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: Partly Cloudy

Pressure: 949 hPa

Feel like: 14 °C

Temperature: 15°C

Cloud: 70%

Humidity: 70%

Wind: SW - 7 km/h

Visibility: 38.26 km

Weather forecast

Thu
14 May
8°C / 18°C
Fog
Fri
15 May
10°C / 23°C
Overcast
Sat
16 May
14°C / 23°C
Overcast
Sun
17 May
11°C / 19°C
Slight Rain Showers
Mon
18 May
9°C / 18°C
Slight Rain
Hourly forecast today:
03:00 AM
10° / 15°
10° / 15°
Partly Cloudy
70% 23 km/h
04:00 AM
9° / 16°
9° / 16°
Partly Cloudy
66% 20 km/h
05:00 AM
10° / 17°
10° / 17°
Partly Cloudy
66% 18 km/h
06:00 AM
10° / 18°
10° / 18°
Overcast
60% 20 km/h
07:00 AM
10° / 19°
10° / 19°
Overcast
55% 34 km/h
08:00 AM
11° / 20°
11° / 20°
Overcast
55% 38 km/h
09:00 AM
11° / 20°
11° / 20°
Partly Cloudy
54% 32 km/h
10:00 AM
11° / 21°
11° / 21°
Partly Cloudy
53% 42 km/h
11:00 AM
12° / 16°
12° / 16°
Slight Rain Showers
76% 54 km/h
12:00 PM
13° / 17°
13° / 17°
Partly Cloudy
75% 37 km/h
13:00 PM
12° / 17°
12° / 17°
Partly Cloudy
71% 34 km/h

30 Day Averages and Extremes

  • Average high 16.33°C
  • Average low 8.93°C
  • Hottest day 25°C (11 May 2026)
  • Coldest day 0°C (27 May 2026)
  • Average humidity 74.87%
  • Days with precipitation 26 days
  • Highest precipitation 95 mm (03 May 2026)

Yesterday's Data

  • Max: 21°C
  • Min: 12°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 cool weather in Kocaeli, with temperatures between 10ºC to 13ºC (50.0ºF to 55.4ºF), you should consider wearing:
- Knit hat (optional for cooler mornings)
- Casual shoes or sneakers
- Long-sleeve top or shirt
- Light scarf or wrap

Temperature

Early
10°C / 15°C
Morning
11°C / 20°C
Afternoon
12°C / 17°C
Evening
11°C / 12°C

Air quality

Moderate

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

  • CO2 451
  • CO 120
  • NH3 4
  • NO2 8
  • O3 61
  • PM10 26
  • PM25 10
  • SO2 2
  • CH4 1,433

Sunrise / Sunset

02:43
17:09