May Weather in Lahijan, Iran

Last updated: August 21, 2025

In Lahijan, Iran, May brings a delightful blend of warmth and moderate humidity, with average temperatures hovering around 20°C (68°F). Daytime highs can reach up to 35°C (96°F), while the nights offer a refreshing coolness, dipping as low as 9°C (48°F). Rainfall is not uncommon, with 48 mm (1.9 in) occurring over about 9 days of the month, contributing to the lush greenery that the region is renowned for. With a humidity level of 65%, May in Lahijan is a month where the weather oscillates between bright sunshine and gentle showers, creating an inviting atmosphere for both locals and visitors alike.

May Temperature in Lahijan

In Lahijan during May, the weather begins to showcase the warmth of approaching summer. With a minimum temperature of 9°C (48°F) and an average of 20°C (68°F), the month offers a noticeable shift from the cooler spring months. The maximum temperature can reach up to 35°C (96°F), signaling the peak of pleasant days when the sun shines brightly over this scenic region. Compared to the earlier months, May brings a significant rise in temperatures, suggesting that outdoor activities and explorations become increasingly enjoyable. As flowers bloom and greenery flourishes, Lahijan embraces the vibrant spirit of late spring, making it an ideal time to experience its natural beauty.

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

The chart illustrates May temperature patterns in Lahijan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lahijan, 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).
JanFebMarAprMayJunJulAugSepOctNovDec464752586777807973645651
Data source: Temperature data for Lahijan generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Lahijan

In May, Lahijan experiences a noticeable dip in precipitation, with just 48 mm (1.9 in) of rainfall over 9 days. This decrease marks a significant contrast to the wetter months preceding it, such as April, which saw 108 mm (4.2 in) across 11 days. The trend indicates a transition towards drier conditions as summer approaches, setting the stage for the warmer months ahead. As the year progresses, the rainfall typically fluctuates, with July and August providing a brief resurgence of moisture before a gradual decline later in the year. This seasonal variation highlights Lahijan's unique climate, where the lush greenery thrives on the plentiful waters of earlier months while preparing for the drier days of summer.

May Precipitation Trends in Lahijan

The chart displays monthly precipitation patterns in Lahijan, 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 Lahijan, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec10414111210848319585118177180117
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Lahijan

In May, Lahijan, Iran, experiences a noteworthy transition in humidity, with levels stabilizing at 65%. This month marks a continuation of the slight decline from the wetter winter months, where humidity hovered around 75%. As spring unfolds, the air becomes less oppressive, paving the way for the drier summer months ahead, such as June and July, which both maintain a consistent 65% before dipping further to 61% in July. The gradual reduction in humidity from January through May indicates a shift towards the drier season, creating a more comfortable climate as residents prepare for the warm summer days.

May Average Humidity in Lahijan

This chart illustrates the average monthly humidity levels in Lahijan, 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 Lahijan is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%75%72%65%65%65%61%49%58%73%75%72%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Lahijan

In Lahijan, Iran, the UV Index experiences a significant upward trend as spring transitions into summer. Starting the year at a moderate level of 4 in January and February, the index sharply rises to 8 by March and April, signaling the onset of very high UV exposure with a burn time of just 15 minutes. However, by May, the UV Index reaches an alarming 11, categorizing it as extreme and reducing safe sun exposure to just 10 minutes. This peak marks a critical period, urging residents and visitors to take extra precautions against the sun’s harmful rays. As summer progresses into June and July, the index remains high at 10, demonstrating consistent risk. For current UV trends and protective measures, check the detailed report at Lahijan UV Index.

Maximum UV Index Levels in Lahijan for May

The chart shows the monthly maximum UV Index (UVI) for Lahijan 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 Lahijan typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec448811101098643
Data source: Lahijan 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 Lahijan

In May, Lahijan, Iran, basks in a radiant glow, receiving an impressive 378 hours of sunshine that marks the peak of its vibrant spring. This monthly total reflects a delightful upward trend, as sunshine hours gradually increase from 200 in January to a remarkable 392 in June. As the city transitions through the year, there is a noticeable brightness that not only enhances the natural beauty of the region but also invigorates the local culture and outdoor activities. Following May, the sun remains generous throughout the summer months, with hours slightly tapering off towards autumn, yet still maintaining a lively atmosphere, making Lahijan a sun-soaked destination worth exploring.

Monthly Sunshine Duration in Lahijan: May Highlighted

The May sunshine duration represents the total number of hours Lahijan 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.
JanFebMarAprMayJunJulAugSepOctNovDec200h242h297h315h378h392h383h366h323h287h230h242h
Data source: Lahijan May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Lahijan During May

May in Lahijan, Iran, presents a moderate chance of sunny weather, with approximately 47% likelihood of sunshine. This marks a slight dip compared to the preceding month of April, which enjoys a 51% chance. As spring transitions into summer, the patterns suggest a gradual increase in sunlight, with June promising a 63% chance of clear skies. Overall, while May's weather may not be the sunniest of the year, it still holds the potential for delightful, sunny days that hint at the approaching warmth of summer.

