May Weather in Hamadan, Iran

Last updated: August 21, 2025

May in Hamadan, Iran, brings a delightful mix of warm temperatures and refreshing breezes. With a maximum temperature reaching up to 30°C (87°F) and an average of 16°C (61°F), the weather is perfect for outdoor activities. However, the month also sees a minimum temperature of 5°C (41°F), reminding residents of the lingering chill as spring transitions into summer. Rainfall is a significant feature, with precipitation totaling 59 mm (2.3 in) over 12 days, creating lush surroundings and vibrant landscapes. The humidity level, around 62%, adds to the refreshing feel, making May a dynamic and inviting time to explore Hamadan's rich culture and natural beauty.

May Temperature in Hamadan

As spring unfolds in Hamadan, Iran, May heralds a delightful transition into warmer weather. Temperatures in this month typically range from a minimum of 5°C (41°F) to a maximum of 30°C (87°F), with an average of 16°C (61°F). This marks a significant uptick from the chilly days of winter, where January and February cling to their frosty grips with lows around -19°C (-1°F) and averages barely crossing 1°C (34°F). The pleasant warmth seen in May reflects a broader trend, as the region gradually shifts from the chilly embrace of earlier months to the rising heat of summer, with June set to bring even higher averages. It's an ideal time for visitors to experience Hamadan's vibrant culture and breathtaking landscapes, all while enjoying the welcoming temperatures.

May Weather in Hamadan: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Hamadan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hamadan, May 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).
JanFebMarAprMayJunJulAugSepOctNovDec313343526174817971574336
Data source: Temperature data for Hamadan 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.

May Precipitation in Hamadan

In May, Hamadan experiences a moderate wave of precipitation, recording 59 mm (2.3 in) of rain over 12 days. This notable amount marks a decline from the heavier rainfall seen in the preceding months of April and March, which boast totals of 98 mm (3.9 in) and 86 mm (3.4 in), respectively. The gradual decrease in precipitation as spring transitions into summer suggests a shift in Hamadan's climatic patterns, as the region moves toward dry season conditions, with June seeing a significant drop to only 5 mm (0.2 in) over just 2 days. This trend highlights a typical Mediterranean climate's cyclical nature, balancing wet spring weather with the impending dry months.

May Precipitation Trends in Hamadan

The chart displays monthly precipitation patterns in Hamadan, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Hamadan, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec45768698595221335755
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Hamadan

May marks a notable transition in Hamadan, Iran, as the city's humidity decreases to 62%, continuing the downward trend established since April's 66%. This decline is part of a broader pattern observed throughout the warmer months, as humidity levels steadily drop from the higher levels seen in winter. In stark contrast to January's peak of 76%, the atmosphere feels lighter and more comfortable as the region gears up for the summer heat. As temperatures rise and humidity falls, residents of Hamadan can enjoy clearer skies and milder evenings, making May an ideal time for outdoor activities.

May Average Humidity in Hamadan

This chart illustrates the average monthly humidity levels in Hamadan, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Hamadan is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%72%73%66%62%54%46%36%40%59%70%75%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Hamadan

As May arrives in Hamadan, Iran, residents and visitors alike should be aware of the dramatic rise in the UV Index, soaring to 13, categorized as extreme. This marked increase from April's already high reading of 10 significantly shortens the burn time to only 10 minutes. Following the trend observed in previous months, where the UV Index escalates sharply from March through May, individuals must take extra precautions against skin damage. With intense sun exposure persisting through June, maintaining vigilance with sunscreen and protective clothing becomes essential. For further insights on UV levels throughout the year, visit Hamadan UV Index.

Maximum UV Index Levels in Hamadan for May

The chart shows the monthly maximum UV Index (UVI) for Hamadan in May, 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 May, the maximum UV index in Hamadan typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec569101313121110854
Data source: Hamadan May 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.

May Sunshine in Hamadan

In Hamadan, Iran, the arrival of May brings with it an invigorating surge of sunshine, boasting 389 hours of sunlight that unfurls the vibrant colors of spring. This month stands out as a dazzling peak in a gradual upward trend that begins in January with 230 hours and consistently climbs to its zenith by June, where the sun shines for an impressive 405 hours. As spring transitions into summer, the sunlight in Hamadan remains plentiful, with July and August trailing slightly behind, offering 398 and 384 hours respectively. The rhythmic ebb and flow of sunshine throughout the year not only enhances the beauty of this historic city but also invigorates its residents, making May a truly radiant time to bask in the warmth of Hamadan.

Monthly Sunshine Duration in Hamadan: May Highlighted

The May sunshine duration represents the total number of hours Hamadan experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec230h266h321h346h389h405h398h384h351h324h271h271h
Data source: Hamadan May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hamadan During May

In Hamadan, Iran, the likelihood of sunny weather experiences notable fluctuations throughout the year. With a 66% chance of sunshine in May, the month offers a pleasant transition into the warmer season, though not quite as certain as the peak months of September and June, which boast probabilities of 97% and 91%, respectively. As spring progresses, sunny days become more frequent, contrasting sharply with the more overcast tendencies seen in the late fall and winter months. While April hovers slightly below May at 61%, it’s clear that as the year unfolds, the sun increasingly dominates the skies, promising delightful outdoor opportunities as summer approaches.

