May Weather in Sonora, Mexico

Last updated: April 22, 2025

May in Sonora, Mexico presents a vibrant tapestry of weather characterized by warm temperatures and a hint of unpredictability. With maximums reaching up to 37°C (100°F), the average temperature settles at a comfortable 27°C (80°F), making it an ideal time for outdoor activities. However, nighttime brings a refreshing coolness, as temperatures can dip to a minimum of 17°C (63°F). Precipitation plays a pivotal role this month, with 119 mm (4.7 in) spread over approximately 15 days, contributing to the region's lush landscapes. The humidity hovers around 82%, adding a tropical feel that captivates both locals and visitors alike. Embrace the mix of sun and rain as Sonora flourishes in this lively transition into summer.

May Temperature in Sonora

In May, temperatures in Sonora, Mexico begin to reflect the approaching summer, showcasing a noticeable shift towards warmth. With a minimum of 17°C (63°F), the nights are mild, allowing for comfortable outdoor activities. Days warm up significantly, reaching an average temperature of 27°C (80°F) and a maximum of 37°C (100°F), making it one of the hottest months of the year. This trend continues from April's peak, indicating a gradual transition into the summer heat, perfect for enjoying the vibrant landscapes and rich culture that Sonora has to offer. As the month progresses, the ascent toward the sultry summer months becomes evident, signaling the time for sun-soaked adventures.

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

The chart illustrates May temperature patterns in Sonora, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec677073778079787878767168
Data source: Temperature data for Sonora 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 Sonora

May marks a significant shift in precipitation patterns in Sonora, Mexico, as rainfall dramatically increases to 119 mm (4.7 inches), the highest of the year so far. This surge is accompanied by an uptick in rainy days, with 15 days of precipitation compared to the previous months, setting the stage for the region's transition into the wet season. As temperatures rise, the arrival of May's rains replenishes the landscape, nourishing both flora and fauna in preparation for the even wetter months ahead. This trend reveals a clear escalation towards June’s peak, where rainfall escalates to 269 mm (10.6 inches) over 26 days. The progression from May to June not only highlights the region's climatic dynamics but also underscores the importance of this month as a prelude to the heavy rains that characterize Sonora’s summer.

May Precipitation Trends in Sonora

The chart displays monthly precipitation patterns in Sonora, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4749666311926918025030122511445
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Sonora

In Sonora, Mexico, the month of May typically brings a slight dip in humidity, settling at 82%, which is a minor shift from the higher levels seen in the previous months. From the start of the year, humidity starts at a substantial 88% in January, gradually tapering off to 81% by June. The spring months show a consistent decline, with April marking a notable drop to 81%. As we move into summer, humidity levels stabilize around 81% to 82%, hinting at a unique climatic rhythm where the air feels relatively less humid compared to the preceding months. This pattern suggests a crispness returning to the atmosphere in May, a refreshing transition before the rising humidity returns in the fall. Overall, Sonora's humidity trends reveal a dynamic climate that showcases both variation and consistency throughout the year.

May Average Humidity in Sonora

This chart illustrates the average monthly humidity levels in Sonora, 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.
JanFebMarAprMayJunJulAugSepOctNovDec88%86%84%81%82%81%81%82%86%90%91%91%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Sonora

As May rolls around in Sonora, Mexico, the UV Index remains high, steady at 13 and classified as extreme, indicating that sun protection is essential for outdoor activities. Following a pattern set in the preceding months of March and April, which also registered a UV Index of 13, the intensity of solar radiation is a consistent concern during this time of year. With a quick burn time of just 10 minutes, residents and visitors alike should be vigilant, applying sunscreen and seeking shade to safeguard against harmful effects. This trend extends into the summer months, with June and July reaching even higher levels at 14. For those planning to enjoy the vibrant sunshine, understanding the escalating UV Index is crucial. Stay informed and sun-safe by checking the latest details on Sonora UV Index.

Maximum UV Index Levels in Sonora for May

The chart shows the monthly maximum UV Index (UVI) for Sonora 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.
JanFebMarAprMayJunJulAugSepOctNovDec911131313141413131198
Data source: Sonora 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 Sonora

May in Sonora, Mexico, shines particularly bright, boasting 316 hours of glorious sunshine that marks a significant peak for the month. This is part of an upward trend that begins in the chill of January, gradually increasing as spring unfolds. With the hours of sunlight consistently rising from 214 hours in January to 301 hours in April, May's radiant days signal the imminent arrival of summer. The warmth continues through June and July, where the sunniest months reach a dazzling 324 hours in July. This pattern of abundant sunlight not only enhances the region's natural beauty but also invites locals and visitors alike to immerse themselves in the vibrant ambiance of Sonora's early summer days.

