Climate Overview
The climate in Adıyaman is temperate. The average annual temperature is 17°C and approximately 562mm of precipitation falls per year. January is the wettest month, receiving around 129mm of rainfall. Adıyaman is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, February, December, when temperatures can drop to 0°C. Snowfall occurs from January to December, with around 55cm accumulating over the season.
Temperature
Adıyaman has a wide annual temperature range, spanning 37°C from the coldest to warmest months. August is the hottest month, with daytime highs reaching 37°C and an average of 30°C. January is the coolest month, with minimum temperatures around 0°C and an average of 4°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 7°C shift in average temperatures.
Precipitation
Adıyaman is a relatively dry area, receiving approximately 562mm of precipitation annually, which averages out to around 47mm per month. The wettest month is January, averaging 129mm of rainfall. December and March also tend to see above-average precipitation. The driest month is July, with just 1mm. That's 128mm less than January, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 55cm accumulating over the season. January typically sees the most snow at around 34cm.
Wind
Adıyaman is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months.
Seasons
3 days until Autumn
It is currently summer in Adıyaman, which began on June 21, 2026. Adıyaman is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 37°C, while the coldest stretch bottoms out in January near 0°C. Autumn is next, beginning on September 23, 2026 (3 days from now).
Spring
Temperatures range from 5 to 26°C. Precipitation is moderate at around 166mm for the season, averaging 55mm per month. Winds are generally light, averaging 7km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.
Summer
Temperatures range from 19 to 37°C. Precipitation is minimal, with only around 5mm for the entire season. Winds are generally light, averaging 8km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 6 to 32°C. Rainfall is relatively light, with around 83mm over the season and a monthly average of 28mm. Winds are generally light, averaging 7km/h. Layered clothing works best as temperatures gradually cool. Enjoy the crisp air and changing scenery.
Winter
Temperatures range from 0 to 10°C. Rainfall is heavy, totalling around 308mm across the season with a monthly average of 103mm. Expect around 52cm of snow accumulation during this period. Winds are generally light, averaging 7km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Adıyaman is during May and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 19mm per month. By contrast, August can be uncomfortably hot with highs reaching 37°C, while January is the coldest period with lows dropping to 0°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.
Monthly Climate Data
The table below shows monthly climate averages for Adıyaman based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.