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May Weather in Santa Rosa (Santa Barbara), Mexico

Last updated: August 27, 2025

The average temperature in Santa Rosa (Santa Barbara), Mexico during May is a comfortable 19°C (66°F). With a minimum of 7°C (45°F) and a maximum reaching 30°C (86°F), this pleasant climate is complemented by an average humidity of 75%. However, be prepared for some rain, as precipitation can total 128 mm (5.0 in) over 15 days.

May Temperature in Santa Rosa (Santa Barbara)

In May in Santa Rosa (Santa Barbara), the average temperature is 19°C (66°F). The maximum can reach 30°C (86°F), and the minimum can be as low as 7°C (45°F). This pleasant climate makes it an ideal time for outdoor activities and exploring the local attractions.

May Weather in Santa Rosa (Santa Barbara): Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Santa Rosa (Santa Barbara), showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Rosa (Santa Barbara), May typically has an average temperature of 19°C (66°F), with highs reaching up to 30°C (86°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec565861646564636363625956
Data source: Temperature data for Santa Rosa (Santa Barbara) 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 Santa Rosa (Santa Barbara)

In Santa Rosa (Santa Barbara) in May, the precipitation amount is 128 mm (5.0 in) over the course of 15 days.

May Precipitation Trends in Santa Rosa (Santa Barbara)

The chart displays monthly precipitation patterns in Santa Rosa (Santa Barbara), 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. In Santa Rosa (Santa Barbara), May typically receives around 128 mm (5.0 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec253432171282883613833321997319
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Santa Rosa (Santa Barbara)

In Santa Rosa (Santa Barbara) in May humidity is 75%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making it slightly uncomfortable for traveling as you navigate through the thick, muggy air.

May Average Humidity in Santa Rosa (Santa Barbara)

This chart illustrates the average monthly humidity levels in Santa Rosa (Santa Barbara), with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Santa Rosa (Santa Barbara) is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%64%54%61%75%83%83%85%85%79%76%75%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Santa Rosa (Santa Barbara)

In Santa Rosa (Santa Barbara) in May, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Santa Rosa (Santa Barbara), you can check here.

Maximum UV Index Levels in Santa Rosa (Santa Barbara) for May

The chart shows the monthly maximum UV Index (UVI) for Santa Rosa (Santa Barbara) 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. In May, the maximum UV index in Santa Rosa (Santa Barbara) typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121415141514141412109
Data source: Santa Rosa (Santa Barbara) 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.

How May Weather in Santa Rosa (Santa Barbara) Compares to Other Months

Weather in Santa Rosa (Santa Barbara) varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Santa Rosa (Santa Barbara), focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Santa Rosa (Santa Barbara), showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (56°F)25 mm (1.0 inches)70%very high
February Weather14°C (58°F)34 mm (1.3 inches)64%extreme
March Weather16°C (62°F)32 mm (1.2 inches)54%extreme
April Weather18°C (64°F)17 mm (0.7 inches)61%extreme
May Weather19°C (66°F)128 mm (5.0 inches)75%extreme
June Weather18°C (65°F)288 mm (11.4 inches)83%extreme
July Weather17°C (63°F)361 mm (14.2 inches)83%extreme
August Weather17°C (64°F)383 mm (15.1 inches)85%extreme
September Weather17°C (63°F)332 mm (13.1 inches)85%extreme
October Weather17°C (63°F)199 mm (7.8 inches)79%extreme
November Weather15°C (60°F)73 mm (2.9 inches)76%very high
December Weather14°C (57°F)19 mm (0.7 inches)74%very high

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