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 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
The unfolding of May shows an average high-temperature of a pleasant 68.7°F (20.4°C), indicating a slight variance from April's 67.5°F (19.7°C). Tierrasanta's nights in May cool down to an average low-temperature of 55.6°F (13.1°C).Humidity
The months with the highest humidity are May and June, with an average relative humidity of 71%.Rainfall
In Tierrasanta, in May, during 4.8 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. Throughout the year, there are 57.9 rainfall days, and 7.48" (190mm) of precipitation is accumulated.Daylight
In Tierrasanta, the average length of the day in May is 13h and 52min.On the first day of May, sunrise is at 6:00 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 7:51 pm PDT.
Sunshine
The average sunshine in May is 10.9h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum daily UV index of 5 during May morphs into the following directions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Tierrasanta?
What are the most humid months?
What is the average humidity in May?
How many days does it rain in May?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How long on average sun shines in May in Tierrasanta?
What is the UV index reading in May?
Average temperature in May
Tierrasanta, CA
- Average high temperature in May: 68.7°F
The warmest month (with the highest average high temperature) is August (79.3°F).
The month with the lowest average high temperature is December (63.5°F).
- Average low temperature in May: 55.6°F
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (50.2°F).
Average pressure in May
Tierrasanta, CA
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed in May
Tierrasanta, CA
- Average wind speed in May: 5.9mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).
Average humidity in May
Tierrasanta, CA
- Average humidity in May: 71%
The months with the highest relative humidity are May and June (71%).
The month with the lowest relative humidity is November (57%).
Average rainfall in May
Tierrasanta, CA
- Average rainfall in May: 0.31"
The wettest month (with the highest rainfall) is February (1.46").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in May
Tierrasanta, CA
- Average rainfall days in May: 4.8 days
The month with the highest number of rainy days is March (7.1 days).
The month with the least rainy days is June (2.2 days).
Average daylight in May /
Average sunshine in May
Tierrasanta, CA
- Average daylight in May: 13h and 5min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in May: 10h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in May
Tierrasanta, CA
- Average sunshine days in May: 21.9 days
The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is February (20.2 days).
Average UV index in May
Tierrasanta, CA
- Average UV index in May: 5
The months with the highest UV index are July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in May
Tierrasanta, CA
- Average cloud cover in May: 21
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in May
Tierrasanta, CA
- 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).
Tierrasanta, California, USA
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