Percentage of Sunny Days in May in Hamadan

The chart illustrates the percentage of sunny days in Hamadan throughout the year, with May 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 Hamadan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec74%64%59%61%66%91%85%79%97%85%52%56%
Data source: Hamadan May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hamadan in May

In Hamadan, Iran, the rhythm of daylight unfolds throughout the year, showcasing a distinct seasonal pattern. January and February greet the new year with a steady 10 hours of sunlight, gradually blooming into 11 hours by March. As spring approaches, the days lengthen notably, with April and May basking in 13 hours of daylight, setting the stage for the sunniest months. The peak arrives in June and July, when daylight reaches its zenith at 14 hours, inviting longer outdoor adventures. However, as summer wanes, daylight begins to retreat, gently declining to 12 hours in September and further diminishing through the cooling months until it settles back at 9 hours by December. This captivating cycle of light not only marks the passage of time but also influences the lifestyle and activities of the people in this historic city.

Average Daylight Hours in Hamadan for May

The chart illustrates the variation in daylight duration in Hamadan throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 6m10h 55m11h 58m13h 4m13h 58m14h 26m14h 12m13h 23m12h 21m11h 16m10h 19m9h 51m
Data source: Hamadan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Hamadan

In Hamadan, Iran, the wind patterns during May reflect a transitional phase in the region's climate, maintaining an average speed of 2.6 m/s (6 mph). This month sees a slight decrease from the higher winds of March, which peak at 3.1 m/s (7 mph), yet remains steady compared to both preceding and following months. As spring dances into summer, Hamadan experiences relatively consistent and gentle breezes, indicating a shift towards warmer temperatures while still enjoying the refreshing feel of the wind. Notably, May’s wind speed is in line with the calmness of April and the steady gusts of June, suggesting a temperate atmosphere ideal for outdoor activities and exploration. Overall, the data highlights a pattern where the winds begin to stabilize as summer approaches, offering a pleasant and inviting climate for residents and visitors alike.

Average May Wind Speed in Hamadan

The chart displays monthly wind speed patterns in Hamadan, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.22.23.12.72.6 m/s2.82.82.62.62.41.82.1
Data source: Hamadan May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Hamadan Compares to Other Months

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

May and January present starkly contrasting weather patterns. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 30°C (87°F), with an average of around 16°C (61°F). The month experiences moderate precipitation of 59 mm (2.3 in) over 12 days, accompanied by a humidity level of 62%, creating a pleasant spring atmosphere. In contrast, January brings much colder conditions, with temperatures ranging from -16°C (4°F) to a maximum of 14°C (57°F) and an average of -1°C (31°F). It also sees slightly less precipitation at 45 mm (1.8 in) over 8 days, but higher humidity at 76%, contributing to the chill of winter. For more details on January weather, visit Hamadan weather in January.

The weather in May and February showcases a stark contrast in temperatures and overall climate conditions. May enjoys a much milder range, with average temperatures reaching a pleasant 16°C (61°F), peaking at highs of 30°C (87°F), while February's averages linger around a chilly 1°C (34°F), with highs only reaching 15°C (59°F) and lows dropping to a frigid -19°C (-1°F). Although February experiences slightly higher precipitation at 76 mm (3.0 in) over 9 days, May has a more favorable humidity level at 62%, compared to February’s 72%. For a detailed look at February's weather in Hamadan, follow this link: Hamadan weather in February.

In comparing the weather of May and March, it's clear that May generally presents a warmer and more pleasant climate. With average temperatures reaching 16°C (61°F) compared to March's average of 6°C (43°F), May offers a significant increase in warmth. While March experiences colder nights, with a minimum temperature of -7°C (19°F), May's temperatures remain mild, only dipping to a minimum of 5°C (41°F). Additionally, precipitation in May is slightly lower, with 59 mm (2.3 in) over 12 days, while March sees a higher amount of 86 mm (3.4 in) across 13 days. The humidity in March is also higher, at 73%, compared to May's 62%, contributing to March’s cooler and wetter feel. For more specific weather details in Hamadan during March, you can explore this link: Hamadan weather in March.

In comparing the weather of May and April, it's evident that May brings a notable increase in temperature, with averages reaching 16°C (61°F) compared to April's 11°C (52°F). The maximum temperatures in May can soar up to 30°C (87°F), while April peaks at 26°C (79°F). However, April experiences more precipitation, recording 98 mm (3.9 in) over 15 days, compared to May's 59 mm (2.3 in) across 12 days. Additionally, humidity levels are slightly higher in April at 66%, compared to May's 62%. For further details, you can explore Hamadan weather in April.

