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Climate in Carlsbad (California)


Average weather, temperature, rainfall, sunshine hours

Flag - United States

Carlsbad, where it's located


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Climate chart - Carlsbad
The climate of Carlsbad is arid sub-tropical, with very mild, relatively rainy winters and warm, sunny summers.
Precipitation is scarce, although in winter there may be periods of bad weather.
The city is located on the coast of California, in the northern part of San Diego County. Like in San Diego, the climate is very mild due to the cold current flowing in the ocean.
Here too, however, the temperature can rise a lot when the Santa Ana wind blows from the deserts areas of the interior. On average, there are only 3 days with a maximum temperature equal to or above 32 °C (90 °F).
On the hottest days of the year, the temperature normally reaches 37/38 °C (99/100 °F), usually in September or October, but during some years it does not exceed 32/33 °C (90/91 °F). The highest record is 42 °C (107.5 °F), recorded in September 2010.
In winter, the temperature never drops below freezing. In January 2007, it dropped to 0.5 °C (33 °F), with a maximum of 11 °C (52 °F).

Carlsbad

For the amount of sunshine, we can refer to the data from San Diego. Here, there are about 3,000 hours of sunshine per year, so the amount of sunshine is very good. In May and June, fog can form, so the hours of sunshine decrease slightly.

The sea temperature ranges between 15 °C (59 °F) and 20.5 °C (69 °F): so, the sea remains a bit cold even in summer.

Best Time


Having a good climate, Carlsbad can be visited all year round. However, from December to March, it can rain, and it can get a bit cold at night. In May and June, there may be morning mists. In summer, but especially in September and October, there can be very hot days, when the wind blows from the desert.
The best time to go to the beach is from July to October, when the sea is less cold.

The following data was measured at McClellan-Palomar airport, which is located near the coast. In summer, the temperature on the seafront is even lower, so much so that it often remains around 20 °C (68 °F) even in July and August.

Carlsbad - Climate data


In Carlsbad, the average temperature of the coldest month (December) is of 13,3 °C, that of the warmest month (August) is of 21,4 °C. Here are the average temperatures.
Carlsbad - Average temperatures (1991-2020)
Temperatures (°C)
MonthMinMaxMean
January8,818,313,6
February9,217,813,5
March10,418,114,2
April11,819,115,4
May14,119,816,9
June15,721,118,4
July17,823,420,6
August18,524,321,4
September17,624,320,9
October14,922,918,9
November11,220,816
December8,518,113,3
Year13,220,716,9

Precipitation amounts to 290 millimeters per year: it is therefore scarce. It ranges from 0 millimeters in the driest months (June, July, August) to 65 millimeters in the wettest ones (January, February) Here is the average precipitation.
Carlsbad - Average precipitation
MonthRain (mm)Days
January657
February658
March407
April205
May53
June01
July01
August01
September52
October154
November256
December458
Year29053

The sea temperature ranges from 15 °C in January, February, March to 20,5 °C in August, September. Here are the average sea temperatures.
Carlsbad - Sea temperature
MonthTemperatures (°C)
January15
February15
March15
April15,5
May16,5
June18
July20
August20,5
September20,5
October19,5
November17,5">
December15,5
Year17,4

Carlsbad - Weather by month

Based on the period 1991-2020
(January - February - March - April - May - June - July - August - September - October - November - December)


January is generally a mild month. The average temperature is of 13,6 °C, with a minimum of 8,8 °C and a maximum of 18,3 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 4,5 °C.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 27,5 °C.
Rain iconPrecipitation amounts to 65 mm, distributed over 7 days.
The day lasts on average 10 hours and 20 minutes.
The average humidity is 62%.
The average wind speed is of 6,1 kph.
Sea iconThe average sea temperature is of 14,9 °C. Therefore, the sea is cold for swimming.


February is generally a mild month. The average temperature is of 13,5 °C, with a minimum of 9,2 °C and a maximum of 17,8 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 5 °C.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 26 °C.
Rain iconPrecipitation amounts to 65 mm, distributed over 8 days.
The day lasts on average 11 hours and 0 minutes.
The average humidity is 66%.
The average wind speed is of 7,2 kph.
Sea iconThe average sea temperature is of 14,9 °C. Therefore, the sea is cold for swimming.


