Climate and monthly weather forecastSanta Monica, CA
Climate and monthly weather forecast
Weather in January
January, the same as December, is another comfortable winter month in Santa Monica, California, with an average temperature fluctuating between 51.4°F (10.8°C) and 65.5°F (18.6°C). The average high-temperature is a still comfortable 65.5°F (18.6°C) in January, hardly different from the 63.9°F (17.7°C) recorded in December. Weather in January »Weather in February
The last month of the winter, February, is another comfortable month in Santa Monica, California, with an average temperature varying between 64.6°F (18.1°C) and 50.5°F (10.3°C). Santa Monica ushers in February with an average high-temperature of a still refreshing 64.6°F (18.1°C), showing a close resemblance to the previous month. Weather in February »Weather in March
The first month of the spring, March, is also an enjoyable month in Santa Monica, California, with an average temperature fluctuating between 66.7°F (19.3°C) and 51.4°F (10.8°C). During March, Santa Monica observes a subtle ascent to a still enjoyable 66.7°F (19.3°C) from February's 64.6°F (18.1°C) in the average high-temperature. Weather in March »Weather in April
April is an agreeable spring month in Santa Monica, California, with an average temperature fluctuating between 53.6°F (12°C) and 69.4°F (20.8°C). The average high-temperature is an agreeable 69.4°F (20.8°C) in April, hardly different from the 66.7°F (19.3°C) recorded in March. Weather in April »Weather in May
May, the last month of the spring in Santa Monica, is another pleasant month, with temperature in the range of an average low of 56.3°F (13.5°C) and an average high of 70.9°F (21.6°C). At the start of May, Santa Monica's average high-temperature reaches a still agreeable 70.9°F (21.6°C), subtly different from the preceding month. Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Santa Monica, California, with temperature in the range of an average high of 74.1°F (23.4°C) and an average low of 58.8°F (14.9°C). June registers an average high-temperature of a warm 74.1°F (23.4°C), slightly varied from May's 70.9°F (21.6°C). Weather in June »Weather in July
July, like June, in Santa Monica, California, is a moderately hot summer month, with temperature in the range of an average high of 78.6°F (25.9°C) and an average low of 63.1°F (17.3°C). Santa Monica in July witnesses an average high-temperature of a still warm 78.6°F (25.9°C), indicating a slight variation from June's 74.1°F (23.4°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Santa Monica, California, with an average temperature varying between 80.8°F (27.1°C) and 64.4°F (18°C). In Santa Monica, August records the highest average temperatures, peaking at 80.8°F (27.1°C) and reaching a low of 64.4°F (18°C). August's average heat index is computed to be 82.4°F (28°C). Weather in August »Weather in September
September, the first month of the autumn in Santa Monica, is still a warm month, with an average temperature varying between 63.7°F (17.6°C) and 80.2°F (26.8°C). September's onset records a minor alteration in the average high-temperature to a still moderately hot 80.2°F (26.8°C) from August's 80.8°F (27.1°C). Weather in September »Weather in October
October, like September, in Santa Monica, California, is a moderately hot autumn month, with an average temperature fluctuating between 61°F (16.1°C) and 76.1°F (24.5°C). Santa Monica, California, starts October with an average high-temperature of a still warm 76.1°F (24.5°C), hinting at a minimal fluctuation from September. Weather in October »Weather in November
November, the last month of the autumn in Santa Monica, is also an agreeable month, with an average temperature varying between 70°F (21.1°C) and 56.1°F (13.4°C). November is characterized by a mild reduction in the average high-temperature, from a warm 76.1°F (24.5°C) in October to a pleasant 70°F (21.1°C). Weather in November »Weather in December
December, the first month of the winter in Santa Monica, is still a comfortable month, with an average temperature ranging between max 63.9°F (17.7°C) and min 50.7°F (10.4°C). December, known for its average high temperature of 63.9°F (17.7°C) and an average low temperature of 50.7°F (10.4°C), is the coldest month. Weather in December »Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the month with the most rainfall. Rain falls for 5.4 days and accumulates 1.54" (39mm) of precipitation.
In Santa Monica, California, during the entire year, the rain falls for 48.8 days and collects up to 7.52" (191mm) of precipitation.
January through May and December, with an average ocean temperature of 59°F (15°C), are months with the coldest seawater in Santa Monica.
January, February, November and December, with an average maximum UV index of 4, are months with the lowest UV index.
The months with the least sunshine are February and December, with an average of 6.6h of sunshine.
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.
With an average relative humidity of 69%, June is the most humid month.
June and August are months with the least rain when the rain falls for 2.3 days and typically aggregates up to 0.08" (2mm) of rain.