May and June showcase a noticeable shift in weather conditions. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 30°C (87°F), with an average of 16°C (61°F). The month experiences a fair amount of precipitation, totaling 59 mm (2.3 in) over approximately 12 days, and maintains a relative humidity of 62%. In contrast, June sees a warmer climate, with temperatures ranging from a minimum of 9°C (48°F) to a scorching maximum of 37°C (99°F), with an average of 23°C (74°F). This month is much drier, with only 5 mm (0.2 in) of precipitation over just 2 days, and a slightly lower humidity level of 54%. For more detailed insights, check out Hamadan weather in June.

May and July exhibit strikingly different weather patterns. In May, temperatures range from a chilly 5°C (41°F) at night to a warm 30°C (87°F) during the day, with an average temperature of 16°C (61°F). The month also sees considerable precipitation, totaling 59 mm (2.3 in) over 12 days, contributing to a humidity level of 62%. In contrast, July offers a much warmer climate, with minimum temperatures of 14°C (58°F), maximum highs reaching up to 38°C (100°F), and an average of 27°C (81°F). Notably, July experiences significantly less rain, with only 2 mm (0.1 in) of precipitation over the entire month and no rainy days, resulting in a lower humidity of 46%. For more detailed information, you can check Hamadan weather in July.

May and August present contrasting weather conditions. In May, temperatures range from a cool minimum of 5°C (41°F) to a warm maximum of 30°C (87°F), with an average of 16°C (61°F). This month also sees about 59 mm (2.3 in) of precipitation spread over 12 days, accompanied by a humidity level of 62%. In contrast, August is significantly warmer, with temperatures fluctuating from a minimum of 13°C (55°F) to a hot maximum of 37°C (99°F) and an average of 26°C (79°F). August is notably dry, receiving only 2 mm (0.1 in) of rain over 0 days, and features a lower humidity level of 36%. For more details on August weather, you can visit Hamadan weather in August.

In comparing the weather between May and September, notable differences emerge. May experiences a temperature range that starts at a chilly 5°C (41°F) and peaks at a warm 30°C (87°F), averaging 16°C (61°F) overall. This month also sees considerable precipitation, with 59 mm (2.3 in) falling over 12 days, resulting in an average humidity of 62%. In contrast, September boasts milder conditions with a minimum temperature of 8°C (47°F) and a maximum that reaches as high as 35°C (95°F), averaging 22°C (72°F). Notably, September is significantly drier, receiving only 1 mm (0.0 in) of precipitation across the month, with a remarkable absence of rainy days and a lower humidity level of 40%. For more details, you can check Hamadan weather in September.

May and October showcase distinct weather patterns, highlighting the transition between spring and autumn. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 30°C (87°F), with an average of 16°C (61°F) and a higher humidity level of 62%. This month also experiences more rainfall, totaling 59 mm (2.3 in) over approximately 12 days. In contrast, October sees cooler temperatures, with a minimum of 2°C (36°F) and a maximum of 28°C (83°F), averaging 14°C (58°F). Rainfall decreases significantly to 32 mm (1.3 in) spread over just 6 days, and humidity drops slightly to 59%. For more detailed insights on October weather, visit Hamadan weather in October.

May and November showcase contrasting weather patterns. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 30°C (87°F), with an average of 16°C (61°F). The month experiences moderate precipitation of 59 mm (2.3 in) over approximately 12 days, accompanied by a humidity level of 62%. In contrast, November brings a chillier climate, with temperatures ranging from a minimum of -6°C (22°F) to a maximum of 22°C (72°F) and an average of just 6°C (44°F). Although November sees slightly less precipitation at 57 mm (2.3 in) over around 10 days, the humidity rises to 70%. For a detailed look at the weather in November, you can check Hamadan weather in November.

May and December showcase strikingly different weather patterns. In May, temperatures can range from a minimum of 5°C (41°F) to a maximum of 30°C (87°F), with an average of 16°C (61°F). The month experiences about 59 mm (2.3 in) of precipitation over roughly 12 days, accompanied by a moderate humidity of 62%. In contrast, December brings much colder conditions, with temperatures dropping to a minimum of -12°C (12°F) and reaching a maximum of 15°C (59°F), resulting in a chillier average of just 2°C (36°F). Precipitation in December is relatively similar, at 55 mm (2.2 in), but occurs over fewer days—about 8—along with increased humidity at 75%. For more detailed insights into the colder months, you can check Hamadan weather in December.

Compare Hamadan's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Hamadan

As May unfolds in Hamadan, the weather brings a delightful transition that differs significantly from the chill of earlier months. With warm temperatures reaching a comfortable 30°C (87°F) at their peak, this month signifies the onset of spring's warmth, while the average remains a pleasant 16°C (61°F). However, it's not all sunshine; a notable 59 mm (2.3 in) of rain falls over 12 days, adding a refreshing touch to the air with a humidity level of 62%. This blend of warmth and moisture creates a vibrant atmosphere, making May an inviting time to explore the charm of Hamadan. For a more detailed understanding of the region's climate, visit Hamadan Climate.