May weather forecastAltamira, Mexico
May
Weather in May
May, the last month of the spring in Altamira, is a hot month, with an average temperature fluctuating between 24.8°C (76.6°F) and 30.5°C (86.9°F).Temperature
Altamira's weather, upon May's arrival, documents an average high-temperature of a hot 30.5°C (86.9°F), nearly identical to the prior month. The nighttime temperature in Altamira dips to a warm 24.8°C (76.6°F) on average during May.Heat index
May's average heat index is evaluated at a sweltering 38°C (100.4°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.Understand that the heat index values take into account shaded locations and mild winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
The average relative humidity in May is 75%.Rainfall
In Altamira, during May, the rain falls for 9 days and regularly aggregates up to 16mm (0.63") of precipitation. In Altamira, during the entire year, the rain falls for 154.6 days and collects up to 541mm (21.3") of precipitation.Daylight
In Altamira, the average length of the day in May is 13h and 13min.On the first day of May, sunrise is at 5:58 am and sunset at 6:58 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 7:11 pm CST.
Sunshine
The average sunshine in May is 10.7h.UV index
April through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In May, the UV index of 7 transforms into the following advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Altamira, Mexico
- Average high temperature in May: 30.5°C
The warmest month (with the highest average high temperature) is August (31.8°C).
The month with the lowest average high temperature is January (22.8°C).
- Average low temperature in May: 24.8°C
The month with the highest average low temperature is June (25.9°C).
The coldest month (with the lowest average low temperature) is January (16.8°C).
Average pressure in May
Altamira, Mexico
- Average pressure in May: 1011.7mbar
The month with the highest atmospheric pressure is January (1019.2mbar).
The months with the lowest atmospheric pressure are May and June (1011.7mbar).
Average wind speed in May
Altamira, Mexico
- Average wind speed in May: 15.6km/h
The windiest months (with the highest average wind speed) are April and May (15.6km/h).
The calmest month (with the lowest average wind speed) is September (12.5km/h).
Average humidity in May
Altamira, Mexico
- Average humidity in May: 75%
The month with the highest relative humidity is February (77%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in May
Altamira, Mexico
- Average rainfall in May: 16mm
The wettest month (with the highest rainfall) is September (130mm).
The driest month (with the least rainfall) is April (7mm).
Average rainfall days in May
Altamira, Mexico
- Average rainfall days in May: 9 days
The month with the highest number of rainy days is September (23.3 days).
The month with the least rainy days is April (5.7 days).
Average daylight in May /
Average sunshine in May
Altamira, Mexico
- Average daylight in May: 13h and 12min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in May: 10h and 42min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in May
Altamira, Mexico
- Average sunshine days in May: 19.9 days
The month with the most sunshine days is April (23.5 days).
The month with the least sunshine days is September (5.8 days).
Average UV index in May
Altamira, Mexico
- Average UV index in May: 7
The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February and December (UV index 5).
Average cloud cover in May
Altamira, Mexico
- Average cloud cover in May: 26
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in May
Altamira, Mexico
- Average visibility in May: 10km
The months with the highest visibility are January, February, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is March (9km).





