Climate and monthly weather forecast
San Fernando, CA

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Weather in January

January, the same as December, is another enjoyable winter month in San Fernando, California, with an average temperature ranging between max 63.1°F (17.3°C) and min 47.8°F (8.8°C). San Fernando's average high-temperature marks a still enjoyable 63.1°F (17.3°C) with the advent of January, closely mirroring that of the preceding month. Weather in January »

Weather in February

The last month of the winter, February, is also an enjoyable month in San Fernando, California, with an average temperature fluctuating between 63°F (17.2°C) and 46.4°F (8°C). San Fernando's average high-temperature in February is a still refreshing 63°F (17.2°C), indicating a subtle variation from January. Weather in February »

Weather in March

March, the first month of the spring in San Fernando, is also an enjoyable month, with an average temperature fluctuating between 48.2°F (9°C) and 66.6°F (19.2°C). San Fernando experiences a transition to a still refreshing 66.6°F (19.2°C) in average high-temperatures with the arrival of March, not greatly differing from February's 63°F (17.2°C). Weather in March »

Weather in April

April in San Fernando, California, is an agreeable spring month, with temperature in the range of an average high of 70.3°F (21.3°C) and an average low of 50.5°F (10.3°C). April welcomes an average high-temperature of a pleasant 70.3°F (21.3°C), not much different from the preceding month. Weather in April »

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). 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. Weather in May »

Weather in June

June, the first month of the summer in San Fernando, is also a moderately hot month, with an average temperature ranging between max 79.3°F (26.3°C) and min 58.6°F (14.8°C). Observing a minor shift, the average high-temperature during June adjusts from May's moderately hot 73.8°F (23.2°C) to a still warm 79.3°F (26.3°C). Weather in June »

Weather in July

July, like June, in San Fernando, California, is a moderately hot summer month, with an average temperature fluctuating between 64°F (17.8°C) and 84.2°F (29°C). San Fernando's weather in July, with an average high-temperature of a still moderately hot 84.2°F (29°C), subtly shifts from June's 79.3°F (26.3°C). Weather in July »

Weather in August

August, the last month of the summer in San Fernando, is another warm month, with an average temperature varying between 85.8°F (29.9°C) and 64.9°F (18.3°C). San Fernando records the warmest temperatures in August, averaging a high of 85.8°F (29.9°C) and a low of 64.9°F (18.3°C). For most parts of August, the heat index is computed to be a hot 87.8°F (31°C). Weather in August »

Weather in September

September, the first month of the autumn in San Fernando, is still a warm month, with temperature in the range of an average high of 83.1°F (28.4°C) and an average low of 62.6°F (17°C). The transition into September notes an average high-temperature of a still moderately hot 83.1°F (28.4°C), revealing a mild distinction from the 85.8°F (29.9°C) in August. Weather in September »

Weather in October

October, like September, in San Fernando, California, is a moderately hot autumn month, with an average temperature varying between 76.5°F (24.7°C) and 58.5°F (14.7°C). San Fernando records a mild change in average high-temperature during October, easing from a warm 83.1°F (28.4°C) in September to a still moderately hot 76.5°F (24.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is another pleasant month in San Fernando, California, with an average temperature varying between 52.3°F (11.3°C) and 69.4°F (20.8°C). Start of November brings a slight shift in the average high-temperature, dipping a bit from October's warm 76.5°F (24.7°C) to a pleasant 69.4°F (20.8°C). Weather in November »

Weather in December

December, the first month of the winter in San Fernando, is still a refreshing month, with an average temperature ranging between min 46.2°F (7.9°C) and max 61.7°F (16.5°C). With average temperatures fluctuating between a high of 61.7°F (16.5°C) and a low of 46.2°F (7.9°C), December stands out as the coldest month. Weather in December »
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How much does it rain?

Throughout the year, there are 39.8 rainfall days, and 7.52" (191mm) of precipitation is accumulated.

What is the month with the least sunshine?

The months with the least sunshine are January, February and December, with an average of 6.8h of sunshine.

What is the rainiest month?

February is the month with the most rainfall. Rain falls for 4.8 days and accumulates 1.54" (39mm) of precipitation.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.

What is the most humid month?

June is the most humid month, with an average relative humidity of 58%.

What is the driest month?

The only month without rainfall in San Fernando is June.

When are the longest days?

With an average of 14h and 24min of daylight, June has the longest days of the year.

What is the month with the most sunshine?

June and July, with an average of 12.1h of sunshine, are months with the most sunshine.

When is the highest UV index?

June through September, with an average maximum UV index of 6, are months with the highest UV index.

When does it rain?

January through May, July through December are months with rainfall in San Fernando, California.

What is the warmest month?

August tends to be the warmest month, with temperatures averaging a daily high of 85.8°F (29.9°C) and a low of 64.9°F (18.3°C).

What is the least humid month?

The least humid month is November, with an average relative humidity of 47%.

What is the coldest month?

December is the coldest month, with an average high-temperature of 61.7°F (16.5°C) and an average low-temperature of 46.2°F (7.9°C).

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 54min of daylight.

What is the month with the lowest UV index?

With an average maximum UV index of 3, December is the month with the lowest UV index.

Average temperature
San Fernando, CA

Average temperature - San Fernando, CA

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).

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
San Fernando, CA

Average pressure - San Fernando, CA

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
San Fernando, CA

Average wind speed - San Fernando, CA

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
San Fernando, CA

Average humidity - San Fernando, CA

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

Average rainfall
San Fernando, CA

Average rainfall - San Fernando, CA

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

Average rainfall days
San Fernando, CA

Average rainfall days - San Fernando, CA

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 / Average sunshine
San Fernando, CA

Average daylight / Average sunshine - San Fernando, CA

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).

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
San Fernando, CA

Average sunshine days - San Fernando, CA

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
San Fernando, CA

Average UV index - San Fernando, CA

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 visibility
San Fernando, CA

Average visibility - San Fernando, CA

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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