Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Seal Beach's transition from December to January introduces an average high-temperature of a still comfortable 64.6°F (18.1°C), marking an insignificant variation from the 62.8°F (17.1°C). In Seal Beach, an average temperature of 53.6°F (12°C) is noted during January nights.Humidity
In Seal Beach, California, the average relative humidity in January is 59%.Rainfall
In Seal Beach, in January, it is raining for 5.2 days, with typically 1.69" (43mm) of accumulated precipitation. Throughout the year, in Seal Beach, there are 57.8 rainfall days, and 8.82" (224mm) of precipitation is accumulated.Ocean temperature
January is the month with the coldest seawater in Seal Beach, with an average ocean temperature of 58.3°F (14.6°C).Note: While a brief time in 58.3°F (14.6°C) at 55.4°F (13°C) is already bracing, plunging below 50°F (10°C) can severely affect breathing and introduce a cold shock, relying on your physical state.
Daylight
In Seal Beach, the average length of the day in January is 10h and 13min.On the first day of the month, sunrise is at 6:57 am and sunset at 4:54 pm. On the last day of January, sunrise is at 6:49 am and sunset at 5:22 pm PST.
Sunshine
The average sunshine in January is 6.8h.UV index
January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Seal Beach. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 4 during January leads to these instructions:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Frequently asked questions
What is the average January temperature in Seal Beach?
What is the average humidity in January in Seal Beach?
How many days does it rain in January in Seal Beach?
What month is the ocean coldest in Seal Beach?
What is the ocean temperature in January in Seal Beach?
How many hours of daylight does Seal Beach have in January?
When is the sunrise / sunset in January in Seal Beach?
How many hours of sunshine does Seal Beach have in January?
What is the month with the lowest UV index in Seal Beach?
What is the UV index reading in January in Seal Beach?
Average temperature in January
Seal Beach, CA
- Average high temperature in January: 64.6°F
The warmest month (with the highest average high temperature) is August (77.4°F).
The month with the lowest average high temperature is December (62.8°F).
- Average low temperature in January: 53.6°F
The month with the highest average low temperature is August (65.3°F).
The coldest month (with the lowest average low temperature) is February (52.7°F).
Average pressure in January
Seal Beach, CA
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.89"Hg).
Average wind speed in January
Seal Beach, CA
- Average wind speed in January: 5.6mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest months (with the lowest average wind speed) are August, September and October (5.3mph).
Average humidity in January
Seal Beach, CA
- Average humidity in January: 59%
The month with the highest relative humidity is June (73%).
The month with the lowest relative humidity is November (57%).
Average rainfall in January
Seal Beach, CA
- Average rainfall in January: 1.69"
The wettest month (with the highest rainfall) is December (1.77").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in January
Seal Beach, CA
- Average rainfall days in January: 5.2 days
The month with the highest number of rainy days is March (8.1 days).
The months with the least rainy days are June and August (2.3 days).
Average sea temperature in January
Seal Beach, CA
- Average sea temperature in January: 58.3°F
The 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 in January /
Average sunshine in January
Seal Beach, CA
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January: 6h and 5min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in January
Seal Beach, CA
- Average sunshine days in January: 24.2 days
The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is February (19.3 days).
Average UV index in January
Seal Beach, CA
- Average UV index in January: 4
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 January
Seal Beach, CA
- Average cloud cover in January: 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 7).
Average visibility in January
Seal Beach, CA
- Average visibility in January: 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).
Seal Beach, California, USA
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