May Weather in San Juan Vallarta, Mexico

Last updated: April 22, 2025

May in San Juan Vallarta, Mexico, is characterized by warm and inviting weather, perfect for enjoying the stunning coastal scenery. Daytime temperatures can reach a maximum of 35°C (95°F), while the average temperature settles at a comfortable 23°C (74°F), making it ideal for outdoor adventures. The evenings bring a refreshing cooldown, with nighttime lows dipping to 14°C (57°F). However, visitors should prepare for increased humidity at 77% and persistent rainfall, as May averages 131 mm (5.2 in) of precipitation over 17 days. Despite the occasional showers, the lush landscapes and vibrant atmosphere make San Juan Vallarta a captivating destination this month.

May Temperature in San Juan Vallarta

As May unfolds in San Juan Vallarta, Mexico, temperatures begin to climb, ushering in the warm embrace of late spring. With a minimum of 14°C (57°F) and a maximum reaching up to 35°C (95°F), this month showcases a delightful average temperature of 23°C (74°F), perfectly suited for beachgoers and outdoor adventurers alike. Compared to the preceding months, May stands out as the threshold to the summer heat, recording the year’s highest maximum temperature. As daylight stretches longer and the sun shines brighter, the pleasant warmth invites residents and visitors to indulge in the vibrant local culture, stunning coastal landscapes, and an array of water activities. Whether lounging on the beach or savoring local cuisine, May is an idyllic time to experience the lively atmosphere that San Juan Vallarta has to offer.

May Weather in San Juan Vallarta: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in San Juan Vallarta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec646771747471717169696764
Data source: Temperature data for San Juan Vallarta 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 San Juan Vallarta

May marks a significant transition in San Juan Vallarta's weather patterns as precipitation surges dramatically. With 131 mm (5.2 in) of rain falling over 17 days, it becomes one of the wettest months of the year, poised between the drier months of spring and the even wetter summer months ahead. This increase is notable coming from just 36 mm (1.4 in) in April, signaling the onset of the rainy season. As temperatures rise, the lush tropical environment revitalizes, attracting both locals and visitors to experience the vibrant scenery. The steady rise in precipitation from January's merely 4 mm (0.2 in) underscores a clear trend: the region is gearing up for the more intense rainfall that will characterize June and beyond, as recorded precipitation nearly doubles, reaching 277 mm (10.9 in).

May Precipitation Trends in San Juan Vallarta

The chart displays monthly precipitation patterns in San Juan Vallarta, 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.
JanFebMarAprMayJunJulAugSepOctNovDec561336132277198254315120364
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Juan Vallarta

As the vibrant month of May unfolds in San Juan Vallarta, Mexico, humidity levels settle at 77%, reflecting a slight increase from the drier April of 70%. This moderate level of humidity is part of a broader trend, where the month serves as a bridge between the preceding dry season and the more humid summer months ahead. Notably, humidity begins its ascent in February, peaking in the fall with October's high of 91%. As temperatures rise, May offers a pleasant balance—warm enough to enjoy the stunning beaches while the humidity remains manageable compared to the sultry months that follow. Whether you're basking in the sun or exploring the local culture, May's humidity sets the stage for engaging experiences in this tropical paradise.

May Average Humidity in San Juan Vallarta

This chart illustrates the average monthly humidity levels in San Juan Vallarta, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84%78%75%71%77%76%68%70%82%91%89%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Juan Vallarta

In May, San Juan Vallarta experiences a consistently high UV Index of 14, categorizing it as extreme and prompting caution for sun exposure. With a quick burn time of just 10 minutes, it's vital for outdoor enthusiasts and beachgoers to prioritize sun protection during this month. The trend leading up to May shows a steady increase in UV intensity, peaking with this month’s extreme rating, which continues into June and through the summer. As the sun shines brightly, remember to stay vigilant and protect your skin by seeking shade or wearing sunscreen. For more information on UV levels throughout the year, check out San Juan Vallarta UV Index.