June has the longest days of the year, with an average of 14h and 24min of daylight.
The months with the highest UV index are June through September, with an average maximum UV index of 6.
The months with the most sunshine are July and August, with an average of 11.9h of sunshine.
In Santa Monica, the peak average temperatures are observed in August, with a high of 80.8°F (27.1°C) and a low of 64.4°F (18°C).
The months with the warmest seawater are August through October, with an average ocean temperature of 66.2°F (19°C).
November is the least humid month in Santa Monica, with an average relative humidity of 52%.
The coldest time of the year is December, with temperatures averaging a high of 63.9°F (17.7°C) and a low of 50.7°F (10.4°C).
December has the shortest days of the year, with an average of 9h and 54min of daylight.
Average temperature
Santa Monica, CA
The warmest month (with the highest average high temperature) is August (80.8°F).
The month with the lowest average high temperature is December (63.9°F).
The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is February (50.5°F).
Average pressure
Santa Monica, CA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.9"Hg - Average pressure in October:
29.95"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).
Average wind speed
Santa Monica, CA
- Average wind speed in January:
5.8mph - Average wind speed in February:
5.7mph - Average wind speed in March:
5.9mph - Average wind speed in April:
6.3mph - Average wind speed in May:
5.9mph - Average wind speed in June:
5.3mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.8mph - Average wind speed in September:
4.8mph - Average wind speed in October:
5mph - Average wind speed in November:
5.4mph - Average wind speed in December:
5.8mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are August and September (4.8mph).
Average humidity
Santa Monica, CA
The month with the highest relative humidity is June (69%).
The month with the lowest relative humidity is November (52%).
Average rainfall
Santa Monica, CA
- Average rainfall in January:
1.54" - Average rainfall in February:
1.5" - Average rainfall in March:
1.14" - Average rainfall in April:
0.43" - Average rainfall in May:
0.24" - Average rainfall in June:
0.08"
- Average rainfall in July:
0.16" - Average rainfall in August:
0.08" - Average rainfall in September:
0.16" - Average rainfall in October:
0.2" - Average rainfall in November:
0.75" - Average rainfall in December:
1.26"
The wettest month (with the highest rainfall) is January (1.54").
The driest months (with the least rainfall) are June and August (0.08").
Average rainfall days
Santa Monica, CA
- Average rainfall days in January:
5.4 days - Average rainfall days in February:
5.5 days - Average rainfall days in March:
6.8 days - Average rainfall days in April:
4.6 days - Average rainfall days in May:
4.4 days - Average rainfall days in June:
2.3 days
- Average rainfall days in July:
2.7 days - Average rainfall days in August:
1.8 days - Average rainfall days in September:
2.5 days - Average rainfall days in October:
3.5 days - Average rainfall days in November:
4.1 days - Average rainfall days in December:
5.2 days
The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is August (1.8 days).
Average sea temperature
Santa Monica, CA
The best months for swimming (with the highest average sea temperature) are August, September and October (66°F).
The coldest months (with the lowest average sea temperature) are January, February, March, April, May and December (59°F).
Average daylight / Average sunshine
Santa Monica, CA
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
13h and 54min - Average daylight in June:
14h and 24min
- Average daylight in July:
14h and 12min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
9h and 54min
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 January:
6h and 42min - Average sunshine in February:
6h and 36min - Average sunshine in March:
8h and 48min - Average sunshine in April:
10h and 54min - Average sunshine in May:
10h and 54min - Average sunshine in June:
11h and 30min
- Average sunshine in July:
11h and 54min - Average sunshine in August:
11h and 54min - Average sunshine in September:
10h and 30min - Average sunshine in October:
8h and 18min - Average sunshine in November:
7h and 6min - Average sunshine in December:
6h and 36min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The months with the least sunshine are February and December (Average sunshine: 6h and 36min).
Average sunshine days
Santa Monica, CA
- Average sunshine days in January:
24.7 days - Average sunshine days in February:
21.8 days - Average sunshine days in March:
23.6 days - Average sunshine days in April:
25 days - Average sunshine days in May:
25.6 days - Average sunshine days in June:
24.8 days
- Average sunshine days in July:
26.5 days - Average sunshine days in August:
27.9 days - Average sunshine days in September:
26.3 days - Average sunshine days in October:
26.2 days - Average sunshine days in November:
24.7 days - Average sunshine days in December:
24.1 days
The month with the most sunshine days is August (27.9 days).
The month with the least sunshine days is February (21.8 days).
Average UV index
Santa Monica, CA
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover
Santa Monica, CA
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
Santa Monica, 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).
