December Weather in Mashhad, Iran

Last updated: August 21, 2025

December in Mashhad, Iran presents a chilly yet intriguing climate. With maximum temperatures reaching 19°C (66°F) and minimums plummeting to -12°C (11°F), visitors experience a vibrant temperature contrast throughout the month. On average, temperatures hover around 3°C (38°F), creating a brisk atmosphere. Precipitation is mild, totaling 14 mm (0.6 in) over just three days, while the humidity sits at a moderate 69%, adding a sense of crispness to the air. This blend of conditions makes December a unique time to explore Mashhad's winter charm.

December Temperature in Mashhad

In December, Mashhad experiences a noticeable chill, with temperatures reflecting the onset of winter. The month begins with minimums dropping to around -12°C (11°F) and maxing out at a modest 19°C (66°F). The average temperature hovers around 3°C (38°F), marking a stark contrast to the milder conditions of fall. As the year draws to a close, daily temperatures fluctuate more dramatically than in preceding months, highlighting a trend of increasing cold as January approaches. Despite the chill, the relatively mild maximums provide opportunities for outdoor exploration, making December a unique time to experience the beauty of Mashhad’s winter landscape.

December Weather in Mashhad: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Mashhad, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mashhad, December typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec343746566676807569554438
Data source: Temperature data for Mashhad generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Mashhad

In Mashhad, Iran, the December climate reflects a transitional phase as the region moves into winter. With just 14 mm (0.6 in) of precipitation over 3 days, December sees a noticeable drop from the wetter months of March and April, which receive significantly higher rainfall. This decrease follows a consistent trend, culminating in the year's lowest precipitation levels in the summer months, where rain is almost nonexistent. After the relatively damp autumn, December's light rainfall marks the onset of colder, drier conditions, helping to set the stage for the winter season ahead. Overall, this month encapsulates a shift in weather patterns, paving the way for the colder months while still providing sporadic moisture.

December Precipitation Trends in Mashhad

The chart displays monthly precipitation patterns in Mashhad, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Mashhad, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec21527371346111132514
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Mashhad

In Mashhad, Iran, December marks a notable increase in humidity, reaching 69%, a slight rise from November's 67%. This pattern reflects a steady trend of elevated moisture levels during the winter months, contrasting sharply with the summer's arid conditions, where humidity plummets to as low as 19% in August. As the year progresses, humidity levels generally decrease from the consistent 66% found in the colder months of January through March, dipping to their annual low in July. However, as December approaches, the winter chill brings a resurgence in humidity, creating a more humid atmosphere that sets the stage for the cozy winter months ahead.

December Average Humidity in Mashhad

This chart illustrates the average monthly humidity levels in Mashhad, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Mashhad is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec67%66%66%57%47%34%20%19%26%44%67%69%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mashhad

In December, Mashhad, Iran experiences a moderate UV Index of 3, indicating a decrease in sun intensity as winter sets in. This drop marks a contrast to the extreme levels seen in the summer months, where UV Index values peaked at 12 in May through July, requiring just 10 minutes for skin to burn. As the year winds down, the 30-minute burn time this month is reflective of the overall trend of diminishing UV exposure, allowing residents and visitors to enjoy outdoor activities with greater ease. However, it’s still important to stay aware of UV levels, and you can find detailed information here.

Maximum UV Index Levels in Mashhad for December

The chart shows the monthly maximum UV Index (UVI) for Mashhad in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Mashhad typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458101212121110743
Data source: Mashhad December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Mashhad

As December settles over Mashhad, Iran, the city experiences a gentle decline in sunshine hours, with a total of 269 hours basking in daylight. This marks a noticeable dip from the vibrant summer months, where sunshine peaked at 410 hours in July. Interestingly, while December may bring shorter days, it is still lit by a generous amount of sunlight compared to the earlier winter months, offering a soft transition into the New Year. The overall trend shows that as the seasons shift, Mashhad enjoys a steady rise in sunshine from January's 225 hours to June’s 399 hours, before gradually tapering off as the frosty air of winter closes in. The dance of daylight throughout the year paints a captivating picture of Mashhad's climate, where each month unfolds a unique story beneath the sun's embrace.

Monthly Sunshine Duration in Mashhad: December Highlighted

The December sunshine duration represents the total number of hours Mashhad experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec225h264h304h325h381h399h410h394h347h328h276h269h
Data source: Mashhad December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Mashhad During December

In Mashhad, Iran, the likelihood of sunny weather in December stands at a moderate 70%, maintaining a trend reminiscent of the preceding months. As a transition from the vibrant summer sun, which boasts 96% chances in June and August, the sunny frequency dips in the cooler months. November sees a decrease to 68%, while December offers a refreshing shift back up slightly. This pattern highlights the region's characteristic sunny disposition, particularly in the earlier months of the year, with winter bringing a blend of pleasant days and cooler temperatures. So if you're planning a visit in December, you can reasonably expect to enjoy a healthy dose of sunshine amidst the crisp winter air!

