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Monthly averages for Bilecik from the Turkish State Meteorological Service, measured over 1939–2025.
The warmest month is August, with an average high of 28.7 °C. The coldest is January, when the average low is -0.2 °C. January has the most rainy days (14.3 on average), and August the fewest (3.4).
Month by month
| Month | Avg high °C | Avg low °C | Rainy days | Sun (h/day) |
|---|---|---|---|---|
| January | 6.1 | -0.2 | 14.3 | 3 |
| February | 7.9 | 0.5 | 12.9 | 3.6 |
| March | 11.5 | 2.5 | 13.1 | 4.7 |
| April | 17.2 | 6.7 | 10.9 | 6.3 |
| May | 22 | 10.9 | 10.4 | 7.9 |
| June | 25.9 | 14.3 | 7.9 | 9.6 |
| July | 28.5 | 16.3 | 3.9 | 10.5 |
| August | 28.7 | 16.5 | 3.4 | 10 |
| September | 24.9 | 13.2 | 5.1 | 8 |
| October | 19.4 | 9.6 | 8.4 | 5.4 |
| November | 13.7 | 5.7 | 9.8 | 3.9 |
| December | 8.1 | 2 | 13.3 | 2.8 |
January
In January, Bilecik averages a high of 6.1 °C and a low of -0.2 °C, with about 14.3 rainy days.
February
In February, Bilecik averages a high of 7.9 °C and a low of 0.5 °C, with about 12.9 rainy days.
March
In March, Bilecik averages a high of 11.5 °C and a low of 2.5 °C, with about 13.1 rainy days.
April
In April, Bilecik averages a high of 17.2 °C and a low of 6.7 °C, with about 10.9 rainy days.
May
In May, Bilecik averages a high of 22 °C and a low of 10.9 °C, with about 10.4 rainy days.
June
In June, Bilecik averages a high of 25.9 °C and a low of 14.3 °C, with about 7.9 rainy days.
July
In July, Bilecik averages a high of 28.5 °C and a low of 16.3 °C, with about 3.9 rainy days.
August
In August, Bilecik averages a high of 28.7 °C and a low of 16.5 °C, with about 3.4 rainy days.
September
In September, Bilecik averages a high of 24.9 °C and a low of 13.2 °C, with about 5.1 rainy days.
October
In October, Bilecik averages a high of 19.4 °C and a low of 9.6 °C, with about 8.4 rainy days.
November
In November, Bilecik averages a high of 13.7 °C and a low of 5.7 °C, with about 9.8 rainy days.
December
In December, Bilecik averages a high of 8.1 °C and a low of 2 °C, with about 13.3 rainy days.
Sources
Meteoroloji Genel Müdürlüğü — Bilecik (1939–2025) (opens in a new tab)