Del Mar, CA climate
Del Mar has warm winters and cool summers, with very little rain. A typical July afternoon reaches 73°, a January night drops to 48°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Del Mar feels like
Winter
Spring
Summer
Fall
Del Mar weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 66° | 48° | 2.1" | 0 | 7 | 0 | 54° – 62° |
| February | 65° | 49° | 2.5" | 0 | 8 | 0 | 53° – 63° |
| March | 66° | 51° | 1.6" | 0 | 6 | 0 | 54° – 65° |
| April | 67° | 54° | 0.7" | 0 | 3 | 0 | 56° – 65° |
| May | 68° | 58° | 0.3" | 0 | 2 | 0 | 60° – 68° |
| June | 70° | 61° | 0.1" | 0 | 1 | 0 | 62° – 70° |
| July | 73° | 65° | 0.0" | 0 | 1 | 0 | 66° – 75° |
| August | 76° | 66° | 0.0" | 0 | 0 | 0 | 67° – 74° |
| September | 75° | 64° | 0.1" | 0 | 1 | 0 | 66° – 74° |
| October | 73° | 59° | 0.5" | 0 | 3 | 0 | 62° – 72° |
| November | 70° | 52° | 0.8" | 0 | 4 | 0 | 55° – 65° |
| December | 65° | 48° | 1.6" | 0 | 7 | 0 | 54° – 60° |
| Year | 69° | 56° | 10.4" | 0.0" | 42 | 0 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Del Mar
Del Mar gets 10 inches of rain and melted snow a year. February is the wettest month and August the driest. Rain or snow falls on about 42 days a year.
A year-round growing season
Heating and cooling a home in Del Mar
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Del Mar, 71% of that work is heating and 29% is cooling.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Del Mar and its neighbors
Del Mar borders 2 towns with climate data. January nights across them vary by 3.3°. San Diego has both the coldest January nights (45°) and the hottest July afternoons (80°). Del Mar’s January low is 48° and its July high 73°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Del Mar compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Del Mar averaged 2.2° warmer than the 1900s. The biggest change is in January (+3.2°). The shift is larger than in 97% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Del Mar’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. March swings the most: between 1991 and 2020 its average temperature ranged from 54° to 65°. December is the most reliable, staying within 6°.
Common questions about Del Mar’s climate
What is the coldest month in Del Mar?
December, with a typical high of 65° and a low of 48°.
What is the hottest month in Del Mar?
August, with a typical high of 76° and a low of 66°. About 3 days a year reach 90°.
How much snow does Del Mar get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Del Mar?
Frost is uncommon. Only 1% of years see a night at 32° or below.
What is the rainiest month in Del Mar?
February, with 2.5 inches of rain and melted snow. The year totals 10 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Del Mar itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at North Island Nas, CA (19 mi, snow) and Carlsbad Palomar Airport, CA (11 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.