Weather and climate in Carlsbad, CA
What the weather is like in Carlsbad
The warmest month in Carlsbad is September, with average highs of 76°F. The coolest is February, when nights average 54°F. About 12.3 in of rain and snow falls in a typical year, most in February and least in August.
Skies are clearest in September (28% average cloud cover) and cloudiest in May (43%). Combining cloud with the length of truly dark nights, November, October, December offer the most clear, dark hours for stargazing.
Clear, dark hours per night
Hours of full astronomical darkness in mid-month, multiplied by the average share of clear sky. A rough guide to how much good observing time a typical night offers.
Monthly averages
| Month | High | Low | Precipitation | Cloud cover | Humidity | Wind | Dark hours |
|---|---|---|---|---|---|---|---|
| January | 63°F | 54°F | 2.3 in | 41% | 69% | 5 mph | 10.9 h |
| February | 62°F | 54°F | 2.7 in | 43% | 72% | 6 mph | 10.2 h |
| March | 63°F | 54°F | 1.3 in | 43% | 75% | 6 mph | 9.3 h |
| April | 64°F | 55°F | 0.8 in | 40% | 76% | 6 mph | 8.1 h |
| May | 66°F | 57°F | 0.3 in | 43% | 78% | 6 mph | 6.9 h |
| June | 69°F | 60°F | 0.2 in | 42% | 78% | 5 mph | 6.2 h |
| July | 74°F | 64°F | 0.1 in | 35% | 76% | 5 mph | 6.6 h |
| August | 76°F | 65°F | 0.1 in | 29% | 73% | 5 mph | 7.6 h |
| September | 76°F | 65°F | 0.2 in | 28% | 72% | 5 mph | 8.9 h |
| October | 72°F | 63°F | 0.7 in | 33% | 71% | 5 mph | 9.9 h |
| November | 68°F | 59°F | 1.1 in | 36% | 68% | 5 mph | 10.7 h |
| December | 63°F | 55°F | 2.5 in | 42% | 69% | 6 mph | 11.1 h |
Climate nearby
Climate averages: NASA POWER, 2001–2025, for the grid area around 33.00, -117.50 (about 50 km across). High and low temperatures are estimated from the monthly mean and the average daily range. Hills, coasts and cities can differ from the area average. Sources and methods.