Oceanside weather by month
Average highs run from 67°F in January to 76°F in July, and January nights average 40°F. It gets 12 inches of rain and melted snow a year, with almost no snow. The most comfortable months are February to November.
Best time to visit Oceanside
For comfortable weather, go in February to November. In those months the average high stays between 62°F and 86°F, nights average 42°F or warmer, and rain stays under 4.5 inches for the month.
Month by month
| Month | High | Low | Precip. | Snow | Wet days | Days 90°F+ | Nights below 32°F | Feels |
|---|---|---|---|---|---|---|---|---|
| January | 67°F | 41°F | 2.4 in | 0.0 in | 3 | 0 | 3 | mild days, chilly nights |
| February | 66°F | 42°F | 2.9 in | 0.0 in | 5 | 0 | 1 | mild |
| March | 66°F | 46°F | 1.7 in | 0.0 in | 3 | 0 | 0 | mild |
| April | 69°F | 48°F | 0.9 in | 0.0 in | 2 | 0 | 0 | mild |
| May | 70°F | 54°F | 0.3 in | 0.0 in | 1 | 0 | 0 | mild |
| June | 73°F | 58°F | 0.1 in | 0.0 in | 0 | 0 | 0 | mild |
| July | 77°F | 62°F | 0.1 in | 0.0 in | 0 | 0 | 0 | warm |
| August | 78°F | 62°F | 0.0 in | 0.0 in | 0 | 0 | 0 | warm |
| September | 78°F | 59°F | 0.1 in | 0.0 in | 0 | 1 | 0 | warm |
| October | 75°F | 53°F | 0.6 in | 0.0 in | 1 | 2 | 0 | mild |
| November | 71°F | 44°F | 0.8 in | 0.0 in | 2 | 1 | 0 | mild |
| December | 66°F | 40°F | 2.0 in | 0.0 in | 3 | 0 | 4 | mild days, chilly nights |
| Year | 71°F avg | 51°F avg | 11.9 in | 0.0 in | 20 | 5 | 8 |
"Wet days" are days with at least 0.1 inch of precipitation. "Feels" is a plain-language label for the average high. Normals for 1991-2020 from NOAA NCEI, station Oceanside Municipal Airport, CA (USW00053121), 2.4 miles from the city center; snowfall from Oceanside Marina, CA. Averages describe typical conditions, not a forecast.
Sunrise, sunset and daylight in Oceanside
The shortest day is December 21, with 9h 57m of daylight; the longest is June 21, with 14h 21m. The earliest sunset comes around November 30 (4:41 pm) and the latest around June 23 (8:02 pm). The sun sets after 8 pm on 28 days a year.
| On the 15th of | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 6:53 am | 5:05 pm | 10h 12m |
| February | 6:33 am | 5:34 pm | 11h 01m |
| March | 6:59 am | 6:57 pm | 11h 58m |
| April | 6:19 am | 7:19 pm | 13h 01m |
| May | 5:49 am | 7:42 pm | 13h 52m |
| June | 5:40 am | 8:00 pm | 14h 20m |
| July | 5:51 am | 7:59 pm | 14h 07m |
| August | 6:12 am | 7:34 pm | 13h 22m |
| September | 6:33 am | 6:55 pm | 12h 22m |
| October | 6:54 am | 6:15 pm | 11h 21m |
| November | 6:20 am | 4:47 pm | 10h 26m |
| December | 6:45 am | 4:43 pm | 9h 58m |
Calculated for 2026 at the center of Oceanside with NOAA's solar equations, in local clock time (Pacific Time, including daylight saving time where it applies). Times shift by a minute or two from year to year.
Is Oceanside getting warmer?
The last 10 years averaged 2.8°F warmer than the 20th century. See the climate stripes for Oceanside.Frequently asked questions
What is the warmest month in Oceanside?
August is the warmest month, with an average high of 78°F and an average low of 62°F (NOAA 1991-2020 normals).
What is the coldest month in Oceanside?
December is the coldest, with average lows of 40°F and highs of 66°F.
What is the rainiest month in Oceanside?
February gets the most precipitation, 2.9 inches on average. August is the driest at 0.0 inches.
Does it snow in Oceanside?
Very little. The normal yearly snowfall is under one inch.
When is the best time to visit Oceanside?
For comfortable weather, February to November. Those months average highs between 62 and 86°F with lows of 42°F or more and modest rain.
Thinking of moving to Oceanside?
See what homes, rent and everyday prices cost, who lives there and how it compares with nearby cities on the full Oceanside profile.
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