May weather forecastHuatulco, Mexico
May
Weather in May
The last month of the spring, May, is another torrid month in Huatulco, Mexico, with an average temperature ranging between min 23°C (73.4°F) and max 35°C (95°F).An excellent water temperature of 29°C (84.2°F) and only 2 rainfall days, with 27mm (1.06") of accumulated rainfall, makes May a prime for swimming and other water activities.
Temperature
The temperature in Huatulco, Mexico, hits its peak in April, May and August, recording an average high-temperature of 35°C (95°F).Rainfall
In May, in Huatulco, Mexico, the rain falls for 2 days. Throughout May, 27mm (1.06") of precipitation is accumulated. Throughout the year, in Huatulco, there are 31 rainfall days, and 704mm (27.72") of precipitation is accumulated.Sea temperature
In Huatulco, in May, the average water temperature is 29°C (84.2°F).Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and other activities, ensuring comfort and enjoyment for lengthened periods.
Daylight
The average length of the day in May in Huatulco is 12h and 52min.On the first day of the month, sunrise is at 6:00 am and sunset at 6:43 pm. On the last day of May, sunrise is at 5:52 am and sunset at 6:53 pm CST.
Sunshine
In May, the average sunshine in Huatulco is 7h.UV index
The months with the highest UV index are March through September, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an excessive health risk from unprotected exposure to Sun's UV rays for the average person.Note: A maximum UV index of 12 in May translates into the following recommendations:
Implement every essential safety step. Individuals with fair skin might receive burns in less than 5 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Huatulco, Mexico
- Average high temperature in May: 35°C
The warmest months (with the highest average high temperature) are April, May and August (35°C).
The months with the lowest average high temperature are January, February, November and December (33°C).
- Average low temperature in May: 23°C
The months with the highest average low temperature are May and June (23°C).
The coldest months (with the lowest average low temperature) are January, February and December (19°C).
Average rainfall in May
Huatulco, Mexico
- Average rainfall in May: 27mm
The wettest month (with the highest rainfall) is June (176mm).
The driest months (with the least rainfall) are February, March, April and December (1mm).
Average rainfall days in May
Huatulco, Mexico
- Average rainfall days in May: 2 days
The months with the highest number of rainy days are June and September (7 days).
The months with the least rainy days are January, February, March, April, November and December (0 days).
Average sea temperature in May
Huatulco, Mexico
- Average sea temperature in May: 29°C
The best months for swimming (with the highest average sea temperature) are June, July and August (30°C).
The coldest months (with the lowest average sea temperature) are January, February and December (27°C).
Average daylight in May /
Average sunshine in May
Huatulco, Mexico
- Average daylight in May: 12h and 54min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in May: 7h
The months with the most sunshine are February and March (Average sunshine: 9h).
The month with the least sunshine is September (Average sunshine: 5h).
Average UV index in May
Huatulco, Mexico
- Average UV index in May: 12
The months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 8).





