May weather forecast
Mazatlán, Mexico

May sees a further spike in temperatures, taking the merit of being one of the hottest months of the year in Mazatlán with an average high of around 28.6°C (83.5°F). The significant rise in sea temperature also signifies that beach activities can accommodate longer hours. Citizens brace themselves for potent sunrays as daylight reaches its yearly high, around 13.3 hours. Due to the escalated humidity and temperatures, tropical beverages and savories become more popular during May. Despite the ever-present threat of a heatwave, the residents of Mazatlán relish the sunshine provided.

Temperature

The ushering in of May brings an average high-temperature of a still moderately hot 28.6°C (83.5°F), closely mirroring the 26.8°C (80.2°F) of April. Mazatlán's nighttime temperatures in May reveal a minimal variation from the daytime highs, averaging at a still warm 23.8°C (74.8°F).

Heat index

In May, the heat index is appraised at a tropical 31°C (87.8°F). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.
Heat index data is primarily for areas with shade and subjected to light winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

In May, the average relative humidity in Mazatlán is 63%.

Rainfall

Months with rainfall are January through March, May through December. May is the first month it rains. Throughout May, in the average 1.7 rainfall days, it receives 3mm (0.12") of precipitation. In Mazatlán, Mexico, during the entire year, the rain falls for 113.9 days and collects up to 454mm (17.87") of precipitation.

Sea temperature

In May, the average sea temperature in Mazatlán is 26.7°C (80.1°F).
Note: Water temperatures in the range of 25°C (77°F) to 29°C (84.2°F) are warm and delightful, ensuring comfort during water activities over extended periods.

Daylight

In Mazatlán, the average length of the day in May is 13h and 16min.
On the first day of May, sunrise is at 5:31 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 6:47 pm MST.

Sunshine

May has the most sunshine of the year, with an average of 11.8h of sunshine.

UV index

May through October, with an average maximum UV index of 7, are months with the highest UV index in Mazatlán. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: During May, 7 as the daily maximum UV index converts into the following advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.