Maximum UV Index Levels in San Juan Vallarta for May

The chart shows the monthly maximum UV Index (UVI) for San Juan Vallarta 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.
JanFebMarAprMayJunJulAugSepOctNovDec10121414141414141412109
Data source: San Juan Vallarta 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 San Juan Vallarta

As the calendar turns to May, San Juan Vallarta basks in the warmth of 332 hours of sunshine, marking a vibrant peak in its sun-drenched season. Following a steady climb from 244 hours in January, the sunny days gain momentum, with April already showcasing 320 hours. This upward trend continues into June, though slightly retreating to 303 hours. The consistent brightness throughout these months not only elevates the charm of this coastal paradise but also invites visitors to immerse themselves in its breathtaking beaches and lively culture. Thus, May stands as a radiant highlight in Vallarta, where sunlit adventures await at every turn.

Monthly Sunshine Duration in San Juan Vallarta: May Highlighted

The May sunshine duration represents the total number of hours San Juan Vallarta 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.
JanFebMarAprMayJunJulAugSepOctNovDec244h278h320h320h332h303h329h316h291h304h294h298h
Data source: San Juan Vallarta May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in San Juan Vallarta During May

As May rolls into San Juan Vallarta, the likelihood of sunny weather takes a noticeable dip, with only a 44% chance of sunshine gracing the beautiful coastal town. This marks a significant decline from the highs of 90% in February and 77% in March, as the region transitions from the dry season into the more humid months. Following May, anticipation of sunny days decreases even further, plummeting to just 9% by June. This trend highlights a seasonal shift, making May a transitional month where visitors can still enjoy the tail end of sunny opportunities before the summer rains begin to dominate the forecast.

Percentage of Sunny Days in May in San Juan Vallarta

The chart illustrates the percentage of sunny days in San Juan Vallarta 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 San Juan Vallarta experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec58%90%77%72%44%9%26%31%19%38%67%86%
Data source: San Juan Vallarta May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in San Juan Vallarta in May

In San Juan Vallarta, Mexico, the rhythm of daylight duration paints a captivating picture throughout the year. The year begins with consistent 11 hours of daylight in both January and February, gradually shifting towards longer days as March brings an increase to 12 hours. As spring unfolds into April, daylight remains steady at 12 hours, culminating in May, when the sun graces the skies for an impressive 13 hours—the peak of brightness. This generous daylight persists through June and July, ensuring ample time for beach strolls and sunset views. As summer wanes, daylight begins to contract slightly, with August and September returning to 12 hours, before gradually settling back to 11 hours from October through December. This natural ebb and flow of daylight not only enchants visitors but also highlights the region's beautiful transition through the seasons.

Average Daylight Hours in San Juan Vallarta for May

The chart illustrates the variation in daylight duration in San Juan Vallarta throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 8m11h 31m12h 2m12h 34m13h13h 13m13h 6m12h 43m12h 12m11h 41m11h 14m11h
Data source: San Juan Vallarta daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in San Juan Vallarta

In San Juan Vallarta, the winds of May usher in a gentle breeze, averaging 1.8 m/s (4 mph), slightly softer than the preceding months of January through April, which maintain a steady pace around 2.0 to 2.2 m/s. As the summer approaches, this subtle decline continues into June, where winds drop further to 1.5 m/s. The overall trend reveals that springtime winds are typically more vibrant, setting a dynamic atmosphere before settling into the calmer breezes of the summer. This seasonal transition not only enhances the coastal charm but also creates the perfect setting for leisurely seaside activities, inviting both locals and travelers to embrace the warm weather in a relaxed ambiance.

