Climate in Zahedan (Iran)

The climate of Zahedan is subtropical desert (according to the Köppen classification, hot desert climate - BWh), with mild winters and very hot, sunny summers. Precipitation, decidedly scarce, even below 100 millimeters (4 inches) per year, occurs mostly from December to April.
Zahedan is a city of 585,000 inhabitants located in the south-east of Iran, in the province of Sistan and Baluchistan, at 1,380 meters (4,525 feet) above sea level and at 29 degrees north latitude. About 35 km (22 mi) to the north is a point where the border between three countries, Iran, Afghanistan and Pakistan, meets.
About 100 km (62 mi) to the south is Taftan volcano, 3,941 meters (12,930 ft) high. To the west, instead, is the Lut desert, a very hot area, whose altitude varies between 200 and 700 meters (650 and 2,300 ft).

Winter, from December to February, is mild, with rare rainfall. The temperature is often mild or very mild during the day, although it drops significantly at night, and can go around 0 °C (32 °F) or slightly below, especially in January.
Snowfall is rare, both because the winter is mild and because it is dry. However, there are sometimes cold periods, during which it can snow. During cold spells, the temperature can drop to -10 °C (14 °F) or below. In recent decades, the temperature has never dropped below -13 °C (8.5 °F), however, the record is -22 °C (-7.5 °F), set in January 1973.

Summer, from June to August, is very hot, although the humidity is low and the wind blows regularly. On the hottest days the temperature can exceed 40 °C (104 °F). In July 2024, it reached 43.8 °C (110.8 °F).

Zahedan - Climate data

In Zahedan, the average temperature of the coldest month (January) is of 7.8 °C (46 °F), that of the warmest month (July) is of 29.1 °C (84.4 °F). Here are the average temperatures.
Precipitation amounts to 80 millimeters (3.1 inches) per year: it is therefore at a desert level. It ranges from 0.1 mm (0 in) in the driest month (September) to 16.5 mm (0.6 in) in the wettest one (January). Here is the average precipitation.
There are on average around 3385 sunshine hours per year. Here are the average hours of sunshine per day.

Zahedan - Weather by month

Based on the period 1991-2020

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January, the coldest month of the year, is generally a quite mild month. However, there are remarkable differences between night and day. The average temperature is of 7.8 °C (46 °F), with a minimum of 0.8 °C (33.4 °F) and a maximum of 14.8 °C (58.6 °F).
On the coldest nights of the month, the temperature usually drops to around -7 °C (19.5 °F). However, it dropped to -11.3 °C (11.7 °F) in January 2006.
On the warmest days of the month, the temperature usually reaches around 22.5 °C (72.5 °F). However, it reached 27 °C (80.6 °F) in January 2012.
Precipitation amounts to 16.5 mm (0.6 in), distributed over 3 days.
The day lasts on average 10 hours and 30 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 71% of the time.
The average humidity is 45%.
The average wind speed is 13 kph (8 mph).

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February is generally a mild month. However, there are remarkable differences between night and day. The average temperature is of 10.7 °C (51 °F), with a minimum of 3.7 °C (38.7 °F) and a maximum of 17.7 °C (63.9 °F).
On the coldest nights of the month, the temperature usually drops to around -5 °C (23 °F). However, it dropped to -10.7 °C (12.7 °F) in February 2012.
On the warmest days of the month, the temperature usually reaches around 24.5 °C (76.5 °F). However, it reached 30 °C (86 °F) in February 2009.
Precipitation amounts to 12.4 mm (0.5 in), distributed over 2 days.
The day lasts on average 11 hours and 10 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 71% of the time.
The average humidity is 39%.
The average wind speed is 15 kph (10 mph).

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March is generally a very mild month. However, there are remarkable differences between night and day. The average temperature is of 15.4 °C (60 °F), with a minimum of 8.4 °C (47.1 °F) and a maximum of 22.4 °C (72.3 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 0 °C (32 °F). However, it dropped to -5.2 °C (22.6 °F) in March 1992.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 29 °C (84 °F). However, it reached 34.5 °C (94.1 °F) in March 2018.
Precipitation amounts to 13.9 mm (0.5 in), distributed over 2 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 64% of the time.
The average humidity is 34%. Hence, the air is normally dry.
The average wind speed is 15 kph (10 mph).

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April is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of 20.8 °C (69 °F), with a minimum of 13.2 °C (55.8 °F) and a maximum of 28.4 °C (83.1 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 5.5 °C (42 °F). However, it dropped to 0.4 °C (32.7 °F) in April 1994.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 34.5 °C (93.5 °F). However, it reached 38 °C (100.4 °F) in April 2007.
Precipitation amounts to only 8.6 mm (0.3 in), distributed over 2 days.
The day lasts on average 12 hours and 55 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 26%. Hence, the air is normally dry.
The average wind speed is 13 kph (8 mph).

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May is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of 25.3 °C (78 °F), with a minimum of 17.5 °C (63.5 °F) and a maximum of 33.1 °C (91.6 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 11.5 °C (53 °F). However, it dropped to 6 °C (42.8 °F) in May 2003.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 38 °C (100.5 °F). However, it reached 41 °C (105.8 °F) in May 2017.
Precipitation amounts to only 3.6 mm (0.1 in), and all occurs in one day.
The day lasts on average 13 hours and 35 minutes.
There are on average 10 hours of sunshine per day. So, the sun shines 73% of the time.
The average humidity is 20%. Hence, the air is normally dry.
The average wind speed is 13 kph (8 mph).

