May Weather in Hermosillo, Mexico

Last updated: April 22, 2025

In Hermosillo, Mexico, the weather in May is characterized by warm temperatures and a dry atmosphere. With a maximum reaching 43°C (110°F) and an average of 28°C (82°F), daytime can be exceedingly hot, while nights cool down to a minimum of 13°C (55°F). This month boasts an almost precipitation-free experience, receiving only 2 mm (0.1 in) of rainfall over zero days, and maintaining a humidity level around 46%. Such conditions make May an ideal time for outdoor activities, allowing residents and visitors to fully enjoy the sunny days.

May Temperature in Hermosillo

In Hermosillo, Mexico, the month of May marks a significant transition towards the sweltering summer heat, with temperatures showcasing a range that reflects this shift. The minimum temperature settles at 13°C (55°F), providing a pleasantly warm start to the day. By midday, the average climbs to a comfortable 28°C (82°F), ideal for outdoor activities. However, as the sun peaks, temperatures soar to a scorching 43°C (110°F), highlighting Hermosillo's reputation for intense heat. This upward trend from the cooler months is evident, as May's averages bridge the gap between the mild temperatures of spring and the relentless summer heat that follows, making it a vibrant yet challenging time in this desert city.

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

The chart illustrates May temperature patterns in Hermosillo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec596168778290969690786858
Data source: Temperature data for Hermosillo 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 Hermosillo

In Hermosillo, Mexico, May typically signals the end of the dry season, but this year, it brought just 2 mm (0.1 in) of rain, an amount hardly enough to dampen the arid landscape. Notably, this month recorded zero days of precipitation, continuing a trend of minimal rainfall from April's 3 mm. The early months of the year, such as January and February, saw slightly more rainfall, with 8 mm and 14 mm respectively. However, as spring progressed, precipitation dwindled significantly, reflecting Hermosillo's characteristic climate of hot, dry summers ahead, with June forecasted to receive no rain at all. It's clear that as the year progresses, the region transitions into its typical dry spells, emphasizing the stark rainfall contrasts witnessed throughout the months.

May Precipitation Trends in Hermosillo

The chart displays monthly precipitation patterns in Hermosillo, 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.
JanFebMarAprMayJunJulAugSepOctNovDec8141732010918768
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Hermosillo

As spring transitions into summer in Hermosillo, Mexico, May brings a refreshing dip in humidity levels, with a comfortable 46% compared to the more humid early months of the year. This notable decrease from 72% in January to 77% in February creates a stark contrast with the drier conditions that follow. As the region approaches the peak of summer in June and July, humidity remains relatively stable around 48% and 46%, respectively. This trend of reducing humidity through late spring into summer sets the stage for a series of warm, inviting days, perfect for outdoor activities in this vibrant desert city.

May Average Humidity in Hermosillo

This chart illustrates the average monthly humidity levels in Hermosillo, with May's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how May's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec72%77%67%56%46%48%46%42%52%58%66%74%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Hermosillo

In Hermosillo, Mexico, the UV Index reaches its peak in May, registering an extreme level of 11. This marks a significant trend as the index climbs from a moderate 4 in January to a startling 10 by April, leading into May’s intensifying sun exposure. With a burn time of just 10 minutes, outdoor enthusiasts should exercise caution and prioritize sun protection during this time. As summer approaches, the heat continues, with June and July maintaining the extreme UV levels, compelling residents and visitors to remain vigilant about sun safety. For more detailed information on sun exposure throughout the year, check out the Hermosillo UV Index.

Maximum UV Index Levels in Hermosillo for May

The chart shows the monthly maximum UV Index (UVI) for Hermosillo 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.
JanFebMarAprMayJunJulAugSepOctNovDec469101111121110854
Data source: Hermosillo 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 Hermosillo

As May unfolds in Hermosillo, Mexico, the city basks in the glory of 373 hours of sunshine, marking a delightful crescendo in its sunlit symphony. This month stands out, often referred to as a vibrant prelude to summer, where the daylight hours increase steadily from the 204 hours in January to a radiant peak, demonstrating the region's unmistakable shift toward warmth and brightness. Following May, June continues this trend with 377 hours, but it’s the transition from the cooler months that highlights the city’s enchanting brightness, setting the stage for long, sun-drenched days that envelop residents and visitors alike. The gradual ramp-up of sunlight is a testament to Hermosillo's charm, making it an inviting escape for those seeking the soothing embrace of warmth and sunshine.