Percentage of Sunny Days in December in Mashhad

The chart illustrates the percentage of sunny days in Mashhad throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Mashhad experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec80%70%41%59%64%96%89%96%98%88%68%70%
Data source: Mashhad December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Mashhad in December

In Mashhad, Iran, December ushers in a return to shorter days, with daylight lasting just 9 hours. This trend reflects a gradual decrease in daylight hours from the long, sunlit days of summer, peaking at 14 hours in June, July, and August. As the year progresses, daylight starts to dwindle, beginning with warm spring days of 11 hours in March, to 10 hours in November, and finally settling at 9 hours as winter descends. This cyclical pattern highlights the region's significant seasonal shifts, inviting residents and visitors alike to embrace the cozy indoor atmosphere that December's shorter days bring.

Average Daylight Hours in Mashhad for December

The chart illustrates the variation in daylight duration in Mashhad throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 58m10h 51m11h 58m13h 7m14h 5m14h 34m14h 19m13h 28m12h 22m11h 13m10h 13m9h 43m
Data source: Mashhad daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Mashhad

As December rolls into Mashhad, the wind whispers a gentle tune, with an average speed of 2.3 m/s (5 mph). This month, like its predecessor November, maintains a calm breeze that encapsulates the essence of winter in the region. Throughout the year, Mashhad experiences a gradual increase in wind velocity, reaching a peak in the summer months of June and July at 3.2 m/s (7 mph) and 3.3 m/s (7 mph), respectively. However, as the seasons transition into the chill of winter, the winds mellow out, creating a serene atmosphere perfect for reflection and contemplation. The consistency in December's wind speed, paralleling the tranquility felt in earlier months, underscores a season of rest before the invigorating gusts of spring return.

Average December Wind Speed in Mashhad

The chart displays monthly wind speed patterns in Mashhad, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.42.62.42.53.23.33.02.72.32.22.3 m/s
Data source: Mashhad December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Mashhad Compares to Other Months

Weather in Mashhad varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Mashhad, focusing on differences in temperature, rainfall, humidity, and UV levels.

In December, temperatures in the area range from a minimum of -12°C (11°F) to a maximum of 19°C (66°F), with an average temperature of 3°C (38°F). The month experiences relatively low precipitation, totaling 14 mm (0.6 in) over three days, and humidity levels hover around 69%. In contrast, January sees slightly cooler conditions, with minimum temperatures dropping to -13°C (10°F) and an average of 1°C (35°F), while the maximum reaches 17°C (64°F). Precipitation increases to 21 mm (0.8 in), occurring over four days, and humidity is slightly lower at 66%. For more details on January's weather, you can check Mashhad weather in January.

December and February present similar average temperatures, both hovering around 3°C (38°F), but February tends to be slightly colder with a minimum temperature of -16°C (4°F) compared to December's -12°C (11°F). Despite sharing similar average highs of 19°C (66°F) in December and 21°C (71°F) in February, February experiences significantly more precipitation, with 52 mm (2.1 in) over 7 days, whereas December has only 14 mm (0.6 in) across 3 days. Humidity levels remain close, with December at 69% and February at 66%, indicating a slightly drier air in February. For a more detailed look at February's weather patterns, you can visit Mashhad weather in February.

December and March present striking contrasts in weather. In December, temperatures range from a chilly -12°C (11°F) at night to a mild 19°C (66°F) during the day, with an average of 3°C (38°F). The month sees minimal precipitation of 14 mm (0.6 in) over just three days, coupled with a humidity level of 69%. In contrast, March offers a more diverse temperature range, with nighttime lows of -6°C (22°F) and daytime highs soaring up to 30°C (86°F), averaging 8°C (47°F). This month experiences significantly more rainfall, totaling 73 mm (2.9 in) across 12 days, while humidity remains relatively stable at 66%. For more detailed insights, you can explore Mashhad weather in March.

The weather in December contrasts sharply with that of April. In December, temperatures range from a chilly minimum of -12°C (11°F) to a mild maximum of 19°C (66°F), with an average of 3°C (38°F). Humidity is relatively high at 69%, and precipitation is low, totaling just 14 mm (0.6 in) over 3 days. In contrast, April brings a more temperate climate, with minimum temperatures around -4°C (25°F) and a pleasant average of 13°C (56°F), peaking at a warm 30°C (87°F). The month sees increased precipitation at 71 mm (2.8 in) spread over 10 days, while humidity drops to 57%. For a more detailed overview of April weather, you can visit Mashhad weather in April.

