May weather forecast
Tomatlán, Mexico

May, the last month of the spring in Tomatlán, is another tropical month, with an average temperature fluctuating between 32.4°C (90.3°F) and 21.2°C (70.2°F).

Temperature

In Tomatlán, May and July are characterised by the peak of temperatures, recording an average high of 32.4°C (90.3°F).

Heat index

May's heat index is appraised at a sweltering 39°C (102.2°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In May, the average relative humidity in Tomatlán, Mexico, is 62%.

Rainfall

January through March, May through December are months with rainfall. May is the first month it rains. Throughout May, in the average 2.8 rainfall days, it receives 6mm (0.24") of precipitation. In Tomatlán, during the entire year, the rain falls for 112.5 days and collects up to 565mm (22.24") of precipitation.

Daylight

In Tomatlán, Mexico, the average length of the day in May is 13h and 5min.
On the first day of May, sunrise is at 6:31 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 7:36 pm CST.

Sunshine

The months with the most sunshine are January, March through May, with an average of 9.8h of sunshine.

UV index

April through October, with an average maximum UV index of 7, are months with the highest UV index in Tomatlán. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high daily UV index of 7 during May translates into the following directions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.