The banner above is an illustration, not a photograph. It was drawn to suggest the place, and the details may differ from the real thing. Giresun Island
Monthly averages for Giresun from the Turkish State Meteorological Service, measured over 1929–2025.
The warmest month is August, with an average high of 26.7 °C. The coldest is February, when the average low is 4.5 °C. March has the most rainy days (15.9 on average), and August the fewest (10.7).
Month by month
| Month | Avg high °C | Avg low °C | Rainy days |
|---|---|---|---|
| January | 10.7 | 4.8 | 14.7 |
| February | 10.7 | 4.5 | 14.3 |
| March | 11.9 | 5.4 | 15.9 |
| April | 15.1 | 8.5 | 14.7 |
| May | 19 | 12.8 | 14.2 |
| June | 23.6 | 17.2 | 11.9 |
| July | 26.2 | 19.9 | 10.8 |
| August | 26.7 | 20.4 | 10.7 |
| September | 23.7 | 17.4 | 12.5 |
| October | 20 | 13.8 | 14 |
| November | 16.4 | 10.2 | 13.2 |
| December | 13 | 7 | 14.3 |
January
In January, Giresun averages a high of 10.7 °C and a low of 4.8 °C, with about 14.7 rainy days.
February
In February, Giresun averages a high of 10.7 °C and a low of 4.5 °C, with about 14.3 rainy days.
March
In March, Giresun averages a high of 11.9 °C and a low of 5.4 °C, with about 15.9 rainy days.
April
In April, Giresun averages a high of 15.1 °C and a low of 8.5 °C, with about 14.7 rainy days.
May
In May, Giresun averages a high of 19 °C and a low of 12.8 °C, with about 14.2 rainy days.
June
In June, Giresun averages a high of 23.6 °C and a low of 17.2 °C, with about 11.9 rainy days.
July
In July, Giresun averages a high of 26.2 °C and a low of 19.9 °C, with about 10.8 rainy days.
August
In August, Giresun averages a high of 26.7 °C and a low of 20.4 °C, with about 10.7 rainy days.
September
In September, Giresun averages a high of 23.7 °C and a low of 17.4 °C, with about 12.5 rainy days.
October
In October, Giresun averages a high of 20 °C and a low of 13.8 °C, with about 14 rainy days.
November
In November, Giresun averages a high of 16.4 °C and a low of 10.2 °C, with about 13.2 rainy days.
December
In December, Giresun averages a high of 13 °C and a low of 7 °C, with about 14.3 rainy days.
Sources
Meteoroloji Genel Müdürlüğü — Giresun (1929–2025) (opens in a new tab)