km/h
12:00 PM
15° / 17°
15° / 17°
Slight Rain Showers
86% 34 km/h
13:00 PM
15° / 17°
15° / 17°
Slight Rain Showers
87% 34 km/h
14:00 PM
15° / 17°
15° / 17°
Slight Rain Showers
89% 34 km/h
15:00 PM
15° / 17°
15° / 17°
Slight Rain Showers
92% 25 km/h
16:00 PM
15° / 16°
15° / 16°
Overcast
93% 21 km/h
17:00 PM
15° / 16°
15° / 16°
Partly Cloudy
94% 18 km/h
18:00 PM
15° / 16°
15° / 16°
Partly Cloudy
95% 12 km/h
19:00 PM
15° / 15°
15° / 15°
Partly Cloudy
96% 9 km/h
20:00 PM
15° / 15°
15° / 15°
Partly Cloudy
95% 10 km/h
21:00 PM
14° / 15°
14° / 15°
Partly Cloudy
95% 9 km/h

30 Day Averages and Extremes

  • Average high 20.27°C
  • Average low 11.93°C
  • Hottest day 30°C (05 September 2026)
  • Coldest day 0°C (02 October 2026)
  • Average humidity 74.4%
  • Days with precipitation 17 days
  • Highest precipitation 64 mm (22 September 2026)

Yesterday's Data

  • Max: 17°C
  • Min: 14°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).

2. What should I wear in Kocaeli today?

For today's warm weather in Kocaeli, with temperatures between 18ºC to 21ºC (64.4ºF to 69.8ºF), you might consider wearing:
- Shorts or lightweight trousers
- Light, breathable socks
- Sunscreen (if spending time outdoors)
- Sunglasses

Temperature

Early
14°C / 15°C
Morning
15°C / 17°C
Afternoon
15°C / 17°C
Evening
14°C / 15°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 436
  • CO 143
  • NH3 2
  • NO2 0
  • O3 84
  • PM10 7
  • PM25 5
  • SO2 0
  • CH4 1,372

Sunrise / Sunset

03:44
16:03