Last updated: August 21, 2025
In May, Lucknow, India, experiences a warm and dynamic climate characterized by a maximum temperature soaring up to 45°C (113°F) and an average of 32°C (91°F). The nights offer a reprieve with temperatures dropping to a minimum of 21°C (70°F). Despite the heat, the city sees light rainfall, totaling 32 mm (1.2 in) across about 5 days, while humidity levels hover around 37%, adding a touch of tropical comfort. This blend of warmth and occasional showers sets the stage for a vibrant and bustling atmosphere, inviting exploration and adventure in one of India's historical gems.
In May, Lucknow experiences a notable rise in temperatures, with a minimum of 21°C (70°F) and a scorching maximum reaching up to 45°C (113°F). This month marks a significant transition into the peak of summer, as the average temperature settles at 32°C (91°F), making the city one of the hottest during this period. As days grow increasingly warm, residents and visitors alike brace for the sultry conditions that precede the arrival of the monsoon in June. Compared to the cooler earlier months, May's sizzling heat underscores the dramatic shift in Lucknow's climate, highlighting the intensity of its summer season.
In May, Lucknow experiences a notable increase in precipitation, receiving 32 mm (1.2 in) of rain over five days. This uptick signals the transition into the monsoon season, a precursor to the much heavier and more frequent rains that follow in June, where rainfall skyrockets to 96 mm (3.8 in). Compared to the preceding months, May's rainfall is significantly higher than April's meager 10 mm (0.4 in), indicating a shift in weather patterns. As temperatures rise, the city welcomes these refreshing showers, which set the stage for the lush greenery and vibrant landscapes characteristic of the approaching monsoon months. The gradual buildup of moisture in May not only enhances the environment but also prepares the region for the forthcoming deluge.
In May, Lucknow experiences a slight uptick in humidity, resting at 37%, which is marginally higher than the 36% seen in April. This subtle shift marks the transition into the pre-monsoon season, as the city prepares to welcome the heavy rains of June. The humidity levels in May are notably lower compared to the sweltering high of 87% that July and August will bring, indicating a brief respite before the oppressive monsoon months set in. As the year progresses from the drier months of winter and early spring to the more humid summer season, May serves as a reminder of the environmental shifts that define Lucknow's unique climate, balancing warmth with a hint of moisture.
As May rolls into Lucknow, the UV Index remains consistently high at 9, indicating a very high exposure category. With a burn time of just 15 minutes, residents and visitors alike are advised to take precautionary measures against sun damage. This trend continues the high UV levels seen in April and March, demonstrating that as summer advances, so does the intensity of sun exposure. In fact, the UV Index hits its peak in June, climbing even higher to 10. As the months progress, maintaining sun safety becomes crucial; thus, it’s wise to stay informed about the Lucknow UV Index to ensure you enjoy the sun responsibly this May.
UV Risk Categories
May in Lucknow, India, is truly a radiant month, boasting 364 hours of sunshine—the brightest point in the year's solar calendar. This remarkable increase from 347 hours in April highlights a beautiful transition into the summer months, where residents and visitors alike can bask in the warm glow of the sun. Following May, June experiences a slight dip to 343 hours, but the overall trend showcases a gradual rise in sunshine hours leading up to the peak of summer. As the seasons shift, Lucknow’s sun-drenched May serves as a vibrant reminder of the region's bountiful warmth, setting the tone for the coming months, even as the sun begins to hide a bit earlier as the year progresses.
May in Lucknow, India, marks a noticeable shift in the weather, with the likelihood of sunny days dropping to 57%. This decrease comes after a series of months, from January to April, where the chances of sunshine consistently hovered between 75% and 89%. As the sweltering heat of summer approaches, the chance of clear skies dwindles significantly, especially with June's forecast revealing a stark 34% likelihood of sun. This trend suggests that while May still offers opportunities for bright days, residents should prepare for the impending monsoon season, which brings a dramatic decline in sunny weather as the year progresses.
In Lucknow, India, the daylight duration showcases a captivating rhythm throughout the year. The journey begins in January with just 10 hours, gradually increasing to 11 hours in February and hitting 12 hours by March. As April ushers in the springtime, daylight remains steady at 12 hours, but it truly blossoms in May, where it peaks at 13 hours of sunlight—a perfect setting for outdoor festivities and exploration. This extended daylight continues through June, July, and August, creating a summer embrace, until a gradual decline begins in September. By October, daylight begins to wane once again, returning to 10 hours by December, as the cycle completes itself. This seasonal interplay not only enriches the daily experiences but also aligns perfectly with cultural and agricultural rhythms in the region.
