Seal Beach
California, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Seal Beach, CA

January, like December, in Seal Beach, California, is another enjoyable winter month, with average temperature varying between 53.6°F (12°C) and 64.6°F (18.1°C). In Seal Beach, California, the average high-temperature in January is practically the same as in December - a still comfortable 64.6°F (18.1°C). Weather in January »

The last month of the winter, February, is also an enjoyable month in Seal Beach, California, with average temperature ranging between max 63.5°F (17.5°C) and min 52.7°F (11.5°C). In February, the average high-temperature is almost the same as in January - a still enjoyable 63.5°F (17.5°C). Weather in February »

March, the first month of the spring, in Seal Beach, is also an enjoyable month, with temperature in the range of an average low of 53.6°F (12°C) and an average high of 65.3°F (18.5°C). In March, the average high-temperature is essentially the same as in February - a still enjoyable 65.3°F (18.5°C). Weather in March »

April, like March, in Seal Beach, California, is another comfortable spring month, with average temperature fluctuating between 55.4°F (13°C) and 67.1°F (19.5°C). In Seal Beach, the average high-temperature in April is relatively the same as in March - a still comfortable 67.1°F (19.5°C). Weather in April »

May, the last month of the spring, in Seal Beach, is an agreeable month, with average temperature fluctuating between 68.2°F (20.1°C) and 57.4°F (14.1°C). In Seal Beach, the average high-temperature in May is practically the same as in April - a pleasant 68.2°F (20.1°C). Weather in May »

June, the first month of the summer, in Seal Beach, is also an agreeable month, with average temperature fluctuating between 71.2°F (21.8°C) and 59.5°F (15.3°C). In Seal Beach, the average high-temperature is practically the same as in May - a still pleasant 71.2°F (21.8°C). Weather in June »

July is a warm summer month in Seal Beach, California, with average temperature fluctuating between 75.6°F (24.2°C) and 63.1°F (17.3°C). In Seal Beach, the average high-temperature in July is almost the same as in June - a warm 75.6°F (24.2°C). Weather in July »

The last month of the summer, August, is another warm month in Seal Beach, California, with temperature in the range of an average high of 77.4°F (25.2°C) and an average low of 65.3°F (18.5°C). The warmest month is August, with an average high-temperature of 77.4°F (25.2°C) and an average low-temperature of 65.3°F (18.5°C). Weather in August »

The first month of the autumn, September, is still a warm month in Seal Beach, California, with average temperature varying between 64.6°F (18.1°C) and 77°F (25°C). In September, the average high-temperature is almost the same as in August - a still moderately hot 77°F (25°C). Weather in September »

October, the same as September, is another warm autumn month in Seal Beach, California, with average temperature ranging between min 62.1°F (16.7°C) and max 73.8°F (23.2°C). In Seal Beach, the average high-temperature in October is practically the same as in September - a still moderately hot 73.8°F (23.2°C). Weather in October »

The last month of the autumn, November, is also an agreeable month in Seal Beach, California, with temperature in the range of an average high of 68.9°F (20.5°C) and an average low of 58.3°F (14.6°C). In Seal Beach, the average high-temperature is relatively the same as in October - an agreeable 68.9°F (20.5°C). Weather in November »

December, the first month of the winter, in Seal Beach, is also an enjoyable month, with average temperature varying between 62.8°F (17.1°C) and 53.4°F (11.9°C). December is the coldest month, with an average high-temperature of 62.8°F (17.1°C) and an average low-temperature of 53.4°F (11.9°C). Weather in December »

How many days does it rain in Seal Beach?

In Seal Beach, during the entire year, the rain falls for 57.8 days and collects up to 8.82" (224mm) of precipitation.

What is the month with the coldest ocean in Seal Beach?

The month with the coldest seawater is January, with an average ocean temperature of 58.3°F (14.6°C).

What are the months with the lowest UV index in Seal Beach?

Months with the lowest UV index are January through March, November and December, with an average maximum UV index of 4.

What is the most humid month in Seal Beach?

The most humid month is June, with an average relative humidity of 73%.

What is the driest month in Seal Beach?

June is the month with the least rainfall. Rain falls for 2.3 days and accumulates 0.04" (1mm) of precipitation.

When are the longest days in Seal Beach?

June has the longest days of the year in Seal Beach, with an average of 14.4h of daylight.

What are the months with the warmest ocean in Seal Beach?

July and August, with an average ocean temperature of 67.8°F (19.9°C), are months with the warmest seawater in Seal Beach.

What are the months with the highest UV index in Seal Beach?

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

What is the warmest month in Seal Beach?

The warmest month is August, with an average high-temperature of 77.4°F (25.2°C) and an average low-temperature of 65.3°F (18.5°C).

What month has the most sunshine in Seal Beach?

With an average of 12h of sunshine, August has the most sunshine of the year in Seal Beach.

What is the least humid month in Seal Beach?

The least humid month is November, with an average relative humidity of 57%.

What is the coldest month in Seal Beach?

With an average high-temperature of 62.8°F (17.1°C) and an average low-temperature of 53.4°F (11.9°C), December is the coldest month in Seal Beach.

What is the wettest month in Seal Beach?

The month with the most rainfall in Seal Beach is December when the rain falls for 6.6 days and typically aggregates up to 1.77" (45mm) of precipitation.

What is the month with the shortest days in Seal Beach?

The month with the shortest days in Seal Beach, California, is December, with an average of 9.9h of daylight.

What is the month with the least sunshine in Seal Beach?

With an average of 6.7h of sunshine, December has the least sunshine of the year in Seal Beach, California.
Average temperature - Seal Beach, CA
Average rainfall - Seal Beach, CA

The wettest month (with the highest rainfall) is December (1.77").
The driest month (with the lowest rainfall) is June (0.04").

Average rainfall days - Seal Beach, CA

The month with the highest number of rainy days is March (8.1 days).
Months with the lowest number of rainy days are June and August (2.3 days).

Average sea temperature - Seal Beach, CA

Best months for swimming (with the highest average sea temperature) are July and August (67.9°F).
The coldest month (with the lowest average sea temperature) is January (58.3°F).

Average daylight / Average sunshine - Seal Beach, CA

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).

The month with most sunshine is August (Average sunshine: 12h).
The month with least sunshine is December (Average sunshine: 6.7h).

Average UV index - Seal Beach, CA

Months with the highest UV index are July, August and September (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 4).