Carlsbad (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Carlsbad.
Climate overview of Carlsbad
With consistently stable weather, Carlsbad, California, United States of America, sees little seasonal temperature change. Daytime highs average 21°C (70°F), ranging from 24°C (75°F) in September to 18°C (64°F) in December.
With just 244 mm (9.6 in) of annual rainfall, the city has a dry, desert-like climate. The most sunshine falls in July, with an average of 10.1 hours of daily sunshine.
Carlsbad Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Carlsbad - and find the best time to visit.
Monthly Temperature in Carlsbad
The climate in Carlsbad remains fairly constant, offering pleasant temperatures throughout the year. Average daytime temperatures reach a comfortable 24°C (75°F) in September. In December, the coolest month of the year, temperatures drop to a pleasant 18°C (64°F).
At night, temperatures range from around 18°C (64°F) in September to 7°C (45°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Carlsbad
Carlsbad experiences desert-like conditions in terms of precipitation with almost no rainfall, generally receiving 244 mm (9.6 in) annually. Carlsbad can be quite wet during December, receiving approximately 68 mm (2.7 in) of precipitation over 8 rainy days.
In contrast, during the driest month (June), you will experience much drier conditions, with 0.4 mm (0.02 in) of precipitation spread across a single rainy day. For more details, please visit our Carlsbad Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Carlsbad
Carlsbad experiences moderate variation in sunshine hours across the seasons. With 10.1 hours daily sunshine in July, it dips to 7.7 hours in February, offering a balanced mix of sunny and overcast days.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Carlsbad by Month
The relative humidity is high throughout the year in Carlsbad.
The city experiences its highest humidity in July, reaching 75%. In January, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Carlsbad
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: March, April, May, June, July, August, September, October and November
- Warmest weather: July, August, September and October
- Most sunshine: July and August
- Fewer rainy days: May, June, July, August and September
- Seasonal pattern: Very little rainfall for most of the year
Frequently asked questions about the climate in Carlsbad
What is the best time to visit Carlsbad?
March, April, May, June, July, August, September, October and November typically offer the most optimal weather in Carlsbad. In contrast, January, February and December tend to have less optimal conditions. Carlsbad has very little rainfall for most of the year.
What temperatures can I expect in Carlsbad?
Daytime highs range from 18°C (64°F) in December to 24°C (75°F) in September. Nighttime lows range from 7°C (45°F) to 18°C (64°F). Temperatures stay relatively stable year-round.
How much rain does Carlsbad get?
Annual rainfall is around 244 mm (9.6 in). December is the wettest month with 68 mm (2.7 in), while June is the driest with 0.4 mm (0.02 in).
How sunny is Carlsbad?
Carlsbad receives around 3,069 hours of sunshine per year. July is the sunniest month with 304 hours, while February is the cloudiest with just 230 hours. Overall, Carlsbad enjoys abundant sunshine.
Carlsbad 3-Day Forecast
Carlsbad (CA) 3-Day Forecast
Carlsbad on the map
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