Monthly Sunshine Duration in Sonora: May Highlighted

The May sunshine duration represents the total number of hours Sonora 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.
JanFebMarAprMayJunJulAugSepOctNovDec214h255h297h301h316h288h324h315h289h300h279h283h
Data source: Sonora May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sonora During May

As May approaches in Sonora, Mexico, residents and visitors alike can expect a 39% chance of sunny weather, a slight dip compared to the preceding months of April (47%) and March (51%). This trend indicates a seasonal shift, as the sunnier days of early spring begin to give way to the hotter summer months, where the likelihood plummets to just 13% in June. While May still offers a respectable chance for clear skies, the onset of summer brings a larger potential for cloud cover and precipitation. Thus, those planning outdoor activities should enjoy the remaining sunny opportunities while they can, as the transition to the sweltering summer awaits.

Percentage of Sunny Days in May in Sonora

The chart illustrates the percentage of sunny days in Sonora 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 Sonora experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec25%42%51%47%39%13%32%35%19%29%31%59%
Data source: Sonora May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sonora in May

As spring transitions into summer, May marks a delightful increase in daylight duration in Sonora, Mexico, with 13 hours of sunlight to enjoy. This trend follows a gradual uptick from 12 hours in April, showcasing the region’s shift toward longer days as warmer months approach. The months of March and April heralded a subtle lengthening of daylight, but it’s in May when the true abundance of sunlight takes center stage. Following this peak, daylight begins to stabilize at 13 hours through June and July, before gently tapering off in August. The rhythm of daylight through the year paints a vivid picture of Sonora's seasonal changes, inviting residents and visitors alike to bask in the sun's generous embrace during this vibrant month.

Average Daylight Hours in Sonora for May

The chart illustrates the variation in daylight duration in Sonora throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 7m11h 31m12h 2m12h 34m13h 1m13h 14m13h 7m12h 43m12h 12m11h 40m11h 13m10h 59m
Data source: Sonora daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Sonora

In Sonora, Mexico, the month of May brings a gentle shift in the winds, with an average speed of 1.2 m/s (3 mph). This marks a subtle decline from the earlier months of the year, where the winds were slightly stronger at around 1.4 m/s (3 mph) in January. As the region transitions into the warmth of summer, the wind speeds remain consistent, aligning closely with the patterns observed in June and July. Overall, from January through May, there's a noticeable trend toward calmer breezes, setting a tranquil atmosphere that complements the blossoming landscapes of the desert. This mild windiness is characteristic of Sonora's serene and laid-back climate, inviting both residents and visitors to enjoy the enchanting surroundings.

Average May Wind Speed in Sonora

The chart displays monthly wind speed patterns in Sonora, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.41.51.51.51.2 m/s1.21.21.31.21.21.31.2
Data source: Sonora May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Sonora Compares to Other Months

The weather in Sonora 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 Sonora and find detailed weather information for every month.

The weather in May is significantly warmer compared to January, with average temperatures reaching 27°C (80°F), peaking at a scorching 37°C (100°F). In contrast, January experiences much cooler temperatures, with an average of 20°C (67°F) and a maximum of 33°C (91°F). Additionally, May sees higher rainfall, with 119 mm (4.7 inches) over 15 days, while January has only 47 mm (1.9 inches) across 9 days. Humidity levels are similar, but May's 82% is slightly lower than January's 88%. For more details, check out Sonora weather in January.

May and February exhibit distinct weather characteristics, with May generally being warmer and more humid. In May, temperatures range from a minimum of 17°C (63°F) to a maximum of 37°C (100°F), contributing to an average temperature of 27°C (80°F). The month sees considerable rainfall, with 119 mm (4.7 in) over approximately 15 days, resulting in humidity levels around 82%. In contrast, February presents a milder climate, with temperatures ranging from 9°C (48°F) to 36°C (98°F), leading to an average of 21°C (70°F). Precipitation is lower in February, totaling 49 mm (1.9 in) across 9 days, and humidity is slightly higher at 86%. For more detailed information about February weather, you can visit Sonora weather in February.

When comparing the weather in May and March, it's clear that May is generally warmer and more humid. The average temperature in May reaches 27°C (80°F), compared to March's average of 23°C (73°F). Both months share a maximum temperature of 37°C (98°F), but May has a notably higher minimum temperature of 17°C (63°F), compared to March's 11°C (53°F). Additionally, May experiences more rainfall, with 119 mm (4.7 in) spread over 15 days, while March sees less precipitation at 66 mm (2.6 in) over 9 days. March's humidity level is slightly higher at 84%, compared to May's 82%. For more details, visit Sonora weather in March.

In comparing the weather between April and May, we see notable differences in both temperature and precipitation. April features a slightly lower average temperature of 25°C (77°F) with a maximum of 40°C (104°F), while May warms up to an average of 27°C (80°F) but can reach a maximum of 37°C (100°F). Precipitation levels also vary significantly, with May receiving 119 mm (4.7 in) over 15 days, nearly double that of April's 63 mm (2.5 in) over 9 days. Humidity remains relatively consistent, at 81% in April and 82% in May. For more detailed weather patterns, you can check out this link: Sonora weather in April.

