Precipitation is scarce, although in winter there may be periods of bad weather.
, in the northern part of San Diego County. Like in San Diego, the climate is very mild due to the
flowing in the ocean.
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).
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.
, 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).
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.
temperature ranges between 15 °C (59 °F) and 20.5 °C (69 °F): so, the sea remains a bit cold even in summer.
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.
. Here are the average temperatures.
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.
On the coldest nights of the month, the temperature usually drops to around
4.5 °C.
On the warmest days of the month, the temperature usually reaches around
27.5 °C.
Precipitation 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.
The 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.
On the coldest nights of the month, the temperature usually drops to around
5 °C.
On the warmest days of the month, the temperature usually reaches around
26 °C.
Precipitation 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.
The 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.
On the coldest nights of the month, the temperature usually drops to around
6.5 °C.
On the warmest days of the month, the temperature usually reaches around
26.5 °C.
Precipitation 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.
The 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.
On the coldest nights of the month, the temperature usually drops to around
8 °C.
On the warmest days of the month, the temperature usually reaches around
27.5 °C.
Precipitation 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.
The 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.
On the coldest nights of the month, the temperature usually drops to around
11 °C.
On the warmest days of the month, the temperature usually reaches around
26 °C.
Precipitation 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.
The 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.
On the coldest nights of the month, the temperature usually drops to around
13.5 °C.
On the warmest days of the month, the temperature usually reaches around
26 °C.
Precipitation 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. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of
7.9 kph.
The 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.
On the coldest nights of the month, the temperature usually drops to around
16 °C.
On the warmest days of the month, the temperature usually reaches around
29 °C.
Precipitation 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. So the days are long.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of
7.2 kph.
The 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.
On the coldest nights of the month, the temperature usually drops to around
16 °C.
On the warmest days of the month, the temperature usually reaches around
29 °C.
Precipitation 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.
The 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.
On the coldest nights of the month, the temperature usually drops to around
14 °C.
On the warmest days of the month, the temperature usually reaches around
33 °C.
Precipitation 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.
The 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.
On the coldest nights of the month, the temperature usually drops to around
10.5 °C.
On the warmest days of the month, the temperature usually reaches around
32 °C.
Precipitation 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.
The 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.
On the coldest nights of the month, the temperature usually drops to around
7 °C.
On the warmest days of the month, the temperature usually reaches around
29.5 °C.
Precipitation 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.
The 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.
On the coldest nights of the month, the temperature usually drops to around
4 °C.
On the warmest days of the month, the temperature usually reaches around
26 °C.
Precipitation 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.
The average sea temperature is of
15.7 °C. Therefore, the sea is cold for swimming.