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Monthly averages for Adıyaman from the Turkish State Meteorological Service, measured over 1963–2025.
The warmest month is July, with an average high of 38 °C. The coldest is January, when the average low is 1.5 °C. January has the most rainy days (12.4 on average), and August the fewest (0.5).
Month by month
| Month | Avg high °C | Avg low °C | Rainy days | Sun (h/day) |
|---|---|---|---|---|
| January | 8.7 | 1.5 | 12.4 | 3.9 |
| February | 10.5 | 2.5 | 11.6 | 4.7 |
| March | 15.1 | 5.7 | 11.9 | 5.9 |
| April | 20.8 | 10 | 10.9 | 7.4 |
| May | 26.8 | 14.5 | 8.6 | 9.4 |
| June | 33.4 | 19.9 | 2.5 | 11.7 |
| July | 38 | 23.9 | 0.6 | 12.1 |
| August | 37.8 | 23.6 | 0.5 | 11.4 |
| September | 33.2 | 19.2 | 1.3 | 9.8 |
| October | 25.7 | 13.9 | 6.4 | 7.3 |
| November | 17.1 | 7.7 | 8.8 | 5.5 |
| December | 10.9 | 3.5 | 11.6 | 3.9 |
January
In January, Adıyaman averages a high of 8.7 °C and a low of 1.5 °C, with about 12.4 rainy days.
February
In February, Adıyaman averages a high of 10.5 °C and a low of 2.5 °C, with about 11.6 rainy days.
March
In March, Adıyaman averages a high of 15.1 °C and a low of 5.7 °C, with about 11.9 rainy days.
April
In April, Adıyaman averages a high of 20.8 °C and a low of 10 °C, with about 10.9 rainy days.
May
In May, Adıyaman averages a high of 26.8 °C and a low of 14.5 °C, with about 8.6 rainy days.
June
In June, Adıyaman averages a high of 33.4 °C and a low of 19.9 °C, with about 2.5 rainy days.
July
In July, Adıyaman averages a high of 38 °C and a low of 23.9 °C, with about 0.6 rainy days.
August
In August, Adıyaman averages a high of 37.8 °C and a low of 23.6 °C, with about 0.5 rainy days.
September
In September, Adıyaman averages a high of 33.2 °C and a low of 19.2 °C, with about 1.3 rainy days.
October
In October, Adıyaman averages a high of 25.7 °C and a low of 13.9 °C, with about 6.4 rainy days.
November
In November, Adıyaman averages a high of 17.1 °C and a low of 7.7 °C, with about 8.8 rainy days.
December
In December, Adıyaman averages a high of 10.9 °C and a low of 3.5 °C, with about 11.6 rainy days.
Sources
Meteoroloji Genel Müdürlüğü — Adıyaman (1963–2025) (opens in a new tab)