Average May Wind Speed in San Juan Vallarta

The chart displays monthly wind speed patterns in San Juan Vallarta, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.02.22.02.21.8 m/s1.51.61.51.51.71.91.9
Data source: San Juan Vallarta May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in San Juan Vallarta Compares to Other Months

The weather in San Juan Vallarta 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 San Juan Vallarta and find detailed weather information for every month.

May and January showcase stark contrasts in weather. In May, temperatures can soar with a minimum of 14°C (57°F) and highs reaching up to 35°C (95°F), making it significantly warmer on average at 23°C (74°F). However, it also brings about 131 mm (5.2 in) of precipitation over 17 days, along with a humidity level of 77%. In contrast, January experiences much cooler temperatures, with a minimum of 5°C (41°F) and a maximum of 30°C (86°F), averaging around 18°C (64°F). Additionally, January is relatively dry, receiving only 4 mm (0.2 in) of precipitation over just 1 day, although it has a slightly higher humidity of 84%. For a more detailed look at January’s conditions, visit San Juan Vallarta weather in January.

When comparing the weather in May and February, May tends to be warmer and more humid. With average temperatures ranging from a minimum of 14°C (57°F) to a maximum of 35°C (95°F), May is typically much hotter, featuring an average temperature of 23°C (74°F). In contrast, February sees cooler temperatures, with a minimum of 7°C (45°F) and a maximum of 31°C (88°F), leading to a milder average of 20°C (68°F). Additionally, May experiences significantly higher precipitation, totaling 131 mm (5.2 in) over 17 days, whereas February only receives 6 mm (0.2 in) over just 2 days. Both months share similar humidity levels, with February slightly higher at 78% compared to May's 77%. For a detailed look at February weather, visit San Juan Vallarta weather in February.

When comparing the weather in May and March, we see notable differences in temperature and precipitation patterns. In May, temperatures range from a minimum of 14°C (57°F) to a maximum of 35°C (95°F), with an average of 23°C (74°F). This month also experiences higher humidity at 77% and significantly more rainfall, totaling 131 mm (5.2 in) over 17 days. In contrast, March offers milder temperatures, with a minimum of 9°C (48°F) and a maximum of 34°C (93°F), averaging 22°C (71°F). Precipitation in March is considerably lower, with only 13 mm (0.5 in) over just 3 days, and humidity sits slightly lower at 75%. For a more detailed look at March weather, you can refer to San Juan Vallarta weather in March.

In comparing the weather of May and April, we see notable differences in temperature and precipitation. May typically experiences slightly warmer temperatures, with a minimum of 14°C (57°F) and a maximum of 35°C (95°F), while April has a lower minimum of 10°C (50°F) and a maximum of 34°C (93°F). Both months share the same average temperature of 23°C (74°F). However, May is significantly wetter, receiving 131 mm (5.2 in) of precipitation over 17 days, compared to April's 36 mm (1.4 in) over just 7 days. Humidity levels also rise in May to 77%, while April remains at 70%. For more details on April's weather in the region, visit San Juan Vallarta weather in April.

May and June present notable differences in weather patterns. In May, temperatures range from a minimum of 14°C (57°F) to a maximum of 35°C (95°F), with an average of 23°C (74°F). The month experiences a total precipitation of 131 mm (5.2 in) over 17 days, resulting in a humid atmosphere with levels at 77%. In contrast, June sees a slight decrease in average temperature at 22°C (71°F), but the maximum remains consistent at 35°C (94°F). However, June experiences significantly higher rainfall, with 277 mm (10.9 in) falling over 24 days, while humidity remains just a touch lower at 76%. For a more detailed look at the weather specifics in June, you can visit San Juan Vallarta weather in June.

In May, temperatures in San Juan Vallarta range from a minimum of 14°C (57°F) to a maximum of 35°C (95°F), with an average temperature of 23°C (74°F). The month experiences significant rainfall, with 131 mm (5.2 in) of precipitation over 17 days and a humidity level of 77%. In contrast, July sees slightly cooler conditions, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 32°C (91°F) and an average of 21°C (71°F). This month is wetter, receiving 198 mm (7.8 in) of rain across 22 days, although the humidity is somewhat lower at 68%. For a more detailed look at July weather, you can visit San Juan Vallarta weather in July.