In Lucknow, May marks a transitional period as the average wind speed hovers at 2.7 m/s (6 mph), reflecting a gentle breeze that offers a welcome respite from the rising heat. This month demonstrates a slight dip compared to the steady 2.9 m/s typical of April, yet it remains consistent with the prevailing winds of earlier months. Compared to the milder winds of the preceding winter months, May's breezes start to feel more refreshing, paving the way for the sultry summer ahead. As winds begin to pick up slightly in the months that follow, particularly in September with an average of 3.3 m/s, May serves as a gentle reminder of the shifting seasons, balancing warmth with a soft whisper of wind.
Weather in Lucknow varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Lucknow, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present starkly contrasting weather characteristics. In May, temperatures soar with a minimum of 21°C (70°F) and an average high reaching up to 32°C (91°F), while the peak can escalate to a blistering 45°C (113°F). The month experiences moderate precipitation of 32 mm (1.2 in) over about 5 days, with humidity at a relatively low 37%.
In contrast, January offers a cooler climate, with temperatures ranging from a minimum of 3°C (38°F) to an average of 14°C (58°F), and a maximum of 27°C (81°F). Precipitation is slightly lower at 25 mm (1.0 in), occurring over just 2 days, but humidity is significantly higher at 74%, creating a markedly different atmosphere. For a closer look at the specifics, check out Lucknow weather in January.
May and February showcase stark contrasts in weather. In May, temperatures soar with a minimum of 21°C (70°F) and can reach up to a scorching 45°C (113°F), averaging around 32°C (91°F). This month experiences relatively low humidity at 37% and some precipitation, totaling 32 mm (1.2 in) over approximately 5 days. In contrast, February presents a much cooler atmosphere, where temperatures range from a chilly minimum of 7°C (44°F) to a maximum of 33°C (91°F), with an average of 18°C (65°F). This month also has higher humidity at 63% and less rainfall, amounting to 17 mm (0.7 in) over just 2 days. For a more detailed look at February weather, you can visit Lucknow weather in February.
The weather in May is significantly hotter than in March, with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 45°C (113°F), while March sees cooler temperatures, with a low of 10°C (50°F) and a high of 40°C (105°F). Additionally, May experiences more precipitation—32 mm (1.2 in) over 5 days—compared to March's 19 mm (0.7 in) over just 2 days, indicating that May is not only hotter but also wetter. Furthermore, humidity levels are lower in May at 37%, compared to a higher humidity of 53% in March, which can make the latter feel more uncomfortable despite its cooler temperatures. For more detailed information, you can check out Lucknow weather in March.
In comparing the weather between April and May, we notice a noticeable increase in temperatures as May sees a minimum of 21°C (70°F) and an average high of 32°C (91°F), contrasting with April's minimum of 17°C (63°F) and average high of 30°C (87°F). While both months share similar humidity levels—37% in May versus 36% in April—May experiences more extreme heat with a maximum temperature reaching 45°C (113°F), slightly surpassing April's maximum of 44°C (111°F). Additionally, May has a higher total precipitation of 32 mm (1.2 in) over 5 days, compared to April's 10 mm (0.4 in) over 3 days. For more detailed information, you can explore the Lucknow weather in April.
May and June present striking contrasts in weather, despite having similar average temperatures. In May, temperatures can range from a minimum of 21°C (70°F) to a scorching maximum of 45°C (113°F), with relatively low humidity at 37% and only 32 mm (1.2 in) of precipitation occurring over 5 days. Conversely, June experiences slightly warmer nights with a minimum of 23°C (73°F) but a slightly lower maximum of 44°C (112°F). However, June is significantly wetter, with 96 mm (3.8 in) of rainfall over 12 days and much higher humidity at 56%. For more detailed information, visit Lucknow weather in June.
In May, the weather tends to be much hotter and drier compared to July. With temperatures ranging from a minimum of 21°C (70°F) to a scorching maximum of 45°C (113°F), and an average of 32°C (91°F), the heat can be quite intense, accompanied by only 32 mm (1.2 in) of precipitation over just five days, and relative humidity at 37%.
