Monthly climate guide
Nicomedia weather in September
Expect warm weather in Nicomedia in September: afternoons reach about 27°C (80°F), while nights drop to around 16°C (61°F). Around 52 mm of rain falls over the month (some rain), and skies are mostly sunny. Daytime highs are 3°C cooler than August and 6°C warmer than October.
What stands out in September
- Seasonally, September counts as early autumn in Nicomedia.
- September is Nicomedia's third warmest month.
- Temperatures are falling — expect highs around 6°C lower by October.
- Nicomedia is usually about 2°C cooler than Balıkesir, 210 km away, in September.
Avg high
27°C
80°F
Avg low
16°C
61°F
Rainfall
52 mm
some rain
Humidity
71%
relative
Sky
34%
cloud · mostly sunny
Nicomedia weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 9°C / 47°F | 1°C / 33°F | 87 mm | 85% | 72% |
| February | 11°C / 52°F | 2°C / 36°F | 67 mm | 82% | 69% |
| March | 14°C / 57°F | 4°C / 39°F | 61 mm | 78% | 62% |
| April | 18°C / 64°F | 7°C / 44°F | 54 mm | 75% | 54% |
| May | 22°C / 72°F | 12°C / 53°F | 71 mm | 78% | 56% |
| June | 26°C / 78°F | 16°C / 61°F | 91 mm | 77% | 40% |
| July | 29°C / 84°F | 18°C / 65°F | 40 mm | 73% | 23% |
| August | 30°C / 85°F | 19°C / 66°F | 44 mm | 72% | 25% |
| September | 27°C / 80°F | 16°C / 61°F | 52 mm | 71% | 34% |
| October | 21°C / 69°F | 12°C / 53°F | 73 mm | 79% | 49% |
| November | 16°C / 60°F | 7°C / 44°F | 49 mm | 81% | 53% |
| December | 11°C / 51°F | 3°C / 37°F | 102 mm | 83% | 64% |
What to pack for September
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- A small travel umbrella, just in case
- Sunglasses
Is September a good time to visit Nicomedia?
Compare the months in the chart above to find your ideal window.
Best time to visit Nicomedia →Other Turkey cities in September
Cite or embed this data
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Nicomedia weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/turkey/nicomedia/september
<a href="https://weathercompare.eu/weather/turkey/nicomedia/september">Nicomedia weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/turkey/nicomedia" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Nicomedia weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/turkey/nicomedia/september">Nicomedia weather in September</a> – WeatherCompare</p>
Nicomedia in September: quick answers
Is September a good time to visit Nicomedia?
Yes. September is one of the best months for Nicomedia, with highs around 27°C and about 52 mm of rain.
How warm is Nicomedia in September?
Average highs are about 27°C (80°F) and average lows about 16°C (61°F), based on 10 years of daily data.
Does it rain a lot in Nicomedia in September?
Nicomedia typically gets around 52 mm of rain in September — some rain.
Figures are long-term averages for the area around Nicomedia (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.