Percentage of Sunny Days in May in Lahijan

The chart illustrates the percentage of sunny days in Lahijan 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 Lahijan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec66%47%31%51%47%63%47%71%40%33%51%63%
Data source: Lahijan May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Lahijan in May

In Lahijan, Iran, the rhythm of daylight unfolds beautifully throughout the year, peaking in the summer months. Starting with just 9 hours in January, daylight gradually increases, reaching 14 hours by May. This transition not only marks the arrival of spring but also sets the stage for a bright and vibrant summer. Interestingly, the daylight remains stable at 14 hours from May through July, providing ample time for outdoor activities and exploration. As autumn approaches, the daylight gradually decreases, dipping back to 10 hours by November and eventually returning to a modest 9 hours in December. This natural ebb and flow of daylight creates a captivating tapestry that reflects the changing seasons in Lahijan.

Average Daylight Hours in Lahijan for May

The chart illustrates the variation in daylight duration in Lahijan throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 54m10h 48m11h 58m13h 9m14h 9m14h 39m14h 24m13h 31m12h 23m11h 11m10h 9m9h 38m
Data source: Lahijan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Lahijan

In May, Lahijan experiences a gentle breeze with an average wind speed of 2.1 m/s (5 mph), consistent with the spring's transitional climate. As spring gives way to summer, the winds remain fairly stable, mirroring the patterns seen earlier in the year. Notably, April sees a slight dip to 1.9 m/s (4 mph), but the wind picks up again, highlighting the area's relatively calm and pleasant weather. This trend of moderate wind speeds continues through July and returns in September, fostering an inviting atmosphere perfect for outdoor activities. Overall, Lahijan's wind during May plays a vital role in creating a serene environment, ideal for enjoying the beauty of this lush region.

Average May Wind Speed in Lahijan

The chart displays monthly wind speed patterns in Lahijan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.12.22.21.92.1 m/s2.02.22.02.22.02.02.2
Data source: Lahijan May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Lahijan Compares to Other Months

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

In May, temperatures in the region range from a minimum of 9°C (48°F) to a balmy maximum of 35°C (96°F), with an average temperature of 20°C (68°F). The month sees relatively low precipitation at 48 mm (1.9 in) over 9 days, coupled with a humidity level around 65%. In contrast, January features much colder weather, with temperatures dipping as low as -7°C (19°F) and averaging around 8°C (47°F), peaking at 22°C (73°F). This month experiences significantly higher precipitation, totaling 103 mm (4.1 in) across 9 days, along with increased humidity at 75%. For more detailed insights on January weather, visit Lahijan weather in January.

May and February showcase striking contrasts in weather patterns. In February, temperatures start at a chilly -7°C (20°F), peaking at a mild 26°C (80°F) with an average of 8°C (47°F), accompanied by significant precipitation of 141 mm (5.6 in) over 12 days and higher humidity at 75%. In comparison, May features much warmer temperatures, ranging from a minimum of 9°C (48°F) to a maximum of 35°C (96°F), with a more moderate average of 20°C (68°F). While May experiences less rainfall at 48 mm (1.9 in) over 9 days, its humidity levels are slightly lower at 65%. For more details on February's climate, check out Lahijan weather in February.

In comparing the weather between May and March, it's clear that May generally offers warmer temperatures, with a minimum of 9°C (48°F) and an average of 20°C (68°F), peaking at 35°C (96°F). In contrast, March experiences cooler temperatures, with minimums dropping to 0°C (32°F) and an average of only 11°C (52°F). Additionally, May sees significantly less precipitation at 48 mm (1.9 in) over 9 days, compared to March's 112 mm (4.4 in) spanning 14 days. Humidity levels in March are somewhat higher at 72%, while May maintains a more comfortable humidity level of 65%. For a closer look at March weather details, you can visit Lahijan weather in March.

Comparing the weather in April and May reveals a significant transition as spring progresses towards summer. In April, temperatures range from a chilly minimum of 1°C (35°F) to a comfortable maximum of 30°C (86°F), with an average of 14°C (58°F). The month experiences more rainfall, totaling 108 mm (4.2 in) over 11 days, resulting in a vibrant spring atmosphere. In contrast, May sees a noticeable increase in temperature, with a minimum of 9°C (48°F), an average of 20°C (68°F), and a peak of 35°C (96°F). Although May is drier with just 48 mm (1.9 in) of precipitation spread over 9 days, the consistency in humidity remains at 65%. For a more detailed look at April's weather, you can check out Lahijan weather in April.

