Carlsbad, CA Weather by Month and Climate Averages

Carlsbad, CA gets 11.9 in of precipitation a year over about 54 rainy days. August is the warmest month (average high 78°F) and December the coldest (average low 40°F).

Carlsbad climate at a glance

Semi-arid climate

Carlsbad, CA has warm summers and mild winters. Daytime highs range from about 66°F in February to 78°F in August. February is usually the wettest month. The most comfortable time to visit is typically January and March to December, when daytime highs sit near 72°F.

How much rain does Carlsbad get?

Carlsbad gets 11.9 in of precipitation in an average year, spread over about 54 days with measurable rain. That is fewer rainy days than 80% of the US.

February is the wettest month, with 2.9 in. August is the driest, with 0.0 in. February has the most rainy days, about 9.

The longest dry spell in the last five years lasted 139 days, to September 8, 2022.

See where Carlsbad ranks: rainiest cities in the US, US cities with the most rainy days, rainiest cities in California.

Carlsbad weather by month

Carlsbad weather in January

In January, Carlsbad averages a high of 67°F and a low of 41°F. It gets 2.4 in of precipitation over about 6 rainy days. The sun is out about 53% of daylight hours. The January record high is 92°F (2021) and the record low is 25°F (2007). January is one of the most comfortable months to visit.

Carlsbad weather in February

In February, Carlsbad averages a high of 66°F and a low of 42°F. It gets 2.9 in of precipitation over about 9 rainy days. The sun is out about 58% of daylight hours. The February record high is 91°F (2022) and the record low is 28°F (2011).

Carlsbad weather in March

In March, Carlsbad averages a high of 67°F and a low of 46°F. It gets 1.7 in of precipitation over about 8 rainy days. The sun is out about 48% of daylight hours. The March record high is 92°F (2015) and the record low is 29°F (2021). March is one of the most comfortable months to visit.

Carlsbad weather in April

In April, Carlsbad averages a high of 69°F and a low of 49°F. It gets 0.9 in of precipitation over about 5 rainy days. The sun is out about 53% of daylight hours. The April record high is 92°F (2008) and the record low is 37°F (2000). April is one of the most comfortable months to visit.

Carlsbad weather in May

In May, Carlsbad averages a high of 70°F and a low of 54°F. It gets 0.3 in of precipitation over about 4 rainy days. The sun is out about 45% of daylight hours. The May record high is 89°F (2011) and the record low is 38°F (2011). May is one of the most comfortable months to visit.

Carlsbad weather in June

In June, Carlsbad averages a high of 73°F and a low of 58°F. It gets 0.1 in of precipitation over about 2 rainy days. The sun is out about 56% of daylight hours. The June record high is 89°F (2015) and the record low is 45°F (2011). June is one of the most comfortable months to visit.

Carlsbad weather in July

In July, Carlsbad averages a high of 77°F and a low of 62°F. It gets 0.1 in of precipitation over about 1 rainy days. The sun is out about 68% of daylight hours. The July record high is 94°F (2006) and the record low is 51°F (2020). July is one of the most comfortable months to visit.

Carlsbad weather in August

In August, Carlsbad averages a high of 78°F and a low of 62°F. It gets 0.0 in of precipitation over about 1 rainy days. The sun is out about 71% of daylight hours. The August record high is 93°F (2013) and the record low is 50°F (2009). August is one of the most comfortable months to visit.

Carlsbad weather in September

In September, Carlsbad averages a high of 78°F and a low of 59°F. It gets 0.1 in of precipitation over about 2 rainy days. The sun is out about 65% of daylight hours. The September record high is 105°F (2010) and the record low is 45°F (2005). September is one of the most comfortable months to visit.

Carlsbad weather in October

In October, Carlsbad averages a high of 76°F and a low of 52°F. It gets 0.6 in of precipitation over about 5 rainy days. The sun is out about 64% of daylight hours. The October record high is 106°F (2017) and the record low is 34°F (2009). October is one of the most comfortable months to visit.

Carlsbad weather in November

In November, Carlsbad averages a high of 71°F and a low of 45°F. It gets 0.8 in of precipitation over about 6 rainy days. The sun is out about 66% of daylight hours. The November record high is 98°F (2016) and the record low is 28°F (2010). November is one of the most comfortable months to visit.

