May weather forecastSan Alejo, Mexico
May
Weather in May
May, the last month of the spring in San Alejo, is also a hot month, with an average temperature ranging between max 31.6°C (88.9°F) and min 18.3°C (64.9°F).Temperature
San Alejo sees the arrival of May with an average high-temperature of a still tropical 31.6°C (88.9°F), indicating a subtle variation from April. San Alejo registers a significant drop in temperature in May, with average nighttime lows of 18.3°C (64.9°F).Heat index
May's heat index is computed to be a tropical 34°C (93.2°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Research indicates the heat index considers values in shaded locales and with light winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humidity
The average relative humidity in May in San Alejo, Mexico, is 50%.Rainfall
In San Alejo, Mexico, in May, during 17.3 rainfall days, 91mm (3.58") of precipitation is typically accumulated. Throughout the year, there are 187.6 rainfall days, and 1136mm (44.72") of precipitation is accumulated.Daylight
The average length of the day in May in San Alejo, Mexico, is 13h and 2min.On the first day of May in San Alejo, sunrise is at 6:10 am and sunset at 7:01 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:12 pm CST.
Sunshine
The months with the most sunshine in San Alejo are January, February, April, May and December, with an average of 9.8h of sunshine.UV index
February through May and July, with an average maximum UV index of 6, are months with the highest UV index in San Alejo. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 6 in May translates into the following instructions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
San Alejo, Mexico
- Average high temperature in May: 31.6°C
The warmest month (with the highest average high temperature) is April (32.1°C).
The month with the lowest average high temperature is December (24.8°C).
- Average low temperature in May: 18.3°C
The month with the highest average low temperature is May (18.3°C).
The coldest month (with the lowest average low temperature) is January (11.6°C).
Average pressure in May
San Alejo, Mexico
- Average pressure in May: 1013.2mbar
The month with the highest atmospheric pressure is January (1016.5mbar).
The month with the lowest atmospheric pressure is May (1013.2mbar).
Average wind speed in May
San Alejo, Mexico
- Average wind speed in May: 5.3km/h
The windiest month (with the highest average wind speed) is April (6km/h).
The calmest months (with the lowest average wind speed) are August and September (4.6km/h).
Average humidity in May
San Alejo, Mexico
- Average humidity in May: 50%
The month with the highest relative humidity is September (81%).
The month with the lowest relative humidity is April (36%).
Average rainfall in May
San Alejo, Mexico
- Average rainfall in May: 91mm
The wettest month (with the highest rainfall) is June (212mm).
The driest month (with the least rainfall) is December (6mm).
Average rainfall days in May
San Alejo, Mexico
- Average rainfall days in May: 17.3 days
The month with the highest number of rainy days is August (29 days).
The month with the least rainy days is January (4.2 days).
Average daylight in May /
Average sunshine in May
San Alejo, Mexico
- Average daylight in May: 13h and 0min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in May: 9h and 48min
The months with the most sunshine are January, February, April, May and December (Average sunshine: 9h and 48min).
The month with the least sunshine is November (Average sunshine: 8h and 36min).
Average sunshine days in May
San Alejo, Mexico
- Average sunshine days in May: 10.3 days
The month with the most sunshine days is January (25.3 days).
The month with the least sunshine days is August (0.8 days).
Average UV index in May
San Alejo, Mexico
- Average UV index in May: 6
The months with the highest UV index are February, March, April, May and July (UV index 6).
The months with the lowest UV index are January, June, August, September, October, November and December (UV index 5).
Average cloud cover in May
San Alejo, Mexico
- Average cloud cover in May: 19
The month with the most cloud cover is September (Cloud cover 38).
The months with the least cloud cover are February, March, April and December (Cloud cover 11).
Average visibility in May
San Alejo, Mexico
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, November and December (10km).
The month with the lowest visibility is September (8km).





