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Average weather, temperature, rainfall, sunshine hours

The climate of Gorgan is
Mediterranean (according to the Köppen classification, Mediterranean climate with hot summers - Csa), with mild, relatively rainy winters and hot, muggy summers.
Gorgan (formerly Astarabad) is a city of 350,000 inhabitants located in northern Iran, in the province of Golestan (of which it is the capital), at almost 37 degrees north latitude. We are 40 kilometers (25 mi) east of the coast of the
Caspian Sea, the largest lake in the world, from which comes the humidity that makes this the only green area of Iran. However, the city is not as rainy as the area further west, located directly south of the lake (see Rasht), where precipitation exceeds 1,000 millimeters (40 inches) per year. In fact, the northeastern part of Golestan is practically desert.
Immediately south of the city are the
Alborz mountains, which separate the Caspian Sea from the arid plateau of Iran. Among the peaks stands out the Kuh-e Shahvar, 3,890 meters (12,762 feet) high.
From these mountains,
hot winds can blow, able to raise the temperature by several degrees, so much so that the heat records exceed 40 °C (104 °F) from April to October. At the end of May 2015, the temperature even reached 46 °C (115.1 °F).
The
winter, from December to February, is mild and quite rainy. However, it gets often cold at night, with lows around freezing. In addition, there can sometimes be
cold periods, and it can even snow. In the last thirty years, the record is -12 °C (10.5 °F), set in January 2008.
Summer, from June to August, is hot and muggy, with rare rains and some thunderstorms. The combination of temperature and humidity makes the heat unpleasant, furthermore, there can be very hot periods, with highs of 37/38 °C (99/100 °F).
Gorgan - Climate data
In Gorgan, the
average temperature of the coldest month (January) is of
7.4 °C, that of the warmest month (August) is of
28.2 °C. Here are the average temperatures.
Gorgan - Average temperatures (1991-2020) |
Month | Min | Max | Mean |
---|
January | 1.9 | 12.8 | 7.4 |
---|
February | 2.7 | 13.4 | 8 |
---|
March | 5.5 | 16.6 | 11 |
---|
April | 9.6 | 21.4 | 15.5 |
---|
May | 14.8 | 28 | 21.4 |
---|
June | 19.8 | 32.2 | 26 |
---|
July | 22.9 | 33.5 | 28.2 |
---|
August | 22.7 | 33.8 | 28.2 |
---|
September | 19.3 | 30.8 | 25 |
---|
October | 13.2 | 25.8 | 19.5 |
---|
November | 7.5 | 18.8 | 13.2 |
---|
December | 3.5 | 14.3 | 8.9 |
---|
Year | 12 | 23.5 | 17.7 |
---|
Precipitation amounts to
515 millimeters per year: so, it is at an intermediate level. It ranges from
17.4 millimeters in the driest month (July) to
66.3 millimeters in the wettest one (November). Here is the average precipitation.
Gorgan - Average precipitationMonth | Days |
---|
January | 54 | 6 |
---|
February | 55 | 7 |
---|
March | 66 | 8 |
---|
April | 44 | 7 |
---|
May | 32 | 5 |
---|
June | 25 | 3 |
---|
July | 17 | 3 |
---|
August | 19 | 3 |
---|
September | 39 | 4 |
---|
October | 53 | 4 |
---|
November | 66 | 6 |
---|
December | 46 | 6 |
---|
Year | 515 | 63 |
---|
There are on average around 2285
sunshine hours per year. Here are the average hours of sunshine per day.
Gorgan - Sunshine hoursMonth | Average | Total |
---|
January | 4.5 | 145 |
---|
February | 4.5 | 135 |
---|
March | 4.5 | 145 |
---|
April | 5.5 | 165 |
---|
May | 7.5 | 225 |
---|
June | 8.5 | 250 |
---|
July | 8 | 245 |
---|
August | 8.5 | 255 |
---|
September | 7 | 215 |
---|
October | 6.5 | 205 |
---|
November | 5.5 | 160 |
---|
December | 4.5 | 140 |
---|
Year | 6.3 | 2285 |
---|
Gorgan - Weather by month
Based on the period 1991-2020
January, the coldest month of the year, is generally a quite mild month. The average temperature is of
7.4 °C, with a minimum of
1.9 °C and a maximum of
12.8 °C.

On the coldest nights of the month, the temperature usually drops to around
-3 °C. However, it dropped to
-12 °C in January 2008.

On the warmest days of the month, the temperature usually reaches around
21.5 °C. However, it reached
26.9 °C in January 2016.

Precipitation amounts to
53.8 mm, distributed over 6 days.
The day lasts on average 10 hours and 0 minutes.

