May weather forecastTierrasanta, CA

May

Weather in May

May, the last month of the spring in Tierrasanta, is a pleasant month, with an average temperature ranging between max 68.7°F (20.4°C) and min 55.6°F (13.1°C).

Temperature

Tierrasanta marks the start of May with an average high-temperature of an agreeable 68.7°F (20.4°C), hinting at a slight fluctuation from April's 67.5°F (19.7°C). Throughout the nights in May, Tierrasanta experiences an average low-temperature of 55.6°F (13.1°C).

Humidity

May and June, with an average relative humidity of 71%, are the most humid months.

Rainfall

In Tierrasanta, in May, during 4.8 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. In Tierrasanta, during the entire year, the rain falls for 57.9 days and collects up to 7.48" (190mm) of precipitation.

Daylight

In Tierrasanta, the average length of the day in May is 13h and 52min.
On the first day of the month, sunrise is at 6:00 am and sunset at 7:30 pm. On the last day of May, sunrise is at 5:41 am and sunset at 7:51 pm PDT.

Sunshine

In Tierrasanta, the average sunshine in May is 10.9h.

UV index

In Tierrasanta, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: In May, the maximum UV index of 5 suggests this advice:
Exercise prevention - Precautions against solar damage are endorsed. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

Updated: Aug 1, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in May, in Tierrasanta, is 68.7°F (20.4°C), while the average low-temperature is 55.6°F (13.1°C).

The months with the highest humidity are May and June, with an average relative humidity of 71%.

In Tierrasanta, the average relative humidity in May is 71%.

In Tierrasanta, during May, the rain falls for 4.8 days and regularly aggregates up to 0.31" (8mm) of precipitation.

In Tierrasanta, the average day length in May is 13h and 52min.

In May, on the first day of the month, 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.

In May, the average sunshine duration is 10.9h.

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

67.5°F

68.7°F

72.5°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

6.7mph

6.6mph

6mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

21.9

21.8

Average UV index

Average cloud cover

21%

12%

Average visibility

6mi

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 54min

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 54min

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).