Weather in Dezful

Stay informed about the latest weather conditions in Dezful. In this section, you will find current data, detailed forecasts, and visual weather charts.

The climate in Dezful, located in Iran, is characterized as arid, with very hot summers and mild, relatively wetter winters. The city experiences significant seasonal temperature variations, which is typical for this type of climate. Visitors should be prepared for sharp contrasts between seasons.

The summer months, especially from June to August, are distinguished by extreme heat: average temperatures during this period range between 35-38°C, while maximum readings can exceed 46°C. Precipitation is practically non-existent in summer, making this period very dry. Winter in Dezful (from December to February) is comparatively mild, with average temperatures around 11-14°C. It is during the winter months, as well as November and March, that the main, albeit small, portion of annual rainfall occurs. Spring is characterized by a rapid increase in heat: April is warm (average temperature around 23°C), and May is already hot (average temperature approaching 30°C), with a gradual decrease in rainfall. Autumn begins with a hot September (average temperature around 34°C), giving way to a very warm October (average temperature around 27-28°C), and a slight increase in rainfall towards the end of the season.

The climate in Dezful is characterized by significant annual temperature fluctuations. The hottest months are July and August, when the average temperature hovers around 37.8°C and 37.6°C respectively. During these months, daytime maximums can reach an impressive 46.6°C in July and 46.1°C in August, while nighttime minimums rarely fall below 29°C. January is considered the coldest month with an average temperature of 11.8°C, a minimum nighttime temperature of around 6.2°C, and a daytime maximum of up to 17.4°C.

Summer in Dezful is very hot and dry, especially from June to September, when rainfall is virtually absent. Daytime temperatures regularly exceed 40°C, and at the peak of summer, they can rise above 45°C. Nights also remain warm, creating a sensation of constant heat. Winter, on the contrary, is quite mild and cool. From December to February, average temperatures range from 11.8°C to 14.0°C. Although frosts are not typical, nighttime temperatures can drop to 6-8°C, while during the day the air warms up to 17-19°C.

Throughout the year, noticeable diurnal temperature fluctuations are observed in Dezful. The difference between daytime maximums and nighttime minimums is often 10-15°C, and can be even greater during the summer months. For example, in June, the average maximum reaches 44.8°C, while the minimum is 26.5°C, indicating significant cooling of the air after sunset, even during the hottest period. The transitional seasons, spring (March-May) and autumn (October-November), are characterized by rapid temperature changes: spring sees rapid warming from a moderate 17.2°C in March to a hot 29.4°C in May, while autumn sees gradual cooling from 27.6°C in October to 19.2°C in November.

The city of Dezful experiences pronounced seasonality in precipitation distribution throughout the year. The climate is characterized by a long dry period and a short, relatively wet winter. Snow, given the average monthly temperatures, is not a typical phenomenon for this region; precipitation falls predominantly as rain.

The so-called "wet" season falls in the period from late autumn to early spring. The highest amount of precipitation occurs from November to March. The wettest months are considered to be March and November, when an average of 4 mm of precipitation is recorded. In January, February, and December, about 3 mm falls. The number of rainy days in these months ranges from 7 to 9, indicating infrequent but periodic precipitation. For example, February averages 9 days with precipitation, while January and March each have 8 days.

On the other hand, from late spring and throughout the entire summer and early autumn, extremely dry weather sets in in Dezful. The months from June to September, as well as October, are the driest – during this period, precipitation amounts to 0 mm, and there are practically no rainy days (0-1 day in October). Even in May, precipitation is minimal – just 1 mm over two rainy days, signaling the transition to the dry season.

Overall, precipitation in Dezful is not abundant even during the wettest periods. The nature of the rain is likely light or moderate, without prolonged downpours, given the small average monthly volumes of falling moisture.

When planning a trip to Dezful, it is important to consider its hot desert climate. Summer, especially from June to August, is extremely hot here, with temperatures often exceeding 40°C and a virtually complete absence of rainfall. Therefore, during this period, you will need very light, breathable clothing made from natural fabrics (cotton, linen), a wide-brimmed hat, sunglasses, and high SPF sunscreen. Do not forget comfortable open shoes and closed light shoes for protection against sun and dust. Due to the dryness of the air, it is also recommended to bring moisturizer and lip balm.

Spring (March-May) and autumn (September-November) in Dezful are characterized by more moderate temperatures, although May and September can still be quite hot. In these seasons, the layering principle will come in handy: it can be warm during the day, while evenings and mornings are cooler. Bring T-shirts, light long-sleeved shirts, trousers or long skirts, as well as a light jacket or sweater. Winter (December-February) in Dezful is mild, with the average temperature holding around 11-13°C, but nights can be cool. Small amounts of precipitation are possible during this period, so a light waterproof jacket or umbrella may be useful. You will need jeans or thick trousers, sweaters, a fleece top, and a mid-season jacket.

Regardless of the time of year, for visiting Iran and Dezful in particular, women are advised to have a headscarf or shawl to cover their head when visiting religious sites and in public spaces, as well as clothing that covers arms and legs. Men should also prefer trousers over shorts in most situations. Comfortable closed walking shoes will be relevant in any season, as you will surely want to explore the city and its surroundings.