There are on average 4.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of
6.8 kph.
February is generally a quite mild month. The average temperature is of 8 °C, with a minimum of 2.7 °C and a maximum of 13.4 °C.
On the coldest nights of the month, the temperature usually drops to around -2 °C. However, it dropped to -7.4 °C in February 2014.
On the warmest days of the month, the temperature usually reaches around 23.5 °C. However, it reached 32 °C in February 1996.
Precipitation amounts to 55.2 mm, distributed over 7 days.
The day lasts on average 10 hours and 50 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of 8.7 kph.
March is generally a mild month. The average temperature is of 11 °C, with a minimum of 5.5 °C and a maximum of 16.6 °C.
On the coldest nights of the month, the temperature usually drops to around 0 °C. However, it dropped to -4 °C in March 2015.
On the warmest days of the month, the temperature usually reaches around 28.5 °C. However, it reached 34 °C in March 2004.
Precipitation amounts to 66.1 mm, distributed over 8 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 39% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of 9.5 kph.
April is generally a very mild month. The average temperature is of 15.5 °C, with a minimum of 9.6 °C and a maximum of 21.4 °C.
On the coldest nights of the month, the temperature usually drops to around 3 °C. However, it dropped to -0.3 °C in April 2020.
On the warmest days of the month, the temperature usually reaches around 32.5 °C. However, it reached 38.2 °C in April 2014.
Precipitation amounts to 43.9 mm, distributed over 7 days.
The day lasts on average 13 hours and 10 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 42% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of 9.4 kph.
May is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of 21.4 °C, with a minimum of 14.8 °C and a maximum of 28 °C.
On the coldest nights of the month, the temperature usually drops to around 10 °C. However, it dropped to 5.2 °C in May 1992.
On the warmest days of the month, the temperature usually reaches around 37.5 °C. However, it reached 46.2 °C in May 2015.
Precipitation amounts to 31.7 mm, distributed over 5 days.
The day lasts on average 14 hours and 10 minutes. So the days are long.
There are on average 7.5 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 69%.
The average wind speed is of 10.4 kph.
June is generally a warm to hot month. The average temperature is of 26 °C, with a minimum of 19.8 °C and a maximum of 32.2 °C.
On the coldest nights of the month, the temperature usually drops to around 15.5 °C. However, it dropped to 12.6 °C in June 1994.
On the warmest days of the month, the temperature usually reaches around 39 °C. However, it reached 45 °C in June 1995.
Precipitation amounts to 24.9 mm, distributed over 3 days.
The day lasts on average 14 hours and 35 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 8.5 hours of sunshine per day. So, the sun shines 57% of the time.
The average humidity is 63%.
The average wind speed is of 11.1 kph.
July is generally a very hot month. The average temperature is of 28.2 °C, with a minimum of 22.9 °C and a maximum of 33.5 °C.
On the coldest nights of the month, the temperature usually drops to around 19.5 °C. However, it dropped to 15 °C in July 2015.
On the warmest days of the month, the temperature usually reaches around 38.5 °C. However, it reached 43.2 °C in July 2020.
Precipitation amounts to 17.4 mm, distributed over 3 days.
The day lasts on average 14 hours and 25 minutes. So the days are long.
There are on average 8 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 66%.
The average wind speed is of 10 kph.
August, the hottest month of the year, is generally a very hot month. The average temperature is of 28.2 °C, with a minimum of 22.7 °C and a maximum of 33.8 °C.
On the coldest nights of the month, the temperature usually drops to around 18.5 °C. However, it dropped to 15 °C in August 2020.
On the warmest days of the month, the temperature usually reaches around 38.5 °C. However, it reached 43 °C in August 2008.
Precipitation amounts to 19.3 mm, distributed over 3 days.
The day lasts on average 13 hours and 30 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 67%.
The average wind speed is of 9.7 kph.
September is generally a warm to hot month. The average temperature is of 25 °C, with a minimum of 19.3 °C and a maximum of 30.8 °C.
On the coldest nights of the month, the temperature usually drops to around 14 °C. However, it dropped to 9.1 °C in September 2020.
On the warmest days of the month, the temperature usually reaches around 36.5 °C. However, it reached 43 °C in September 2017.
Precipitation amounts to 38.6 mm, distributed over 4 days.
The day lasts on average 12 hours and 25 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 69%.
The average wind speed is of 8.6 kph.
October is generally a warm month. The average temperature is of 19.5 °C, with a minimum of 13.2 °C and a maximum of 25.8 °C.
On the coldest nights of the month, the temperature usually drops to around 8 °C. However, it dropped to 4 °C in October 1995.
On the warmest days of the month, the temperature usually reaches around 34.5 °C. However, it reached 41.2 °C in October 2015.
Precipitation amounts to 52.9 mm, distributed over 4 days.
The day lasts on average 11 hours and 10 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 60% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is of 6.8 kph.
November is generally a mild month. The average temperature is of 13.2 °C, with a minimum of 7.5 °C and a maximum of 18.8 °C.
On the coldest nights of the month, the temperature usually drops to around 1.5 °C. However, it dropped to -6 °C in November 2016.
On the warmest days of the month, the temperature usually reaches around 27 °C. However, it reached 34.7 °C in November 2020.
Precipitation amounts to 66.3 mm, distributed over 6 days.
The day lasts on average 10 hours and 10 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 52% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of 5.6 kph.
December is generally a mild month. The average temperature is of 8.9 °C, with a minimum of 3.5 °C and a maximum of 14.3 °C.
On the coldest nights of the month, the temperature usually drops to around -1.5 °C. However, it dropped to -4 °C in December 2007.
On the warmest days of the month, the temperature usually reaches around 22 °C. However, it reached 27 °C in December 2003.
Precipitation amounts to 46.1 mm, distributed over 6 days.
The day lasts on average 9 hours and 40 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 4.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of 6.2 kph.