May and June exhibit notable differences in weather patterns. May features a wider temperature range, with minimums dipping to 9°C (48°F) and averages around 20°C (68°F), while June enjoys warmer conditions with a minimum temperature of 15°C (59°F) and an average of 25°C (77°F). Both months share a maximum temperature peak of 35°C (95°F), but June experiences less precipitation, totaling 31 mm (1.2 in) over 6 days, compared to May's 48 mm (1.9 in) over 9 days. Humidity remains consistent at 65% in both months. For more information, check out Lahijan weather in June.

May and July present notable differences in weather patterns. In May, temperatures range from a cool minimum of 9°C (48°F) to a warm average of 20°C (68°F), with a maximum that can reach 35°C (96°F). The month sees about 48 mm (1.9 in) of rainfall over 9 days, paired with a humidity level of 65%. In contrast, July experiences higher temperatures, with a minimum of 16°C (62°F) and an average of 27°C (81°F), peaking at 37°C (99°F). Precipitation increases to 95 mm (3.7 in) over 12 days, while humidity slightly decreases to 61%. For more specifics about weather conditions, you can visit Lahijan weather in July.

May and August present distinct contrasts in weather patterns. In May, temperatures range from a cool 9°C (48°F) at night to a warm 35°C (96°F) during the day, with an average of 20°C (68°F). The month receives 48 mm (1.9 in) of precipitation over approximately 9 days, accompanied by higher humidity levels averaging 65%. In contrast, August experiences milder nighttime temperatures at a minimum of 14°C (58°F) and slightly higher daytime averages of 26°C (79°F), peaking at 36°C (98°F). Rainfall increases to 85 mm (3.3 in) across 11 days, but the humidity drops to a more comfortable 49%. For more details on the weather specifics, you can check Lahijan weather in August.

May and September offer distinct weather experiences. In May, temperatures range from a minimum of 9°C (48°F) to a maximum of 35°C (96°F), with an average temperature of 20°C (68°F). The month sees about 48 mm (1.9 in) of precipitation over approximately 9 days, accompanied by a humidity level of 65%. Conversely, September features warmer conditions, with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 36°C (97°F), boasting an average of 23°C (74°F). However, it experiences more rainfall, totaling 118 mm (4.6 in) over 15 days, and lower humidity at 58%. As such, September tends to be wetter yet slightly less humid than May. For a deeper look at the weather in September, check out Lahijan weather in September.

May and October present contrasting weather patterns as spring transitions into autumn. In May, temperatures are generally warmer, with averages around 20°C (68°F) and maximums reaching up to 35°C (96°F). The month also experiences relatively low precipitation, totaling 48 mm (1.9 in) over approximately nine days. In contrast, October sees cooler temperatures with an average around 18°C (65°F), maximums peaking at 33°C (91°F) but with a notable increase in rainfall to 177 mm (7.0 in) spread over about 15 days. Additionally, October tends to be more humid, averaging around 73%, compared to May's 65%. For a detailed look at October weather specifics, visit Lahijan weather in October.

May and November present contrasting weather patterns. In May, temperatures range from a mild 9°C (48°F) to a warm 35°C (96°F), with an average of 20°C (68°F). The month experiences relatively low precipitation at 48 mm (1.9 in) over 9 days, and humidity stands at 65%. In contrast, November sees cooler temperatures, with a minimum of 3°C (37°F) and a maximum of 29°C (84°F), averaging around 13°C (56°F). It is a much wetter month with 180 mm (7.1 in) of precipitation spread over 14 days, and humidity levels rise to 75%. For more details on November weather in a specific area, you can check Lahijan weather in November.

May and December present stark contrasts in weather patterns. In May, temperatures range from a mild 9°C (48°F) at night to a warm 35°C (96°F) during the day, with an average temperature of 20°C (68°F). The month sees relatively low precipitation of 48 mm (1.9 in) over about 9 days, accompanied by a humidity level of 65%. In contrast, December experiences much cooler temperatures, with minimums dipping to -4°C (25°F) and a maximum of 27°C (81°F), averaging at 10°C (51°F). The rainfall is significantly higher at 117 mm (4.6 in) across 10 days, coupled with increased humidity at 72%. For more details about December weather, you can check this link: Lahijan weather in December.

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Conclusion: What to Expect From May Weather in Lahijan

As May rolls into Lahijan, the weather transforms significantly, heralding the start of warmer days compared to the cooler, crisp months that preceded it. With temperatures averaging a pleasant 20°C (68°F) and peaking at a maximum of 35°C (96°F), residents and visitors are welcomed by the embrace of spring warmth. Despite these inviting conditions, May is also marked by a modest 48 mm (1.9 in) of precipitation, falling over approximately 9 days, which adds a refreshing touch to the lush landscape. The humidity level at 65% provides a slight stickiness in the air, distinctly setting May apart from the drier months that follow. For a deeper dive into how Lahijan's climate shapes its seasons, explore Lahijan Climate.