Carlsbad weather in December

In December, Carlsbad averages a high of 67°F and a low of 40°F. It gets 2.0 in of precipitation over about 7 rainy days. The sun is out about 51% of daylight hours. The December record high is 87°F (2017) and the record low is 25°F (2011). December is one of the most comfortable months to visit.

Sunshine, humidity and wind in Carlsbad

August is the sunniest month in Carlsbad, with sunshine about 71% of daylight hours. May is the cloudiest, at 45%. Over the year the sun shines about 58% of daylight hours. Carlsbad is sunnier than 83% of the US.

Humidity peaks in May at 73% and is lowest in November at 52%.

Wind averages 4 mph over the year, and May is the windiest month at 5 mph.

Carlsbad has about 5 days a year above 90°F. Carlsbad is cooler than 91% of the US.

Thunderstorms occur on about 4 days a year.

See where Carlsbad ranks: sunniest cities in the US, cloudiest cities in the US, hottest cities in the US.

First and last freeze in Carlsbad

The first fall freeze in Carlsbad typically comes around December 12, and the last spring freeze around February 3. That leaves a frost-free growing season of about 312 days.

Carlsbad weather records

The hottest temperature on record at the Carlsbad station is 106°F, on October 24, 2017. The coldest is 25°F, on January 15, 2007.

The wettest day on record brought 3.0 in of rain, on December 21, 2010.

The best time to visit Carlsbad

The most comfortable time to visit is typically January and March to December, when daytime highs sit near 72°F.

Winter (December–February) is mild, with average highs around 66°F and lows near 41°F.

Spring (March–May) is warm, with average highs around 69°F and lows near 50°F.

Summer (June–August) is warm, with average highs around 76°F and lows near 61°F. It can feel humid.

Autumn (September–November) is warm, with average highs around 75°F and lows near 52°F.

Monthly climate

MonthPrecipRain daysWindHumiditySunshineSea tempRecord highRecord low
January2.4 in64 mph63%53%59°92°25°
February2.9 in94 mph60%58%59°91°28°
March1.7 in84 mph69%48%59°92°29°
April0.87 in55 mph70%53%61°92°37°
May0.30 in45 mph73%45%64°89°38°
June0.11 in25 mph70%56%66°89°45°
July0.05 in15 mph70%68%70°94°51°
August0.04 in14 mph68%71%71°93°50°
September0.13 in24 mph66%65%71°105°45°
October0.64 in54 mph61%64%68°106°34°
November0.79 in64 mph52%66%63°98°28°
December2.0 in74 mph59%51%61°87°25°

From ERA5 reanalysis. Sunshine is estimated from cloud cover.

Carlsbad climate questions

How much rain does Carlsbad get?

Carlsbad gets 11.9 in of precipitation in an average year, over about 54 rainy days.

What is the wettest month in Carlsbad?

February is the wettest month in Carlsbad, with 2.9 in. August is the driest, with 0.0 in.

How many rainy days does Carlsbad have a year?

Carlsbad has about 54 days with measurable rain in an average year. February has the most, about 9.

What is the hottest month in Carlsbad?

August is the warmest month in Carlsbad, with an average high of 78°F.

What is the coldest month in Carlsbad?

December is the coldest month in Carlsbad, with an average low of 40°F.

What is the record high temperature in Carlsbad?

The record high at the Carlsbad station is 106°F, set on October 24, 2017. The record low is 25°F, on January 15, 2007.

What is the sunniest month in Carlsbad?

August is the sunniest month in Carlsbad, with sunshine about 71% of daylight hours. May is the cloudiest.

When is the first frost in Carlsbad?

The first fall freeze in Carlsbad typically comes around December 12. The last spring freeze is around February 3.

What is the best time to visit Carlsbad?

The most comfortable time to visit is typically January and March to December, when daytime highs sit near 72°F.

Source: NOAA GHCN-Daily station OCEANSIDE MUNI AP (7 km away).

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Normals from NOAA GHCN-Daily station OCEANSIDE MUNI AP.