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June is generally a very hot month. However, there are remarkable differences between night and day. The average temperature is of 28.2 °C (83 °F), with a minimum of 19.9 °C (67.8 °F) and a maximum of 36.4 °C (97.5 °F).
On the coldest nights, the temperature usually drops to around 15 °C (59 °F). However, it dropped to 11.2 °C (52.2 °F) in June 2000.
On the warmest days, the temperature usually reaches around 41.5 °C (106.5 °F). However, it reached 43.4 °C (110.1 °F) in June 2017.
Precipitation amounts to only 1.2 mm (0 in), distributed over 0 days.
The day lasts on average 14 hours and 0 minutes. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 11 hours of sunshine per day. So, the sun shines 78% of the time.
The average humidity is 15%. Hence, the air is normally dry.
The average wind speed is 13 kph (8 mph).

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July, the hottest month of the year, is generally a very hot month. However, there are remarkable differences between night and day. The average temperature is of 29.1 °C (84 °F), with a minimum of 20.8 °C (69.4 °F) and a maximum of 37.4 °C (99.3 °F).
On the coldest nights of the month, the temperature usually drops to around 16.5 °C (62 °F). However, it dropped to 13.4 °C (56.1 °F) in July 2009.
On the warmest days of the month, the temperature usually reaches around 41 °C (106 °F). However, it reached 43 °C (109.4 °F) in July 2014.
Precipitation amounts to only 1 mm (0 in), distributed over 0 days.
The day lasts on average 13 hours and 50 minutes.
There are on average 11 hours of sunshine per day. So, the sun shines 80% of the time.
The average humidity is 15%. Hence, the air is normally dry.
The average wind speed is 13 kph (8 mph).

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August is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of 27 °C (81 °F), with a minimum of 18.1 °C (64.6 °F) and a maximum of 36 °C (96.8 °F).
On the coldest nights of the month, the temperature usually drops to around 14 °C (57 °F). However, it dropped to 10 °C (50 °F) in August 1996.
On the warmest days of the month, the temperature usually reaches around 39.5 °C (103 °F). However, it reached 42 °C (107.6 °F) in August 2003.
Precipitation amounts to only 0.2 mm (0 in), distributed over 0 days.
The day lasts on average 13 hours and 10 minutes.
There are on average 11 hours of sunshine per day. So, the sun shines 84% of the time.
The average humidity is 15%. Hence, the air is normally dry.
The average wind speed is 11 kph (7 mph).

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September is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of 23.3 °C (74 °F), with a minimum of 13.7 °C (56.7 °F) and a maximum of 32.9 °C (91.2 °F).
On the coldest nights, the temperature usually drops to around 9 °C (48.5 °F). However, it dropped to 0.9 °C (33.6 °F) in September 1994.
On the warmest days, the temperature usually reaches around 37 °C (99 °F). However, it reached 41 °C (105.8 °F) in September 2001.
Precipitation amounts to only 0.1 mm (0 in), distributed over 0 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 10.5 hours of sunshine per day. So, the sun shines 85% of the time.
The average humidity is 16%. Hence, the air is normally dry.
The average wind speed is 10 kph (6 mph).

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October is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of 18.9 °C (66 °F), with a minimum of 9.6 °C (49.3 °F) and a maximum of 28.2 °C (82.8 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 4 °C (39.5 °F). However, it dropped to -0.8 °C (30.6 °F) in October 1994.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 33.5 °C (92.5 °F). However, it reached 37.2 °C (99 °F) in October 1995.
Precipitation amounts to only 4 mm (0.2 in), distributed over 0 days.
The day lasts on average 11 hours and 25 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 84% of the time.
The average humidity is 23%. Hence, the air is normally dry.
The average wind speed is 9 kph (5 mph).

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November is generally a mild month. However, there are remarkable differences between night and day. The average temperature is of 13.4 °C (56 °F), with a minimum of 4.9 °C (40.8 °F) and a maximum of 21.9 °C (71.4 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -2.5 °C (28 °F). However, it dropped to -8.6 °C (16.5 °F) in November 1993.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 28.5 °C (83 °F). However, it reached 34 °C (93.2 °F) in November 2006.
Precipitation amounts to only 3.9 mm (0.2 in), and all occurs in one day.
The day lasts on average 10 hours and 40 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 82% of the time.
The average humidity is 32%. Hence, the air is normally dry.
The average wind speed is 10 kph (6 mph).

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December is generally a mild month. However, there are remarkable differences between night and day. The average temperature is of 9 °C (48 °F), with a minimum of 1 °C (33.8 °F) and a maximum of 17.1 °C (62.8 °F).
On the coldest nights of the month, the temperature usually drops to around -7.5 °C (18.5 °F). However, it dropped to -12.3 °C (9.9 °F) in December 2003.
On the warmest days of the month, the temperature usually reaches around 23.5 °C (74 °F). However, it reached 28.6 °C (83.5 °F) in December 2016.
Precipitation amounts to 12.5 mm (0.5 in), and all occurs in one day.
The day lasts on average 10 hours and 20 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 7.5 hours of sunshine per day. So, the sun shines 72% of the time.
The average humidity is 40%.
The average wind speed is 11 kph (7 mph).