March is generally a mild month. The average temperature is of 14,2 °C, with a minimum of 10,4 °C and a maximum of 18,1 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 6,5 °C.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 26,5 °C.
Rain iconPrecipitation amounts to 40 mm, distributed over 7 days.
The day lasts on average 12 hours and 0 minutes.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is of 7,4 kph.
Sea iconThe average sea temperature is of 15,1 °C. Therefore, the sea is cold for swimming.


April is generally a very mild month. The average temperature is of 15,4 °C, with a minimum of 11,8 °C and a maximum of 19,1 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 8 °C.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 27,5 °C.
Rain iconPrecipitation amounts to 20 mm, distributed over 5 days.
The day lasts on average 13 hours and 5 minutes.
The average humidity is 70%. Hence, the air is normally humid.
The average wind speed is of 8,2 kph.
Sea iconThe average sea temperature is of 15,6 °C. Therefore, the sea is cold for swimming.


May is generally a very mild month. The average temperature is of 16,9 °C, with a minimum of 14,1 °C and a maximum of 19,8 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 11 °C.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 26 °C.
Rain iconPrecipitation amounts to only 5 mm, distributed over 3 days.
The day lasts on average 13 hours and 55 minutes.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is of 8,4 kph.
Sea iconThe average sea temperature is of 16,6 °C. Therefore, the sea is cold for swimming.


June is generally a warm month. The average temperature is of 18,4 °C, with a minimum of 15,7 °C and a maximum of 21,1 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 13,5 °C.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 26 °C.
Rain iconPrecipitation amounts to only 0 mm, so on average it never rains in the whole month.
The day lasts on average 14 hours and 20 minutes. June 21, the winter solstice, is the shortest day of the year in the Southern Hemisphere.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of 7,9 kph.
Sea iconThe average sea temperature is of 18 °C. Therefore, the sea is cold for swimming.


July is generally a warm month. The average temperature is of 20,6 °C, with a minimum of 17,8 °C and a maximum of 23,4 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 16 °C.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 29 °C.
Rain iconPrecipitation amounts to only 0 mm, so on average it never rains in the whole month.
The day lasts on average 14 hours and 5 minutes.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of 7,2 kph.
Sea iconThe average sea temperature is of 19,8 °C. Therefore, the sea is very cool for swimming.


August, the warmest month of the year, is generally a warm month. The average temperature is of 21,4 °C, with a minimum of 18,5 °C and a maximum of 24,3 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 16 °C.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 29 °C.
Rain iconPrecipitation amounts to only 0 mm, so on average it never rains in the whole month.
The day lasts on average 13 hours and 20 minutes.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of 6,7 kph.
Sea iconThe average sea temperature is of 20,5 °C. Therefore, the sea is cool for swimming.


September is generally a warm month. The average temperature is of 20,9 °C, with a minimum of 17,6 °C and a maximum of 24,3 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 14 °C.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 33 °C.
Rain iconPrecipitation amounts to only 5 mm, distributed over 2 days.
The day lasts on average 12 hours and 20 minutes.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of 6,5 kph.
Sea iconThe average sea temperature is of 20,4 °C. Therefore, the sea is cool for swimming.


October is generally a warm month. The average temperature is of 18,9 °C, with a minimum of 14,9 °C and a maximum of 22,9 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 10,5 °C.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 32 °C.
Rain iconPrecipitation amounts to 15 mm, distributed over 4 days.
The day lasts on average 11 hours and 20 minutes.
The average humidity is 67%.
The average wind speed is of 6,1 kph.
Sea iconThe average sea temperature is of 19,3 °C. Therefore, the sea is very cool for swimming.


November is generally a very mild month. The average temperature is of 16 °C, with a minimum of 11,2 °C and a maximum of 20,8 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 7 °C.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 29,5 °C.
Rain iconPrecipitation amounts to 25 mm, distributed over 6 days.
The day lasts on average 10 hours and 25 minutes.
The average humidity is 63%.
The average wind speed is of 5,8 kph.
Sea iconThe average sea temperature is of 17,5 °C. Therefore, the sea is cold for swimming.


December, the coldest month of the year, is generally a mild month. The average temperature is of 13,3 °C, with a minimum of 8,5 °C and a maximum of 18,1 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 4 °C.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 26 °C.
Rain iconPrecipitation amounts to 45 mm, distributed over 8 days.
The day lasts on average 10 hours and 0 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
The average humidity is 62%.
The average wind speed is of 6,1 kph.
Sea iconThe average sea temperature is of 15,7 °C. Therefore, the sea is cold for swimming.

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