Monthly Sunshine Duration in Hermosillo: May Highlighted

The May sunshine duration represents the total number of hours Hermosillo 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.
JanFebMarAprMayJunJulAugSepOctNovDec204h251h309h331h373h377h375h358h322h304h264h247h
Data source: Hermosillo May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hermosillo During May

May in Hermosillo, Mexico, is a standout month when it comes to sunny weather, boasting a remarkable 92% chance of sunshine. This peak in brightness follows a trend of increasing clarity as spring progresses; after starting the year with 71% in January, the likelihood of sunny days steadily climbs, reaching a high in both March (83%) and April (82%). Although the optimism for bright skies dips in the summer months of June (77%) and July (53%), the warmth and vibrant sunshine of May make it an ideal time to enjoy outdoor activities under clear blue skies. With a consistently pleasant climate, May beckons residents and visitors alike to bask in the radiance of Hermosillo's sunny disposition.

Percentage of Sunny Days in May in Hermosillo

The chart illustrates the percentage of sunny days in Hermosillo 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 Hermosillo experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec71%73%83%82%93%77%54%84%84%81%74%62%
Data source: Hermosillo May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hermosillo in May

As the year progresses in Hermosillo, Mexico, the daylight duration showcases a striking pattern that reflects the transition of the seasons. Starting with a modest 10 hours in January, daylight gradually increases, reaching 12 hours by March and peaking at 14 hours during the sun-drenched months of June and July. Interestingly, May holds onto the 13 hours of daylight established in April, providing ample sunshine as spring gives way to the heat of summer. Following this bright pinnacle, the days begin to shorten once again, tapering back to 10 hours by December. This cyclical ebb and flow of daylight not only illuminates Hermosillo's skies but also signals the shift in the local climate, creating an engaging rhythm that residents and visitors alike can enjoy throughout the year.

Average Daylight Hours in Hermosillo for May

The chart illustrates the variation in daylight duration in Hermosillo throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 16m11h 1m12h13h13h 50m14h 14m14h 1m13h 16m12h 19m11h 19m10h 27m10h 2m
Data source: Hermosillo daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Hermosillo

In Hermosillo, Mexico, May greets residents with a gentle breeze, featuring an average wind speed of 2.7 m/s (6 mph), mirroring the calmness of January and April. As the season transitions into summer, the winds remain steady, providing a refreshing contrast to the rising temperatures. The gusts pick up slightly in June and July, reaching 3.2 m/s (7 mph), before tapering down in the subsequent months, suggesting a pattern where spring's mild winds give way to slightly stronger summer breezes. Overall, May stands as a serene prelude to the more vibrant winds of summer, preserving the tranquil charm of this desert city.

Average May Wind Speed in Hermosillo

The chart displays monthly wind speed patterns in Hermosillo, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.73.12.92.92.7 m/s2.83.22.82.32.62.42.4
Data source: Hermosillo May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Hermosillo Compares to Other Months

The weather in Hermosillo changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Hermosillo and find detailed weather information for every month.

May and January present stark contrasts in weather conditions. In May, temperatures soar significantly, with a minimum of 13°C (55°F) and an average high of 28°C (82°F), reaching extremes of up to 43°C (110°F). The month is nearly dry, boasting only 2 mm (0.1 in) of precipitation and showing no rainy days, accompanied by a relatively low humidity of 46%. In contrast, January features much cooler temperatures, with a minimum of 2°C (35°F) and an average maximum of 30°C (86°F). This month experiences more humidity at 72% and slightly higher precipitation, totaling 8 mm (0.3 in) over just one rainy day. For further details on January weather, check out Hermosillo weather in January.

May and February present strikingly different weather conditions. In May, temperatures soar, with an average of 28°C (82°F) and maximums reaching up to 43°C (110°F), while February enjoys much cooler averages of 16°C (62°F) and a maximum of 31°C (89°F). May is notably dry, with negligible precipitation and humidity at 46%, contrasting sharply with February's 14 mm of rain over two days and higher humidity at 77%. For a detailed look at February's weather, you can visit Hermosillo weather in February.

In comparing the weather between March and May, one can see a significant shift in temperature and humidity levels. March experiences a minimum temperature of 5°C (41°F) and an average of 20°C (68°F), reaching a maximum of 37°C (98°F), with a notable precipitation of 17 mm (0.7 in) over one day. In contrast, May boasts a much warmer climate, with minimum temperatures around 13°C (55°F) and averages soaring to 28°C (82°F), peaking at a scorching 43°C (110°F). Additionally, May is remarkably dry, receiving only 2 mm (0.1 in) of precipitation and experiencing no rainy days, while humidity drops to 46%, compared to a higher 67% in March. For further details on March weather, you can check Hermosillo weather in March.

In comparing the weather between April and May, it's evident that May is warmer overall, with an average temperature of 28°C (82°F) compared to April's 25°C (77°F). Both months feature similar maximum temperatures, peaking at 43°C (109°F) in April and 43°C (110°F) in May. However, May shows a notable increase in minimum temperature, rising from April's 9°C (48°F) to 13°C (55°F). Precipitation remains low in both months, with May receiving just 2 mm (0.1 in) and April slightly higher at 3 mm (0.1 in), with no recorded rainy days in either month. Additionally, humidity is lower in May at 46%, compared to 56% in April. For a detailed comparison of April weather, visit Hermosillo weather in April.

