İzmit weather in October
Temperature, sea and sunshine in October: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in October
Good
Best time to visit: May – September
What is the weather like in İzmit in October?
In October, İzmit is mild: daytime highs average 20 °C, and nights cool down to about 13 °C. The sea averages 19.5 °C – bracing, so a wetsuit helps for longer swims. Expect around 4 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 84 mm in total. All in all, October is a good month for a holiday in İzmit.
October compared
How the weather changes from September to November. Tap a month to open it.
| SeptemberSep | OctoberOct | NovemberNov | |
|---|---|---|---|
| Score | 84 | 71 | 61 |
| Day | 25° | 20° | 16° |
| Night | 17° | 13° | 8° |
| Sea | 23° | 20° | 16° |
| Sun | 7 h | 4 h | 3 h |
| Rain days | 8 | 10 | 9 |
More details for October
- Daylight
- 11 h 12 min07:10 – 18:22
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 14 km/haverage daily peakAll months
- Cloud cover
- 57 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+3Europe/Istanbul
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %23 %
- Few rainy daysweight 30 %55 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Wetsuit for longer swims
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
İzmit in October: quick answers
Is İzmit hot in October?
No. In October, İzmit is mild: daytime highs average 20 °C and nights drop to about 13 °C.
Can you swim in İzmit in October?
Only if you don't mind cold water: in October the sea averages just 19.5 °C. Comfortable swimming is possible from June to September.
Does it rain much in İzmit in October?
Rain is frequent, with about 10 rainy days and 84 mm in total.
İzmit month by month
The whole year in İzmitAll destinations: TurkeyWhere to go in OctoberSea temperature in October
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences