Last updated: August 21, 2025
In Shiraz, Iran, May offers a delightful climate, where temperatures can soar to a maximum of 36°C (98°F) while maintaining a comfortable average of 21°C (71°F). The month is typically dry, with an average precipitation of only 16 mm (0.6 in) spread over a mere 3 days, creating a refreshing atmosphere with low humidity levels at 30%. This combination of warmth and minimal rainfall makes May a splendid time to explore the beauty and culture of Shiraz, inviting both locals and visitors to relish the outdoor charm of this historic city.
In Shiraz, Iran, May marks a transition into the warmth of summer, characterized by balmy temperatures that invite outdoor exploration. The month begins with a minimum temperature of 7°C (45°F), steadily rising to an average of 21°C (71°F) and peaking at a sizzling 36°C (98°F). This upward trend from the cooler spring months is evident as May showcases a striking increase, with highs nearly reaching the summer extremes seen in June and July. The pleasant warmth, coupled with the blooming landscapes, makes May an ideal time for visitors to experience the rich culture and stunning sights of Shiraz before the peak summer heat settles in.
In May, Shiraz experiences a notable decline in precipitation, with only 16 mm (0.6 in) of rain falling over just three days. This drop marks a significant contrast to the wetter months preceding it, such as March, which sees 91 mm (3.6 in) over seven days. The reduced rainfall in May signals the transition towards summer, as the region prepares for the dry heat of June and beyond, where the skies remain largely clear, and rainfall becomes a rare occurrence. This trend reflects Shiraz's characteristic Mediterranean climate, where spring showers give way to arid conditions, emphasizing the region's dramatic seasonal shifts.
As spring transitions into summer in Shiraz, Iran, the month of May brings a noticeable drop in humidity, registering at a comfortable 30%. This decline follows a pattern established over the previous months, where humidity levels have steadily decreased from 46% in January to 34% in April. As temperatures rise, the dry air of early summer becomes more pronounced, with June and July experiencing even lower humidity levels, dipping to around 14% and 10% respectively. This trend highlights Shiraz's shift towards a distinctively arid climate, making May an opportune time for outdoor activities before the peak dryness and heat take hold in the months to follow.
In Shiraz, Iran, May ushers in a peak UV Index of 14, categorizing it as extreme and shortening burn time to just 10 minutes. This trend reflects an escalating intensity that started in January with a UV Index of 6 (high exposure), ramping up dramatically through the months. The progression leads to March and April, both marked by an Index of 12. As summer approaches in June and July, the UV levels remain high at 13, gradually tapering off to 12 in August and 11 by September. As you prepare for outdoor activities, it’s crucial to be vigilant in May, where the sun's rays can be particularly harsh. For more details about Shiraz’s UV levels throughout the year, check out Shiraz UV Index.
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May in Shiraz, Iran, shines brightly with 379 hours of glorious sunshine, marking it as one of the sunniest months of the year. As spring unfolds, sunshine hours steadily increase from January's 243 hours, reaching a delightful peak in June with 388 hours. This trend highlights the region's transition from the cooler months, inviting residents and visitors alike to bask in the warm rays. While the summer months continue this sun-drenched pattern, the days gradually shorten as autumn approaches, with September's 346 hours and October's 332 hours still offering plenty of daylight. Thus, May serves as a radiant reminder of Shiraz's climatic charm, setting the stage for the vibrant energy of the Iranian summer.
In Shiraz, Iran, the likelihood of sunny weather sees a promising peak in May, with a remarkable 82% chance of sunshine gracing the city. This month stands out as a transition from the milder early spring months, where sunshine probabilities hover around 61% in April, to the blazing summer that follows, boasting rates as high as 95% in June. The trend indicates an upward trajectory in sunshine as the year progresses, with May serving as a delightful bridge, offering residents and visitors alike a taste of the summer warmth ahead. With such a high likelihood of sunny days, May is an ideal time to explore the rich cultural heritage and breathtaking landscapes of Shiraz under a radiant sun.
In Shiraz, Iran, the daylight duration experiences a gradual increase from 10 hours in January to 13 hours in May, signaling the onset of spring's vibrant energy. This upward trend continues into June, peaking at an impressive 14 hours of sunlight, ideal for enjoying outdoor activities and the region's stunning landscapes. As summer wanes, daylight begins to taper off—July and August see a return to 13 hours, while September and October witness a gentle decline back to 11 hours. By the time winter approaches, daylight stabilizes at 10 hours in both November and December, creating a rhythmic cycle that marks the changing seasons in this culturally rich city. Overall, Shiraz boasts a noteworthy variation in daylight, enhancing the allure of its beautiful spring and summer months while transitioning gracefully into the cooler seasons.
As May unfolds in Shiraz, Iran, the gentle breeze carries a refreshing quality, with an average wind speed of 1.9 m/s (4 mph). This slight increase from the preceding months, paired with the consistent wind patterns observed in the earlier spring months, hints at a gradual warming trend. Although wind speeds remain relatively mild throughout the year, May stands out for its subtle uptick, setting the stage for the summer heat. As the city transitions from the spring's pleasantness to the warmer months ahead, the steady wind offers a welcome respite, inviting residents and visitors alike to enjoy the beautiful outdoors in this enchanting region.
Weather in Shiraz varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Shiraz, focusing on differences in temperature, rainfall, humidity, and UV levels.
In May, the weather is characterized by warm temperatures, with a range from a cool 7°C (45°F) to a high of 36°C (98°F), and an average of 21°C (71°F). The month sees minimal precipitation, averaging just 16 mm (0.6 in) over about three wet days, along with relatively low humidity at 30%. In contrast, January experiences much colder conditions, where temperatures can plummet to a minimum of -15°C (5°F), with an average of 5°C (41°F) and a maximum reaching 21°C (70°F). This month also receives more precipitation, totaling 39 mm (1.5 in) over approximately four days, and higher humidity levels at 46%. For more detailed insights, check out Shiraz weather in January.
May and February present contrasting weather patterns in terms of temperature and precipitation. In May, temperatures range from a chilly 7°C (45°F) at their lowest to a scorching 36°C (98°F) at their peak, averaging around 21°C (71°F). The month experiences minimal rainfall with only 16 mm (0.6 in) over about three days and relatively low humidity at 30%. In stark contrast, February boasts much colder temperatures, with a minimum of -7°C (19°F) and a maximum of 21°C (71°F), and an average of just 7°C (45°F). This month also sees significantly higher precipitation, totaling 80 mm (3.1 in) over approximately six days, along with a humidity level of 35%. For more detailed insights, you can check Shiraz weather in February.
In comparing the weather of May and March, it's clear that May offers significantly warmer temperatures, with an average of 21°C (71°F) compared to March's cooler average of 11°C (52°F). May experiences minimal precipitation, only 16 mm (0.6 in) over just 3 days, while March is much wetter, receiving 91 mm (3.6 in) over 7 days, which contributes to a higher humidity level of 36%. The transition from the chill of March, where temperatures can drop to a minimum of -4°C (24°F), to the warmth of May, peaking at 36°C (98°F), highlights the dramatic shift in weather as spring progresses. For a detailed look at March weather conditions, you can visit Shiraz weather in March.
In comparing the weather between April and May, May offers significantly warmer temperatures, with minimums of 7°C (45°F) and maximums reaching up to 36°C (98°F), while April's temperatures range from a minimum of 3°C (38°F) to a maximum of 29°C (84°F). Additionally, May experiences much less precipitation, totaling only 16 mm (0.6 in) over just 3 days, compared to April's 42 mm (1.7 in) across 8 days of rain. Humidity levels drop slightly in May to 30%, compared to April's 34%. For more detailed information on April weather, you can check Shiraz weather in April.
Comparing the weather in May and June reveals a notable transition in temperatures and conditions. In May, temperatures range from a minimum of 7°C (45°F) to a maximum of 36°C (98°F), with an average of 21°C (71°F) and some precipitation, totaling 16 mm (0.6 in) over three days. The humidity level is relatively moderate at 30%. In contrast, June experiences warmer temperatures overall, with a minimum of 14°C (57°F) and a maximum reaching 39°C (102°F), averaging 28°C (82°F). Remarkably, June sees no precipitation and only 14% humidity, indicating a much drier atmosphere. For more specific details about June, you can refer to Shiraz weather in June.
In May, temperatures in Shiraz range significantly, with a minimum of 7°C (45°F) and a maximum of 36°C (98°F), while the average temperature is a comfortable 21°C (71°F). The month experiences relatively low humidity at 30% and receives about 16 mm (0.6 in) of precipitation over three days. In contrast, July sees much warmer weather, with a minimum temperature of 19°C (66°F) and a maximum of 39°C (103°F), averaging around 29°C (84°F). This month boasts even lower humidity at 10% and minimal precipitation, with only 3 mm (0.1 in) and no rainy days. For a more detailed look at the summer weather, you can visit Shiraz weather in July.
May and August showcase a notable contrast in weather patterns. In May, temperatures range from a cooler minimum of 7°C (45°F) to a warm maximum of 36°C (98°F), with an average of 21°C (71°F). This month experiences some precipitation, totaling 16 mm (0.6 in) over about 3 days, paired with a moderate humidity of 30%. In contrast, August offers much warmer conditions, with temperatures spanning from 17°C (62°F) at night to a scorching 39°C (103°F) during the day, and an average of 28°C (83°F). Notably, August boasts dry weather, with no recorded precipitation and a lower humidity of just 12%. For more details on August weather, visit Shiraz weather in August.
In May, temperatures range from a cool 7°C (45°F) at night to a warm 36°C (98°F) during the day, with an average of 21°C (71°F). This month experiences a moderate level of humidity at 30% and receives about 16 mm (0.6 in) of precipitation over three days. In contrast, September offers a milder climate with temperatures starting at 14°C (58°F) and peaking at 36°C (96°F), averaging around 25°C (77°F). Notably, September is much drier, with no recorded precipitation, a rarity that contributes to its low humidity of only 16%. For more details on the weather trends, you can check Shiraz weather in September.
May and October offer contrasting weather experiences. In May, temperatures range from a minimum of 7°C (45°F) to a maximum of 36°C (98°F), with a warm average of 21°C (71°F). The month sees about 16 mm (0.6 in) of precipitation over three days, and humidity levels are relatively low at 30%. In comparison, October presents cooler temperatures, with a minimum of 5°C (42°F) and a maximum of 32°C (89°F), averaging around 19°C (66°F). This month is notably drier, experiencing just 7 mm (0.3 in) of rain across a single day and slightly higher humidity at 33%. For those interested in the specifics of October's climate, more details can be found here: Shiraz weather in October.
May and November present contrasting weather patterns. In May, temperatures range from a pleasant 7°C (45°F) to a warm 36°C (98°F), with an average of 21°C (71°F). The month sees minimal precipitation, averaging just 16 mm (0.6 in) over about 3 days, and the humidity remains relatively low at 30%. In contrast, November brings cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 25°C (78°F), averaging 11°C (52°F). This month experiences more rainfall, with 51 mm (2.0 in) spread across 5 days, and humidity levels rise to 51%. For more detailed information, you can check out Shiraz weather in November.
May and December present strikingly different weather patterns. In May, temperatures range from a mild 7°C (45°F) at night to highs of 36°C (98°F) during the day, with an average temperature of 21°C (71°F). The month boasts relatively low precipitation at 16 mm (0.6 in) over just 3 days, accompanied by a low humidity of 30%. In contrast, December experiences much cooler weather, with nighttime lows dropping to -3°C (28°F) and daytime highs capping at 21°C (69°F), resulting in an average temperature of 7°C (45°F). Precipitation is also higher in December at 42 mm (1.6 in) spread over 4 days, along with increased humidity of 49%. For more details on December weather, check out Shiraz weather in December.
As May unfolds in Shiraz, the weather marks a delightful transition, showcasing warmer days that contrast sharply with the cooler temperatures of earlier months. With an average high of 36°C (98°F), the heat is tempered by relatively low humidity levels around 30%, making for comfortable evenings. Unlike the rainy season earlier in the year, May sees limited precipitation, with just a few days of light showers, allowing ample sunshine to dominate the landscape. This balance of warmth and dry weather sets the stage for outdoor activities and exploration, making it an ideal time to experience the rich culture of Shiraz. For more insights on what to expect throughout the year, visit Shiraz Climate.