Lake San Marcos
California, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Lake San Marcos, CA

January, the same as December, is another enjoyable winter month in Lake San Marcos, California, with average temperature varying between 48.7°F (9.3°C) and 64.9°F (18.3°C). In Lake San Marcos, the average high-temperature in January is practically the same as in December - a still comfortable 64.9°F (18.3°C). Weather in January »

The last month of the winter, February, is another comfortable month in Lake San Marcos, California, with average temperature fluctuating between 48°F (8.9°C) and 63.3°F (17.4°C). The coldest months are February and December, with an average high-temperature of 63.3°F (17.4°C). Weather in February »

March, the first month of the spring, in Lake San Marcos, is still a comfortable month, with average temperature varying between 65.8°F (18.8°C) and 49.5°F (9.7°C). In March, the average high-temperature is essentially the same as in February - a still enjoyable 65.8°F (18.8°C). Weather in March »

April in Lake San Marcos, California, is an agreeable spring month, with average temperature varying between 51.3°F (10.7°C) and 68.5°F (20.3°C). In Lake San Marcos, the average high-temperature is relatively the same as in March - an agreeable 68.5°F (20.3°C). Weather in April »

The last month of the spring, May, is also an agreeable month in Lake San Marcos, California, with average temperature fluctuating between 53.6°F (12°C) and 70.3°F (21.3°C). In Lake San Marcos, the average high-temperature is practically the same as in April - a still pleasant 70.3°F (21.3°C). Weather in May »

June, the first month of the summer, in Lake San Marcos, is a moderately hot month, with average temperature fluctuating between 56.5°F (13.6°C) and 75.2°F (24°C). In Lake San Marcos, the average high-temperature in June is practically the same as in May - a moderately hot 75.2°F (24°C). Weather in June »

July, like June, in Lake San Marcos, California, is another warm summer month, with temperature in the range of an average high of 80.2°F (26.8°C) and an average low of 62.6°F (17°C). In Lake San Marcos, the average high-temperature is almost the same as in June - a still warm 80.2°F (26.8°C). Weather in July »

August, the last month of the summer, in Lake San Marcos, is also a moderately hot month, with temperature in the range of an average low of 64.2°F (17.9°C) and an average high of 81.9°F (27.7°C). The warmest month is August, with an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 64.2°F (17.9°C). In August, the average heat index is calculated to 84.7°F (29.3°C). Weather in August »

The first month of the autumn, September, is still a warm month in Lake San Marcos, California, with average temperature fluctuating between 63.3°F (17.4°C) and 80.8°F (27.1°C). In Lake San Marcos, the average high-temperature is almost the same as in August - a still moderately hot 80.8°F (27.1°C). Weather in September »

October, like September, in Lake San Marcos, California, is another warm autumn month, with temperature in the range of an average low of 58.8°F (14.9°C) and an average high of 75.4°F (24.1°C). In October, the average high-temperature slightly decreases, from 80.8°F (27.1°C) in September, to a still moderately hot 75.4°F (24.1°C). Weather in October »

The last month of the autumn, November, is another pleasant month in Lake San Marcos, California, with average temperature fluctuating between 54°F (12.2°C) and 69.4°F (20.8°C). In Lake San Marcos, the average high-temperature marginally drops, from a warm 75.4°F (24.1°C) in October, to a pleasant 69.4°F (20.8°C). Weather in November »

December, the first month of the winter, in Lake San Marcos, is still a comfortable month, with average temperature fluctuating between 63.3°F (17.4°C) and 48.2°F (9°C). February and December, with an average high-temperature of 63.3°F (17.4°C), are the coldest months. Weather in December »

How many days does it rain in Lake San Marcos?

Throughout the year, in Lake San Marcos, there are 52.1 rainfall days, and 6.1" (155mm) of precipitation is accumulated.

What is the month with the lowest UV index in Lake San Marcos?

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

What are the coldest months in Lake San Marcos?

The coldest months are February and December, with an average high-temperature of 63.3°F (17.4°C).

What is the most humid month in Lake San Marcos?

With an average relative humidity of 70%, May is the most humid month in Lake San Marcos.

What is the driest month in Lake San Marcos?

June is the month with the least rainfall in Lake San Marcos, California. Rain falls for 1.2 days and accumulates 0.08" (2mm) of precipitation.

When are the longest days in Lake San Marcos?

The month with the longest days is June, with an average of 14.3h of daylight.

What are the months with the highest UV index in Lake San Marcos?

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

What month has the most sunshine in Lake San Marcos?

July has the most sunshine of the year, with an average of 12.1h of sunshine.

What is the warmest month in Lake San Marcos?

With an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 64.2°F (17.9°C), August is the warmest month.

What is the least humid month in Lake San Marcos?

With an average relative humidity of 56%, November is the least humid month in Lake San Marcos.

What is the rainiest month in Lake San Marcos?

December is the month with the most rainfall in Lake San Marcos. Rain falls for 5.9 days and accumulates 1.22" (31mm) of precipitation.

What is the month with the shortest days in Lake San Marcos?

December has the shortest days of the year, with an average of 10h of daylight.

What is the month with the least sunshine in Lake San Marcos?

With an average of 6.8h of sunshine, December has the least sunshine of the year in Lake San Marcos.
Average temperature - Lake San Marcos, CA
Average humidity - Lake San Marcos, CA
Average rainfall - Lake San Marcos, CA

The wettest month (with the highest rainfall) is December (1.22").
The driest month (with the least rainfall) is June (0.08").

Average rainfall days - Lake San Marcos, CA
Average daylight / Average sunshine - Lake San Marcos, CA

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.8h).

Average UV index - Lake San Marcos, CA

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