Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
San Mateo's average high-temperature marks a tropical 86.4°F (30.2°C) with the advent of May, closely mirroring that of the preceding month. Throughout the May nights, San Mateo encounters a low-temperature of 67.3°F (19.6°C).Heat index
For May, the heat index is evaluated at a fiery hot 96.8°F (36°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.Observations indicate that the heat index values are for shady locations with light wind. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
The average relative humidity in May is 72%.Rainfall
In San Mateo, in May, it is raining for 10.7 days, with typically 0.91" (23mm) of accumulated precipitation. In San Mateo, during the entire year, the rain falls for 138.3 days and collects up to 12.76" (324mm) of precipitation.Snowfall
February through December are months without snowfall in San Mateo, Florida.Daylight
The average length of the day in May is 13h and 39min.On the first day of the month, sunrise is at 6:43 am and sunset at 8:03 pm. On the last day of May, in San Mateo, Florida, sunrise is at 6:26 am and sunset at 8:21 pm EDT.
Sunshine
The average sunshine in May in San Mateo, Florida, is 10.6h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 7 in May leads to these recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
How hot is it in San Mateo in May?
What is the average humidity in May in San Mateo?
How many days does it rain in May in San Mateo?
When it does not snow in San Mateo?
What is the average length of the day in May in San Mateo?
What time are sunrise and sunset in May in San Mateo?
How many hours of sunshine does San Mateo have in May?
When is the highest UV index in San Mateo?
How high is the UV index in May in San Mateo?
Average temperature in May
San Mateo, FL
- Average high temperature in May: 86.4°F
The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is January (65.8°F).
- Average low temperature in May: 67.3°F
The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (48.2°F).
Average pressure in May
San Mateo, FL
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in May
San Mateo, FL
- Average wind speed in May: 5.2mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).
Average humidity in May
San Mateo, FL
- Average humidity in May: 72%
The months with the highest relative humidity are August, September and December (77%).
The month with the lowest relative humidity is March (70%).
Average rainfall in May
San Mateo, FL
- Average rainfall in May: 0.91"
The wettest month (with the highest rainfall) is July (2.09").
The driest month (with the least rainfall) is March (0.47").
Average rainfall days in May
San Mateo, FL
- Average rainfall days in May: 10.7 days
The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is November (6.7 days).
Average snowfall days in May
San Mateo, FL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in May /
Average sunshine in May
San Mateo, FL
- Average daylight in May: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in May: 10h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in May
San Mateo, FL
- Average sunshine days in May: 17.9 days
The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in May
San Mateo, FL
- Average UV index in May: 7
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in May
San Mateo, FL
- Average cloud cover in May: 30
The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are May and July (Cloud cover 30).
Average visibility in May
San Mateo, FL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
San Mateo, Florida, USA
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