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: 19 °C

Temperature: 17°C

Cloud: 100%

Humidity: 81%

Wind: ENE - 0 km/h

Visibility: 34.4 km

Weather forecast

Tue
03 Nov
9°C / 14°C
Slight Thunderstorm
Wed
04 Nov
5°C / 9°C
Slight Rain
Thu
05 Nov
1°C / 7°C
Slight Rain
Fri
06 Nov
1°C / 7°C
Slight Rain
Sat
07 Nov
1°C / 11°C
Mainly Clear
Hourly forecast today:
12:00 PM
14° / 17°
14° / 17°
Slight Rain Showers
81% 10 km/h
13:00 PM
14° / 17°
14° / 17°
Overcast
82% 11 km/h
14:00 PM
14° / 16°
14° / 16°
Overcast
87% 10 km/h
15:00 PM
14° / 15°
14° / 15°
Overcast
91% 12 km/h
16:00 PM
13° / 14°
13° / 14°
Slight Thunderstorm
93% 15 km/h
17:00 PM
13° / 14°
13° / 14°
Slight Rain Showers
93% 14 km/h
18:00 PM
12° / 14°
12° / 14°
Overcast
92% 9 km/h
19:00 PM
12° / 13°
12° / 13°
Overcast
95% 8 km/h
20:00 PM
12° / 13°
12° / 13°
Slight Rain
96% 9 km/h
21:00 PM
12° / 13°
12° / 13°
Slight Thunderstorm
97% 9 km/h
22:00 PM
12° / 12°
12° / 12°
Slight Thunderstorm
98% 9 km/h

30 Day Averages and Extremes

  • Average high 13.8°C
  • Average low 7.2°C
  • Hottest day 22°C (21 October 2026)
  • Coldest day 0°C (14 November 2026)
  • Average humidity 79.77%
  • Days with precipitation 25 days
  • Highest precipitation 78 mm (04 November 2026)

Yesterday's Data

  • Max: 18°C
  • Min: 11°C
  • Total Precipitation: 5 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 mild weather in Kocaeli, with temperatures between 13ºC to 16ºC (55.4ºF to 60.8ºF), consider wearing:
- Sun hat (if spending time outdoors)
- Casual sneakers or loafers
- Lightweight sweater or cardigan
- Scarf (optional)

Temperature

Early
11°C / 12°C
Morning
14°C / 17°C
Afternoon
14°C / 15°C
Evening
12°C / 13°C

Air quality

Moderate

Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals

  • CO2 450
  • CO 173
  • NH3 5
  • NO2 18
  • O3 54
  • PM10 19
  • PM25 15
  • SO2 15
  • CH4 1,443

Sunrise / Sunset

04:33
14:54