Weather overview
Кум lies in a desert climate zone, where the weather is defined by sharp seasonal contrasts. Winters are cool, with daytime temperatures often hovering around +12.9 °C in January, while nights can drop to +0.4 °C. The air remains dry, and precipitation is rare but slightly more likely than in summer.
From May onward, Кум heats up rapidly, with summer bringing some of the hottest conditions in the region. By July, daytime temperatures frequently exceed +40 °C, making outdoor activities challenging without proper precautions. The dry heat persists until October, when temperatures begin to moderate, offering a brief but pleasant transition into cooler months.
Temperature
The coldest months in Кум are January and December, when average temperatures range from +0.4 °C to +14.6 °C. While snow is uncommon, chilly nights can feel colder due to the dry air. By March, the weather warms noticeably, with daytime highs reaching +21.6 °C and nights becoming milder.
Summer in Кум is intensely hot, with June, July, and August seeing average highs of +39.8 °C to +41.8 °C. Even nights remain warm, rarely dropping below +23.9 °C in June. The heat peaks in July, making midday excursions difficult without shade or hydration. By September, temperatures start to ease, though days can still feel very warm until October.
| Month | Minimum | Maximum |
|---|---|---|
| January | 0.4 | 12.9 |
| February | 2.8 | 15.2 |
| March | 8 | 21.6 |
| April | 14.3 | 28.3 |
| May | 18.8 | 33.8 |
| June | 23.9 | 39.8 |
| July | 26.6 | 41.8 |
| August | 24 | 40.3 |
| September | 20.6 | 36.4 |
| October | 13.8 | 28.4 |
| November | 7.9 | 19.7 |
| December | 3.2 | 14.6 |
Precipitation
Кум is one of the driest cities in Iran, with most of the year seeing little to no rainfall. The wettest period occurs in February, when precipitation averages 21.1 mm, though even this is modest compared to many other destinations. From June to September, rain is almost nonexistent, with monthly totals often below 1 mm.
The brief rainy season in Кум spans November to April, though downpours are rare. March and April see slightly higher chances of light rain, but the amounts remain low—17.7 mm and 9.6 mm, respectively. Travelers should not expect significant rainfall at any time of year, making Кум a reliable destination for those seeking dry conditions.
| Month | Precipitation |
|---|---|
| January | 10.7 |
| February | 21.1 |
| March | 17.7 |
| April | 9.6 |
| May | 5.7 |
| June | 0.2 |
| July | 0.4 |
| August | 1.9 |
| September | 0.4 |
| October | 3.9 |
| November | 13.7 |
| December | 9.6 |
What to pack
For winter visits to Кум, pack layers to adapt to the cool days and chilly nights. A warm jacket is useful for evenings, especially in January and December, when temperatures can dip near freezing. Comfortable walking shoes and a scarf for dust are also practical, as the dry air can feel harsh on the skin.
Summer in Кум demands lightweight, breathable clothing to cope with the extreme heat. Long sleeves and a wide-brimmed hat will help protect against the sun, while sunglasses and high-SPF sunscreen are essential. A reusable water bottle is a must, as staying hydrated is key to enjoying outdoor activities. If visiting in May or October, pack a mix of light layers for the transition between hot days and cooler nights.
| Month | Wind speed |
|---|---|
| January | 1.6 |
| February | 1.7 |
| March | — |
| April | 2.1 |
| May | 2.7 |
| June | 2.6 |
| July | 3.1 |
| August | 2.6 |
| September | 2.1 |
| October | 1.6 |
| November | 1.3 |
| December | 1.2 |