December and May present stark contrasts in weather. December experiences frigid temperatures, with a minimum of -12°C and an average of just 3°C, while May boasts a much warmer atmosphere, featuring an average temperature of 19°C and highs reaching up to 36°C. Precipitation is also more frequent in May, occurring over 8 days and totaling 34 mm, compared to December's 14 mm over just 3 days. Additionally, December has a higher humidity level at 69%, while May's humidity drops to a more comfortable 47%. For more details, you can check Mashhad weather in May.

In December, the weather is notably colder, with temperatures ranging from a minimum of -12°C (11°F) to a maximum of 19°C (66°F). The average temperature hovers around 3°C (38°F), accompanied by higher humidity levels at 69%, and precipitation occurs on about three days, totaling 14 mm (0.6 in). In stark contrast, June brings much warmer conditions, featuring a minimum temperature of 12°C (53°F) and soaring to a maximum of 38°C (101°F), with an average of 25°C (76°F). Rainfall is minimal during this month, with only 6 mm (0.2 in) of precipitation over just one day and significantly lower humidity at 34%. For more detailed information about the June climate, you can visit Mashhad weather in June.

In December, the weather is notably colder with temperatures ranging from a minimum of -12°C (11°F) to a maximum of 19°C (66°F), averaging around 3°C (38°F). It also sees some precipitation, with 14 mm (0.6 in) falling over approximately three days, accompanied by a humidity level of 69%. In stark contrast, July offers much warmer conditions, with temperatures fluctuating between a minimum of 14°C (57°F) and a scorching maximum of 39°C (103°F), averaging 27°C (81°F). Precipitation is minimal in July, with only 1 mm (0.0 in) over zero days, resulting in a much lower humidity of 20%. This stark difference highlights the seasonal variability in the region's climate. For more details, check Mashhad weather in July.

December and August present stark contrasts in weather. December brings chilly temperatures, with nighttime lows plunging to -12°C (11°F) and an average of just 3°C (38°F). Precipitation is modest at 14 mm (0.6 in) over three days, accompanied by relatively high humidity at 69%. In sharp contrast, August showcases warm and balmy conditions, featuring minimum temperatures of 11°C (53°F) and soaring daytime highs reaching up to 38°C (100°F). Precipitation is virtually nonexistent in August, with only 1 mm recorded over zero days, and humidity drops to a low 19%. The difference in climate between these two months is striking, making December a month for bundling up, while August invites outdoor activities in the heat. For more specifics on August weather, you can refer to Mashhad weather in August.

In comparing December and September, the contrasts in weather are striking. December experiences much colder conditions, with average temperatures around 3°C (38°F) and a minimum of -12°C (11°F), while September boasts a significantly warmer average of 20°C (69°F) and can reach highs of 37°C (98°F). The humidity also varies greatly, with December holding a higher humidity level at 69%, compared to September's much drier 26%. Additionally, December sees more precipitation with 14 mm over three days, whereas September is notably dry, receiving just 1 mm of rain over zero days. For more details about September's climate, you can visit Mashhad weather in September.

When comparing December and October weather, December presents a colder overall climate, with average temperatures ranging from a chilly -12°C (11°F) at night to a milder 19°C (66°F) during the day. In contrast, October exhibits much warmer conditions, with temperatures fluctuating between a low of -1°C (30°F) and a high of 29°C (84°F). Precipitation is slightly higher in December, with 14 mm falling over three days compared to October's 13 mm over just two days. Additionally, December's humidity levels are notably higher at 69%, making the air feel more damp compared to October's more comfortable 44% humidity. For a closer look at October's climate specifics, you can visit Mashhad weather in October.

The weather in December is notably colder than in November, with minimum temperatures dropping to -12°C (11°F) compared to November's milder -8°C (18°F). While December averages around 3°C (38°F), November holds a higher average of 6°C (44°F). Maximum temperatures in December peak at 19°C (66°F), which is significantly lower than November's warm high of 27°C (81°F). Additionally, December experiences less precipitation at 14 mm (0.6 in) over 3 days, while November sees 25 mm (1.0 in) over 5 days. Humidity levels are slightly higher in December at 69%, compared to November's 67%. For a detailed look at November's weather, visit Mashhad weather in November.

Compare Mashhad's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Mashhad

As December unfolds in Mashhad, the city's weather takes on a distinct chill compared to the milder months that precede it. With a notable drop in temperatures, days are crisp and can see sharp contrasts between warm afternoons and frigid nights. While the skies may remain relatively dry, with minimal precipitation, the increase in humidity adds a layer of briskness to the air that can make it feel even colder. This unique winter atmosphere makes December a month of transition, setting the stage for the deep cold of January and February. Discover more about the patterns of the city's climate throughout the year by visiting Mashhad Climate.