In comparing the weather of May and June, we see a noticeable increase in temperature and humidity. May starts with a minimum temperature of 13°C (55°F) and an average high of 28°C (82°F), while June features a higher minimum of 18°C (65°F) and an average maximum of 32°C (90°F). June can be even more extreme, with maximum temperatures reaching up to 49°C (120°F), compared to May's peak of 43°C (110°F). Additionally, both months experience little to no precipitation, with May recording just 2 mm across zero days, and June remaining completely dry. The humidity also rises slightly in June to 48% from May's 46%. For more detailed information, you can check out Hermosillo weather in June.

In comparing the weather between May and July, it’s evident that July is considerably warmer, with average temperatures reaching 35°C (96°F) compared to May's average of 28°C (82°F). July also sees higher maximum temperatures, peaking at 48°C (119°F), while May's maximum is 43°C (110°F). Additionally, July experiences slightly more precipitation at 10 mm (0.4 in) over two days, whereas May has virtually no rain. Interestingly, both months maintain a consistent humidity level of 46%, ensuring that the summer heat remains intense. For more specific details on July weather patterns, you can visit Hermosillo weather in July.

May and August present distinct contrasts in weather characteristics. In May, temperatures range from a comfortable minimum of 13°C (55°F) to a scorching maximum of 43°C (110°F), with an average of 28°C (82°F). The month boasts negligible precipitation, totaling just 2 mm (0.1 in) over zero rainy days, and humidity sits at a moderate 46%. In contrast, August experiences significantly warmer temperatures, with a minimum of 24°C (76°F), averaging 36°C (96°F), and reaching up to a blistering maximum of 47°C (117°F). Precipitation slightly increases to 9 mm (0.3 in) over three days, while humidity remains relatively low at 42%. For more details, visit Hermosillo weather in August.

In May, the weather is characterized by warm temperatures, with a minimum of 13°C (55°F) and an average high reaching 43°C (110°F), but with very little precipitation and a relatively low humidity of 46%. In contrast, September sees slightly cooler nights with a minimum temperature of 16°C (61°F), but the average high rises to 48°C (120°F), accompanied by increased precipitation of 18 mm (0.7 in) spread over three days and a higher humidity level of 52%. Overall, while both months are warm, September tends to be more humid and wetter compared to the drier heat of May. For more details, check out Hermosillo weather in September.

In May, the weather is characterized by warm temperatures with a minimum of 13°C (55°F) and an average high of 28°C (82°F), often peaking at a scorching 43°C (110°F). The month experiences very little precipitation, averaging only 2 mm (0.1 in) over no rainy days, and the humidity sits comfortably at 46%.

In contrast, October sees cooler temperatures, with a minimum of 8°C (47°F) and an average high of 25°C (78°F), again reaching the max of 43°C (110°F) on particularly warm days. This month has slightly increased rainfall, with 6 mm (0.3 in) spread across just one rainy day, leading to a rise in humidity levels to 58%. For more detailed information about the weather, check out Hermosillo weather in October.

In comparing the weather of May and November, May boasts significantly warmer temperatures, with averages reaching up to 28°C (82°F) and a scorching maximum of 43°C (110°F). In contrast, November experiences much cooler temperatures, averaging 20°C (68°F) and peaking at 36°C (97°F). Interestingly, while both months see very little precipitation, November presents a slightly higher rainfall amount of 6 mm (0.2 in) compared to May’s minimal 2 mm (0.1 in). Additionally, humidity levels are notably higher in November at 66%, compared to the more comfortable 46% in May. For more detailed insights into November weather, you can check out Hermosillo weather in November.

In comparing the weather of May and December, there is a significant contrast in temperatures and humidity levels. May experiences a range of temperatures from a minimum of 13°C (55°F) to a scorching maximum of 43°C (110°F), with an average of 28°C (82°F) and very low humidity at 46%. Additionally, there is virtually no precipitation, with 0 days of rain recorded. In contrast, December sees much cooler conditions, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 28°C (84°F), averaging at 14°C (58°F). The humidity level rises significantly to 74%, and there is some precipitation, totaling 8 mm (0.3 in) over 1 day. For further details, you can check Hermosillo weather in December.

Compare Hermosillo's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Hermosillo

As May arrives in Hermosillo, the weather transforms into a vibrant tapestry of warmth and sunshine, diverging from the cooler temperatures of spring. With average highs reaching up to 43°C (110°F), this month heralds the onset of summer, showcasing the region's striking desert climate. Notably, rainfall remains a rarity, with practically no precipitation to speak of, ensuring that clear skies dominate the forecast. The moderate humidity levels maintain a balance, making the heat more bearable. As you prepare for outdoor activities in this sun-drenched locale, you can learn more about how May compares to other months by visiting Hermosillo Climate.