nomadseason

May Weather in Arroyo Grande, Mexico

Last updated: August 26, 2025

In Arroyo Grande, Mexico, the average temperature in May soars to a warm 29°C (84°F), with lows dipping to 18°C (65°F) and highs peaking at a steamy 39°C (103°F). Expect 31 mm (1.2 in) of precipitation spread over 5 days, and a comfortable average humidity of 75% that adds to the area's tropical feeling.

May Temperature in Arroyo Grande

In May in Arroyo Grande, the average temperature is 29°C (84°F). Maximums can reach 39°C (103°F) and minimums can be as low as 18°C (65°F). Be prepared for warm days and mild evenings, making it an ideal time for outdoor activities and exploring the local attractions.

May Weather in Arroyo Grande: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Arroyo Grande, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arroyo Grande, May typically has an average temperature of 29°C (84°F), with highs reaching up to 39°C (103°F) and lows dropping to around 18°C (65°F).
JanFebMarAprMayJunJulAugSepOctNovDec757781828481797978787774
Data source: Temperature data for Arroyo Grande 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 Arroyo Grande

In Arroyo Grande in May, the precipitation amount is 31 mm (1.2 in) spread over 5 days.

May Precipitation Trends in Arroyo Grande

The chart displays monthly precipitation patterns in Arroyo Grande, 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 Arroyo Grande, May typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec442132172178231227146355
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Arroyo Grande

In Arroyo Grande in May, humidity is 75%. With an average temperature of 29°C (84°F), this humidity feels like a heavy blanket enveloping you, making outdoor activities quite sweaty and challenging for traveling.

May Average Humidity in Arroyo Grande

This chart illustrates the average monthly humidity levels in Arroyo Grande, 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 Arroyo Grande 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 Arroyo Grande

In Arroyo Grande 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 Arroyo Grande, you can check here.

Maximum UV Index Levels in Arroyo Grande for May

The chart shows the monthly maximum UV Index (UVI) for Arroyo Grande 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 Arroyo Grande typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131314141413131188
Data source: Arroyo Grande 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 Arroyo Grande Compares to Other Months

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

This table compares monthly weather conditions in Arroyo Grande, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)4 mm (0.2 inches)70%very high
February Weather25°C (77°F)4 mm (0.2 inches)64%extreme
March Weather27°C (81°F)2 mm (0.1 inches)54%extreme
April Weather28°C (83°F)1 mm (0.0 inches)61%extreme
May Weather29°C (84°F)31 mm (1.2 inches)75%extreme
June Weather27°C (81°F)172 mm (6.8 inches)83%extreme
July Weather26°C (80°F)177 mm (7.0 inches)83%extreme
August Weather26°C (79°F)231 mm (9.1 inches)85%extreme
September Weather26°C (78°F)227 mm (8.9 inches)85%extreme
October Weather26°C (78°F)146 mm (5.8 inches)79%extreme
November Weather25°C (77°F)35 mm (1.4 inches)76%very high
December Weather24°C (75°F)5 mm (0.2 inches)74%very high

Compare Arroyo Grande's Climate with Cities Worldwide