May and August offer distinct weather patterns, reflecting the transition of seasons. In May, temperatures range from a minimum of 14°C (57°F) to a maximum of 35°C (95°F), with an average of 23°C (74°F). This month experiences 131 mm (5.2 in) of precipitation spread over 17 days, alongside relatively high humidity at 77%. In contrast, August sees slightly cooler temperatures, with a minimum of 13°C (55°F), an average of 21°C (71°F), and a maximum of 32°C (90°F). However, it is significantly wetter, receiving 254 mm (10.0 in) of rain over 25 days and a lower humidity level of 70%. For more detailed insights, check out San Juan Vallarta weather in August.

May typically offers warmer temperatures compared to September, with daily averages reaching 23°C (74°F) and maximums soaring to 35°C (95°F). In contrast, September experiences a cooler average of 21°C (69°F), peaking at 29°C (85°F). However, September is significantly wetter, receiving 314 mm (12.4 in) of precipitation over 26 days, while May has 131 mm (5.2 in) spread across 17 days. The humidity is also higher in September at 82%, compared to May's 77%. For more details, you can refer to this link: San Juan Vallarta weather in September.

May and October present distinctly different weather patterns. In May, temperatures can range from a minimum of 14°C (57°F) to a maximum of 35°C (95°F), with an average of 23°C (74°F), making it generally warmer. The month sees considerable humidity at 77% and about 131 mm (5.2 in) of precipitation over 17 days. In contrast, October experiences cooler temperatures, with a minimum of 9°C (49°F), an average of 20°C (69°F), and a maximum of 30°C (86°F). Although it is slightly drier with 120 mm (4.7 in) of precipitation over 16 days, humidity is higher at 91%. For a more detailed look at October's weather, check out San Juan Vallarta weather in October.

May and November exhibit distinct weather characteristics. In May, temperatures range from a minimum of 14°C (57°F) to a maximum of 35°C (95°F), with an average temperature of 23°C (74°F). This month experiences significant rainfall, with 131 mm (5.2 in) of precipitation over 17 days, and a humidity level of 77%. In contrast, November sees cooler temperatures, with a minimum of 9°C (48°F), an average of 19°C (67°F), and a maximum of 30°C (86°F). The precipitation level drops significantly to 36 mm (1.4 in) over just 5 days, accompanied by higher humidity at 89%. For more insights into November weather, check out San Juan Vallarta weather in November.

In May, the weather is characterized by warm temperatures, with a minimum of 14°C (57°F) and an average reaching up to 23°C (74°F), peaking at a maximum of 35°C (95°F). This month also experiences notable precipitation, with a total of 131 mm (5.2 in) spread over 17 days, resulting in a humidity level of 77%. In contrast, December offers a cooler climate, with temperatures ranging from a minimum of 5°C (41°F) to an average of 18°C (65°F) and a maximum of 29°C (85°F). Significantly drier than May, December sees just 4 mm (0.1 in) of precipitation over the course of the month, with no rainy days, and a higher humidity of 88%. For a detailed look at December's weather, you can visit San Juan Vallarta weather in December.

Compare San Juan Vallarta's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in San Juan Vallarta

As May unfolds in San Juan Vallarta, visitors can expect warmer temperatures compared to the earlier months, with a noticeable peak around 35°C (95°F) that invites beach-goers to enjoy the stunning coastline. This month also marks the transition into the wet season, resulting in increased rain, with precipitation occurring on about half the days, making it distinct from the generally drier months preceding it. The average humidity hovers at around 77%, adding a tropical feel as the landscapes become lush and vibrant. For a complete overview of what to expect throughout the year, check out the details on the San Juan Vallarta Climate.