In comparing the weather between May and June, we see a slight shift in temperatures and a significant increase in precipitation. May boasts a minimum of 17°C (63°F) and an average temperature of 27°C (80°F), reaching a maximum of 37°C (100°F). In contrast, June starts with a slightly higher minimum temperature of 18°C (65°F) and has a similar average of 26°C (79°F), peaking at 36°C (96°F). However, June experiences a dramatic rise in rainfall, with 269 mm (10.6 in) over 26 days, compared to May's 119 mm (4.7 in) over 15 days. The humidity remains fairly consistent, at 82% in May and 81% in June. For more detailed insights into June weather, check out Sonora weather in June.

May weather is generally warmer than July, with average temperatures peaking at 27°C (80°F) compared to July's 25°C (78°F). While both months experience similar minimum temperatures, May can reach a sweltering maximum of 37°C (100°F), significantly higher than July's maximum of 33°C (92°F). In terms of precipitation, July is wetter, receiving 180 mm (7.1 in) over 23 days, compared to May's 119 mm (4.7 in) over 15 days. Humidity levels are quite similar between the two months, with May at 82% and July at 81%. For more specific details, you can visit Sonora weather in July.

May and August exhibit notable differences in weather patterns, despite their similar minimum temperatures, which hover around 17°C (63°F). In May, the average high reaches a scorching 37°C (100°F), contrasted sharply by August, where the maximum temperature peaks at a more moderate 33°C (92°F). While May experiences a total precipitation of 119 mm (4.7 in) over 15 days, August sees a substantial increase in rainfall, with 250 mm (9.8 in) spread over 28 days, creating a much more humid environment. Both months share a constant humidity level of 82%, making them feel equally muggy. For more details on August weather, you can check Sonora weather in August.

In comparing the weather in May and September, we see some notable differences. May typically experiences higher average temperatures, peaking at around 37°C (100°F), while September's average is slightly cooler at 25°C (78°F). However, September brings significantly more rainfall, with an average precipitation of 301 mm (11.8 in) over 28 days, in contrast to May's 119 mm (4.7 in) over 15 days. Humidity levels also rise slightly in September, reaching 86% compared to May's 82%. For a detailed overview, you can check Sonora weather in September.

In May, the weather tends to be warmer with temperatures ranging from a minimum of 17°C (63°F) to a scorching maximum of 37°C (100°F), while October sees cooler averages of 15°C (60°F) to a max of 33°C (93°F). May experiences a significant amount of sunshine but also faces 119 mm (4.7 in) of rain over about 15 days, whereas October is wetter overall, with 224 mm (8.8 in) of precipitation spread across 21 days. The humidity levels are relatively high in both months, with May at 82% and October rising to 90%. For a closer look at the weather specifics during October, you can visit Sonora weather in October.

In comparing the weather between May and November, it’s evident that May tends to be hotter and more humid. With average temperatures peaking at 27°C (80°F) and reaching a maximum of 37°C (100°F), May is characterized by its warmth and high humidity at 82%. In contrast, November offers milder conditions, with an average temperature of 22°C (71°F) and a maximum of 33°C (92°F). While both months experience notable precipitation—119 mm (4.7 in) in May and 114 mm (4.5 in) in November—November sees slightly more rainy days, totaling 17 compared to May's 15 days. Additionally, November's humidity rises to 91%, making it feel a bit more damp than the preceding month. For a more detailed look at November's weather, take a look at Sonora weather in November.

When comparing the weather in May to December, it's evident that both months have distinct characteristics. In May, temperatures range significantly with a minimum of 17°C (63°F) and a maximum of 37°C (100°F), leading to a hot average of 27°C (80°F). Additionally, May experiences higher precipitation, totaling 119 mm (4.7 in) over about 15 days, alongside relatively high humidity at 82%.

In contrast, December's temperatures are cooler, showcasing a minimum of 6°C (43°F) and a maximum of 32°C (90°F), with an average of 20°C (68°F). Precipitation levels are lower in December, with a total of 45 mm (1.8 in) spread over 9 days, and humidity is slightly higher at 91%.

For more detailed information, you can refer to Sonora weather in December.

Compare Sonora's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Sonora

As May unfolds in Sonora, the weather presents a delightful mix of warmth and humidity, setting it apart from the cooler months preceding it. With temperatures frequently reaching their peak, averaging around 27°C (80°F), this month ushers in the heat, encouraging outdoor activities. While the warmth invites adventure, the high humidity can feel stifling, making the sporadic rainy days a refreshing contrast. In total, May sees about 15 days of precipitation, culminating in an average of 119 mm of moisture that sustains the vibrant landscapes. This distinctive blend of warmth and occasional rain creates a unique experience for residents and travelers alike, making it an ideal time to explore the beauty of Sonora. For a deeper understanding of what to expect, check out more details at Sonora Climate.