Climate and monthly weather forecast
Yasuj, Iran

Yasuj, lying in the southwestern region of Iran, is seeped in a climate that falls under the Csa category as per the Köppen climate classification. This indicates a Mediterranean climate with hot summers, a trait that's well depicted in the fluctuating temperature readings gathered from the region. Delving deeper into the climatic nuances experienced in Yasuj, an annual temperature fluctuation from a chilling -2°C (28.4°F) to a scorching 35.1°C (95.2°F) is observed.

A key aspect of Yasuj’s climate is its relative humidity levels. Commencing the year in January at around 71%, the humidity dwindles down to almost half, 26%, from June to September, and then steadily climbs back up to 64% by December. Also noteworthy is the pattern in rainfall, with a stark contrast noticed between the heavy downpours from January to March, totalling over 500mm (19.69"), and the virtually dry months from May to October, where the rainfall accumulation hardly surpasses 4mm (0.16").

Daylight hours tend to extend from the year’s start at 10.2 hours in January, hitting a peak of 14.1 hours in June, and then dialing back down to 10.2 hours by December. Complementing this daylight pattern, sunshine hours clock in from 5.9 hours in January, touch a high of 12 hours in June, and spin back to 6.2 hours by the year's end. These collective dynamics paint a vivid picture of Yasuj's diverse weather patterns.

Visitors seeking to experience the full essence of sightseeing in Yasuj should aim for the period from April to June. During these spring to early summer months, daylight hours peak from 12.9 hours in April to a maximum of 14.1 hours in June. Meanwhile, sunshine hours are abundant, with an average of 8 hours in April soaring to 12 hours by June. The increased visibility coupled with comfortable temperatures ranging between 7.3°C (45.1°F) and 32.6°C (90.7°F) makes outdoor activities a delight.

The more challenging months for visitors tend to be between November and January. During this time, temperatures can drop to as low as -2°C (28.4°F), and given the city's high average rainfall rates of over 178mm (7.01") in January, the conditions can be a tad uncomfortable for those unaccustomed to harsher weather dynamics. The fewer daylight hours from 10.6 hours to 10.2 hours and lower sunshine duration dwindling from 7.3 hours to 5.9 hours also make outdoor exploration less feasible.

Come springtime from March until May, Yasuj sees a significant shift in climate from the chills of winter. With an average temperature hovering between 2.9°C (37.2°F) and 26.9°C (80.4°F), the weather sets a pleasant scene for locals and travelers alike. These months also witness a considerable decrease in rainfall, going down from 166mm (6.54") in March to a mere 15mm (0.59") in May. Correspondingly, daylight and sunshine hours enhance as they range from 12 hours to 13.7 hours and from 6.9 hours to 10.3 hours respectively.

Summers in Yasuj, running from June until August, welcome the hottest months of the year with temperatures peaking at a scorching 35.1°C (95.2°F) in July. However, reprieve comes in the form of low rainfall, with June receiving only 1mm (0.04"), virtually making it a dry summer. The tourists relish the extended daylight, from 14.1 hours to 13.2 hours, and ample sunshine prevailing for up to 12 hours in June.

Autumn, extending from September to November, signals a subtle shift in Yasuj. Temperatures begin to temper, swinging from 31.1°C (88°F) in September to a cool 17.3°C (63.1°F) by November. Rainfall barely registers with 0mm (0") in September increasing gradually to 65mm (2.56") in November. Daylight hours and sunshine duration trim down from 12.4 hours to 10.6 hours and from 10.5 hours to 7.3 hours, respectively.

Winter in Yasuj spans from December to February and brings with it a marked dip in temperature. The mercury column oscillates between an almost freezing 0.5°C (32.9°F) and a mild 10.5°C (50.9°F) during these months. Winter also ushers in the wettest period, with rainfall reaching a high of 205mm (8.07") in December. The daylight and sunshine hours are on the lower side, averaging from 10.2 hours to 11.1 hours and 6.2 hours to 6.8 hours during this season.

January in Yasuj, Iran treads the line between chilling winter lows and modest daytime highs. It sees bleakest temperatures of -2°C (28.4°F), a shift into harsher conditions from the relative comfort of December's temperatures. Weather in January »

February in Yasuj sees an improvement in the mercury readings, offering relief from January's severe cold. The average high rests at 10.5°C (50.9°F), distinguishing this month with a spike in warmth, which is welcomed by its residents. Weather in February »

March ushers in moderate warmth as Yasuj transitions from icy winter to the onset of spring. A marked improvement in temperatures, reaching up to 14.4°C (57.9°F), sets this month apart from its predecessor. Rainfall too witnesses a hike, offering the earth a much-needed drink and teaching returning greenery to life. Weather in March »

With the arrival of April, Yasuj starts enjoying the full effects of spring as warm weather seizes the cityscape. A significant dip in rainfall to just 65mm (2.56"), down from March's moderate showers, marks this as a drier month. Weather in April »

May brings to Yasuj a noticeable surge in warmth, signaling the end of spring and the beginning of early summer. Sunshine prevails unabated, decorating the city with brilliant light and clear skies. The decreased relative humidity of 38% from last month's 51% provides Yasuj with a relatively dry atmospheric makeup. Weather in May »

June pushes Yasuj into the full swing of summer, as temperatures soar to a magnificent 32.6°C (90.7°F). The substantial increase marks its status as the beginning of peak summer. Days get longer, and the sun outshines other weather elements, dominating the cityscape with its brilliance. Weather in June »

July in Yasuj is the eponym of summer, boasting maximum temperatures of 35.1°C (95.2°F) and making it the hottest month of the year. The city swelters under the unforgiving sun, with temperatures touching their highest point. The long daylight hours amplify this heat, subduing any chance of a refreshing shower. Weather in July »

Despite a slight drop in temperature from July's highs, August maintains the rigorous Yasuj summer heat. It competes with its predecessor for the hottest month title with an impressive high of 34.8°C (94.6°F). The characteristic dryness of the previous month continue unabated in August too. Weather in August »

Come September, Yasuj begins to retreat from intense summer temperatures while still embracing warmth. A tangible relief from the scorching heat of the previous months transforms September into a transition period. The burgeoning autumn is yet a month away, but the atmosphere carries an inkling of the oncoming change. Weather in September »

October in Yasuj witnesses a significant change in weather patterns, stepping firmly into the autumn season. The plunge from the sweltering heights of 31.1°C (88°F) in September to a milder 24.7°C (76.5°F) this month signifies this pivotal transformation. Weather in October »

November in Yasuj carries the essence of late autumn and indicates the incoming winter. There is a marked decrease in temperatures and an overall dampness due to a fivefold increase in rainfall from 11mm (0.43") in October to 65mm (2.56"). Weather in November »

December brings to Yasuj the full force of winter, as the mercury continues to dip, reaching frigid lows of just 0.5°C (32.9°F). The increase in humidity to 64% from the earlier 52% further intensifies the winter chill. The city wraps itself in a blanket of cold that is characteristic of this final month of the year. Weather in December »