Climate and Average Weather Year Round in Mashhad Iran

In Mashhad, the summers are arid, clear, and hot and the winters are snowy, very cold, and partly cloudy. Over the course of the year, the temperature typically varies from 28°F to 94°F and is rarely below 18°F or above 100°F.

Based on the beach/pool score, the best time of year to visit Mashhad for hot-weather activities is from mid June to late August.

The hot season lasts for 3.7 months, from May 26 to September 15, with an average daily high temperature above 85°F. The hottest month of the year in Mashhad is July, with an average high of 94°F and low of 70°F.

The cold season lasts for 3.5 months, from November 26 to March 9, with an average daily high temperature below 55°F. The coldest month of the year in Mashhad is January, with an average low of 28°F and high of 46°F.

In Mashhad, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Mashhad begins around May 18 and lasts for 5.1 months, ending around October 23.

The clearest month of the year in Mashhad is August, during which on average the sky is clear, mostly clear, or partly cloudy 100% of the time.

The cloudier part of the year begins around October 23 and lasts for 6.9 months, ending around May 18.

The cloudiest month of the year in Mashhad is March, during which on average the sky is overcast or mostly cloudy 40% of the time.

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A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Mashhad varies throughout the year.

The wetter season lasts 5.2 months, from December 4 to May 10, with a greater than 8% chance of a given day being a wet day. The month with the most wet days in Mashhad is March, with an average of 4.6 days with at least 0.04 inches of precipitation.

The drier season lasts 6.8 months, from May 10 to December 4. The month with the fewest wet days in Mashhad is August, with an average of 0.1 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Mashhad is March, with an average of 4.0 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 14% on March 17.

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Mashhad experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 2.7 months, from February 9 to April 30, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Mashhad is March, with an average rainfall of 0.8 inches.

The rainless period of the year lasts for 9.3 months, from April 30 to February 9. The month with the least rain in Mashhad is August, with an average rainfall of 0.0 inches.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Mashhad experiences some seasonal variation in monthly snowfall.

The snowy period of the year lasts for 3.0 months, from December 17 to March 18, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Mashhad is January, with an average snowfall of 2.1 inches.

The snowless period of the year lasts for 9.0 months, from March 18 to December 17. The least snow falls around July 23, with an average total accumulation of 0.0 inches.

The length of the day in Mashhad varies significantly over the course of the year. In 2026, the shortest day is December 22, with 9 hours, 41 minutes of daylight; the longest day is June 21, with 14 hours, 38 minutes of daylight.

The earliest sunrise is at 4:13 AM on June 13, and the latest sunrise is 2 hours, 30 minutes later at 6:43 AM on January 7. The earliest sunset is at 4:16 PM on December 6, and the latest sunset is 2 hours, 37 minutes later at 6:53 PM on June 28.

Daylight saving time (DST) is not observed in Mashhad during 2026.

The figure below presents a compact representation of key lunar data for 2026. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The perceived humidity level in Mashhad, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Mashhad experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 2.8 months, from June 8 to September 2, with average wind speeds of more than 8.8 miles per hour. The windiest month of the year in Mashhad is July, with an average hourly wind speed of 11.2 miles per hour.

The calmer time of year lasts for 9.2 months, from September 2 to June 8. The calmest month of the year in Mashhad is October, with an average hourly wind speed of 6.3 miles per hour.

The predominant average hourly wind direction in Mashhad varies throughout the year.

The wind is most often from the east for 3.6 months, from March 24 to July 13 and for 2.3 months, from August 20 to October 28, with a peak percentage of 59% on September 13. The wind is most often from the north for 1.2 months, from July 13 to August 20, with a peak percentage of 57% on July 31. The wind is most often from the west for 4.9 months, from October 28 to March 24, with a peak percentage of 59% on January 1.

To characterize how pleasant the weather is in Mashhad throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best times of year to visit Mashhad for general outdoor tourist activities are from mid May to mid June and from mid August to early October, with a peak score in the second week of September.

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Mashhad for hot-weather activities is from mid June to late August, with a peak score in the third week of July.

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Mashhad typically lasts for 7.9 months (241 days), from around March 19 to around November 15, rarely starting before February 27 or after April 8, and rarely ending before October 17 or after December 5.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms in Mashhad should appear around March 15, only rarely appearing before February 26 or after April 4.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.5 months, from May 15 to August 29, with an average daily incident shortwave energy per square meter above 7.4 kWh. The brightest month of the year in Mashhad is June, with an average of 8.4 kWh.

The darker period of the year lasts for 3.4 months, from November 2 to February 14, with an average daily incident shortwave energy per square meter below 3.9 kWh. The darkest month of the year in Mashhad is December, with an average of 2.8 kWh.

For the purposes of this report, the geographical coordinates of Mashhad are 36.316 deg latitude, 59.568 deg longitude, and 3,291 ft elevation.

The topography within 2 miles of Mashhad contains only modest variations in elevation, with a maximum elevation change of 190 feet and an average elevation above sea level of 3,302 feet. Within 10 miles contains only modest variations in elevation (2,152 feet). Within 50 miles contains large variations in elevation (9,413 feet).

The area within 2 miles of Mashhad is covered by artificial surfaces (98%), within 10 miles by artificial surfaces (53%) and shrubs (23%), and within 50 miles by shrubs (71%) and cropland (11%).