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Monthly averages for Gaziantep from the Turkish State Meteorological Service, measured over 1940–2025.
The warmest month is July, with an average high of 35.4 °C. The coldest is January, when the average low is -0.5 °C. January has the most rainy days (12.9 on average), and August the fewest (0.5).
Month by month
| Month | Avg high °C | Avg low °C | Rainy days | Sun (h/day) |
|---|---|---|---|---|
| January | 7.6 | -0.5 | 12.9 | 3.5 |
| February | 9.5 | 0.2 | 11.5 | 4.3 |
| March | 14 | 3.1 | 11.6 | 5.4 |
| April | 19.8 | 7.4 | 9.6 | 6.8 |
| May | 25.6 | 12 | 6.8 | 8.4 |
| June | 31.3 | 17.3 | 2 | 10.3 |
| July | 35.4 | 21.3 | 0.5 | 10.6 |
| August | 35.4 | 21.1 | 0.5 | 9.9 |
| September | 31.2 | 16.4 | 1.4 | 8.7 |
| October | 24.4 | 10.2 | 5.8 | 7 |
| November | 16.4 | 4.7 | 8.1 | 5.3 |
| December | 9.9 | 1.2 | 11.7 | 3.5 |
January
In January, Gaziantep averages a high of 7.6 °C and a low of -0.5 °C, with about 12.9 rainy days.
February
In February, Gaziantep averages a high of 9.5 °C and a low of 0.2 °C, with about 11.5 rainy days.
March
In March, Gaziantep averages a high of 14 °C and a low of 3.1 °C, with about 11.6 rainy days.
April
In April, Gaziantep averages a high of 19.8 °C and a low of 7.4 °C, with about 9.6 rainy days.
May
In May, Gaziantep averages a high of 25.6 °C and a low of 12 °C, with about 6.8 rainy days.
June
In June, Gaziantep averages a high of 31.3 °C and a low of 17.3 °C, with about 2 rainy days.
July
In July, Gaziantep averages a high of 35.4 °C and a low of 21.3 °C, with about 0.5 rainy days.
August
In August, Gaziantep averages a high of 35.4 °C and a low of 21.1 °C, with about 0.5 rainy days.
September
In September, Gaziantep averages a high of 31.2 °C and a low of 16.4 °C, with about 1.4 rainy days.
October
In October, Gaziantep averages a high of 24.4 °C and a low of 10.2 °C, with about 5.8 rainy days.
November
In November, Gaziantep averages a high of 16.4 °C and a low of 4.7 °C, with about 8.1 rainy days.
December
In December, Gaziantep averages a high of 9.9 °C and a low of 1.2 °C, with about 11.7 rainy days.
Sources
Meteoroloji Genel Müdürlüğü — Gaziantep (1940–2025) (opens in a new tab)