In contrast, July brings a significant shift in the weather, characterized by cooler average temperatures of 30°C (87°F) that range from a minimum of 24°C (76°F) to a maximum of 39°C (102°F). However, it is also the peak of the monsoon season, leading to substantial rainfall of 353 mm (13.9 in) over 24 days, resulting in high humidity levels of 87%.
For a detailed view of what to expect, check out Lucknow weather in July.
May and August present quite contrasting weather conditions. In May, temperatures range from a minimum of 21°C (70°F) to a scorching maximum of 45°C (113°F), with an average of 32°C (91°F). The month sees relatively low precipitation of 32 mm (1.2 in) over about 5 days, and humidity levels sit at a comfortable 37%. In contrast, August experiences milder temperatures, with a minimum of 25°C (77°F) and a maximum of 36°C (97°F), averaging at 30°C (85°F). However, it is marked by significantly higher precipitation, amounting to 302 mm (11.9 in) over 27 days, and a much higher humidity of 91%. This change in weather drastically affects the overall climate experience, making August notably wetter and more humid. For more detailed insights, check out Lucknow weather in August.
May and September in Lucknow present a stark contrast in weather conditions. May is characterized by scorching temperatures, with a minimum of 21°C (70°F) and an average high of 32°C (91°F), often reaching extremes of up to 45°C (113°F). The month experiences relatively low humidity at 37% and only minimal rainfall, totaling just 32 mm over about five days. In contrast, September brings milder temperatures, with a minimum of 23°C (74°F) and an average high of 29°C (85°F). However, this month is marked by increased humidity at 90% and substantial rainfall, accumulating 201 mm over about 18 days. The weather shift from the heat of May to the wetter, more humid conditions of September highlights the transition into the monsoon season. For more details, you can check Lucknow weather in September.
When comparing the weather in May and October, we see significant differences in temperature and humidity. May experiences much hotter temperatures, with an average high of 32°C (91°F) and extremes reaching up to 45°C (113°F). In contrast, October offers a more moderate climate, with average temperatures around 27°C (81°F) and a maximum of 36°C (98°F). Additionally, May has lower humidity at 37% and receives more rainfall, totaling 32 mm (1.2 inches) over about five days. October, however, has higher humidity at 87% but significantly less precipitation, with only 14 mm (0.6 inches) over two days. For more detailed information, you can check Lucknow weather in October.
May and November present contrasting weather characteristics. In May, temperatures soar with a minimum of 21°C (70°F) and can reach highs of 45°C (113°F), averaging around 32°C (91°F). The month experiences some rainfall, with 32 mm (1.2 in) over about 5 days and relatively low humidity at 37%. In stark contrast, November offers a much cooler climate, with temperatures ranging from a minimum of 10°C (49°F) to a maximum of 33°C (91°F), averaging 21°C (70°F). This month sees minimal precipitation of just 2 mm (0.1 in) and no rainy days, accompanied by significantly higher humidity at 85%. For more detailed insights, you can check Lucknow weather in November.
May and December present stark contrasts in weather patterns. In May, temperatures soar with a minimum of 21°C (70°F) and can peak at a sweltering 45°C (113°F), making it one of the hottest months of the year. The average temperature is around 32°C (91°F), accompanied by low humidity at 37% and some precipitation, with about 32 mm (1.2 in) over five days. In contrast, December brings a much cooler climate, featuring a minimum temperature of 4°C (39°F) and a pleasant average of 16°C (60°F), while highs reach only up to 29°C (84°F). December is quite dry, with only 11 mm (0.4 in) of precipitation and no rainy days, alongside a significantly higher humidity level of 82%. For more information on December weather, you can check Lucknow weather in December.
As May rolls into Lucknow, residents experience a notable shift in weather compared to earlier months. The temperatures soar, reaching noteworthy highs, with an average that nudges towards summer’s peak, while lows remain relatively mild. Though precipitation is modest, occurring over just a handful of days, the dry heat combined with humidity can make the evenings feel sweltering. This month serves as a precursor to the intense summer ahead, distinguished by intense sunshine and increased warmth. For a full understanding of the conditions you can expect throughout the year, visit Lucknow Climate.