May weather forecast
San Fernando, CA

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Weather in May

The last month of the spring, May, is a warm month in San Fernando, California, with an average temperature ranging between min 54.5°F (12.5°C) and max 73.8°F (23.2°C).

Temperature

San Fernando records an average high-temperature of a moderately hot 73.8°F (23.2°C) in May, closely mirroring the climate of the previous month. During May, the nighttime temperature averages of 54.5°F (12.5°C).

Humidity

In May, the average relative humidity is 57%.

Rainfall

May is the last month it rains. During 1.8 rainfall days, in May, San Fernando aggregates 0.2" (5mm) of precipitation. Throughout the year, there are 39.8 rainfall days, and 7.52" (191mm) of precipitation is accumulated.

Daylight

The average length of the day in May is 13h and 58min.
On the first day of the month, sunrise is at 6:03 am and sunset at 7:38 pm. On the last day of May, sunrise is at 5:42 am and sunset at 8:00 pm PDT.

Sunshine

In May, the average sunshine in San Fernando is 11.6h.

UV index

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In May, the maximum UV index of 5 suggests these recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

The high-temperature, in May, in San Fernando, is 73.8°F (23.2°C), while the low-temperature averages to 54.5°F (12.5°C).

What is the average humidity in May?

In May, the average relative humidity is 57%.

What is the last month it rains?

May is the last month it rains. During 1.8 rainfall days, in May, San Fernando aggregates 0.2" (5mm) of precipitation.

What is the average length of the day in May?

The average day length in May is 13h and 58min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:03 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:00 pm PDT.

How many hours of sunshine does San Fernando have in May?

The average sunshine duration in May is 11.6h.

How high is the UV index in May?

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
San Fernando, CA

Average temperature in May - San Fernando, CA
  • Average high temperature in May: 73.8°F

The warmest month (with the highest average high temperature) is August (85.8°F).
The month with the lowest average high temperature is December (61.7°F).

  • Average low temperature in May: 54.5°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is December (46.2°F).

Average pressure in May
San Fernando, CA

Average pressure in May - San Fernando, CA
  • Average pressure in May: 29.93"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in May
San Fernando, CA

Average wind speed in May - San Fernando, CA
  • Average wind speed in May: 5.6mph

The windiest months (with the highest average wind speed) are January and December (6.2mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

Average humidity in May
San Fernando, CA

Average humidity in May - San Fernando, CA
  • Average humidity in May: 57%

The month with the highest relative humidity is June (58%).
The month with the lowest relative humidity is November (47%).

Average rainfall in May
San Fernando, CA

Average rainfall in May - San Fernando, CA
  • Average rainfall in May: 0.2"

The wettest month (with the highest rainfall) is February (1.54").
The driest month (with the least rainfall) is June (0").

Average rainfall days in May
San Fernando, CA

Average rainfall days in May - San Fernando, CA
  • Average rainfall days in May: 1.8 days

The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (0.8 days).

Average daylight in May /
Average sunshine in May
San Fernando, CA

Average daylight in May / Average sunshine in May - San Fernando, CA
  • Average daylight in May: 14h and 0min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in May: 11h and 4min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).

Average sunshine days in May
San Fernando, CA

Average sunshine days in May - San Fernando, CA
  • Average sunshine days in May: 28.8 days

The month with the most sunshine days is May (28.8 days).
The month with the least sunshine days is February (22.9 days).

Average UV index in May
San Fernando, CA

Average UV index in May - San Fernando, CA
  • Average UV index in May: 5

The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in May
San Fernando, CA

Average cloud cover in May - San Fernando, CA
  • Average cloud cover in May: 13

The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 4).

Average visibility in May
San Fernando, CA

Average visibility in May - San Fernando, 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).

San Fernando, California, USA

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