Oceanside Marina, California climate: Climate normals at a NOAA weather station
Oceanside Marina's normal year runs from 47°F December nights to 71°F August afternoons, with 10.3 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 16.1°C, December lows of 8°C, August highs of 22°C, 261 mm of precipitation a year.
- NOAA stationOceanside Marina
- Station IDUSC00046377
- Location33.21°N 117.39°W
- Elevation10 ft (3 m)
On October 23, the normal high in Oceanside Marina is 69°F and the normal low 57°F, and the chance of measurable rain or snow is 8%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Oceanside Marina.
- Jan 63° 47°
- Feb 62° 48°
- Mar 62° 51°
- Apr 63° 53°
- May 65° 58°
- Jun 66° 61°
- Jul 70° 65°
- Aug 71° 66°
- Sep 71° 64°
- Oct 70° 58°
- Nov 67° 51°
- Dec 63° 47°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Oceanside Marina each month?
August is the warmest month, with normal highs of 71°F; December the coldest, with normal lows of 47°F. The most precipitation falls in February (2.36 in), the least in August (0.02 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 63°F | 47°F | 55.0°F | 2.22 | 6 | <1 | <1 | 10 h 10 min |
| February | 62°F | 48°F | 55.0°F | 2.36 | 6 | <1 | <1 | 11 h |
| March | 62°F | 51°F | 56.3°F | 1.41 | 5 | <1 | <1 | 12 h |
| April | 63°F | 53°F | 58.4°F | 0.80 | 3 | <1 | <1 | 13 h |
| May | 65°F | 58°F | 61.3°F | 0.28 | 2 | <1 | <1 | 13 h 50 min |
| June | 66°F | 61°F | 63.8°F | 0.08 | 1 | <1 | <1 | 14 h 20 min |
| July | 70°F | 65°F | 67.4°F | 0.04 | 1 | <1 | <1 | 14 h 10 min |
| August | 71°F | 66°F | 68.4°F | 0.02 | <1 | <1 | <1 | 13 h 30 min |
| September | 71°F | 64°F | 67.3°F | 0.16 | 1 | <1 | <1 | 12 h 30 min |
| October | 70°F | 58°F | 63.9°F | 0.57 | 2 | <1 | <1 | 11 h 20 min |
| November | 67°F | 51°F | 59.1°F | 0.76 | 3 | <1 | <1 | 10 h 30 min |
| December | 63°F | 47°F | 54.9°F | 1.57 | 5 | <1 | <1 | 10 h |
| Year (annual) | 66°F | 56°F | 60.9°F | 10.27 | 34 | 1 | <1 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 17°C | 8°C | 12.8°C | 56 mm |
| February | 17°C | 9°C | 12.8°C | 60 mm |
| March | 17°C | 10°C | 13.5°C | 36 mm |
| April | 17°C | 12°C | 14.7°C | 20 mm |
| May | 18°C | 14°C | 16.3°C | 7 mm |
| June | 19°C | 16°C | 17.7°C | 2 mm |
| July | 21°C | 18°C | 19.7°C | 1 mm |
| August | 22°C | 19°C | 20.2°C | 1 mm |
| September | 22°C | 18°C | 19.6°C | 4 mm |
| October | 21°C | 15°C | 17.7°C | 14 mm |
| November | 19°C | 11°C | 15.1°C | 19 mm |
| December | 17°C | 8°C | 12.7°C | 40 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00046377; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
Which months are mildest at Oceanside Marina?
Normal highs sit between 65°F and 85°F in June, July, August, September, October and November. Of those, August has the fewest days with rain (0).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00046377.
How hot and how cold does it get at Oceanside Marina?
In a normal year in Oceanside Marina, 1 day a year reaches 90°F, nights almost never fall to freezing and 34 days bring measurable precipitation.
- Days at 90°F or more
- 1a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- fewer than 1a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 34a normal year
The highest temperature in this station's record (since 1910) is 108°F, on September 26, 1963; the lowest is 20°F, on January 14, 1963.
The wettest calendar year on that record is 2023, with 23.11 in.
Source: NOAA NCEI 1991-2020 annual normals, station USC00046377; records: ACIS (NOAA Regional Climate Centers), station USC00046377. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Oceanside Marina?
Over a year 87% of the sunlight that would reach the ground under clear skies gets through the clouds at Oceanside Marina, 5.4 kWh per square metre a day. August is the sunniest month (92%) and February the cloudiest (83%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 85% | 3.3 |
| February | 83% | 4.1 |
| March | 85% | 5.4 |
| April | 86% | 6.5 |
| May | 83% | 6.9 |
| June | 85% | 7.3 |
| July | 89% | 7.4 |
| August | 92% | 7.0 |
| September | 91% | 6.0 |
| October | 88% | 4.6 |
| November | 87% | 3.6 |
| December | 83% | 2.9 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How many heating and cooling degree days does Oceanside Marina record?
A normal year at Oceanside Marina brings 1,827 heating degree days, 66% fewer than the median U.S. place (5,373), and 342 cooling degree days, 62% fewer than the median (908). Two months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 4,005 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 313 | 2 |
| February | 281 | 1 |
| March | 271 | 2 |
| April | 200 | 2 |
| May | 120 | 4 |
| June | 52 | 14 |
| July | 7 | 83 |
| August | 4 | 111 |
| September | 13 | 83 |
| October | 67 | 31 |
| November | 187 | 9 |
| December | 312 | 1 |
| Year (annual) | 1,827 | 342 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00046377. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Have recent years at Oceanside Marina been warmer than normal?
2025 averaged 60.8°F, 0.1°F below the 1991-2020 normal of 60.9°F. 1 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 60.7°F | −0.2°F | 10.15 |
| 2022 | 61.8°F | +0.9°F | 5.72 |
| 2023 | 60.4°F | −0.5°F | 23.11 |
| 2024 | 60.3°F | −0.6°F | 13.45 |
| 2025 | 60.8°F | −0.1°F | 13.09 |
Over 54 complete years from 1945 to 2025, the station's annual mean temperature rose at a fitted 5.2°F per century (+0.29°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00046377; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Oceanside Marina's climate compare?
Oceanside Marina is warmer than 104 of the 219 places with their own NOAA record in California, and wetter than 44. Across the 7,247 U.S. stations with normals, its annual mean of 60.9°F is warmer than 77%.
In the Köppen classification computed from these normals, Oceanside Marina is BSk: cold semi-arid steppe. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Oceanside Marina share this climate record?
Camp Pendleton South has no NOAA station with 1991-2020 normals of its own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Camp Pendleton South, CA15,011 people · 2 mi N
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Oceanside Marina's climate
What is the coldest month at Oceanside Marina?
December, with a normal high of 63°F and a normal low of 47°F. The warmest is August (71°F by day, 66°F at night).
Does it snow at Oceanside Marina?
Rarely: NOAA's normal is no measurable snow a year.
What is the rainiest month at Oceanside Marina?
February, with 2.36 in of precipitation in a normal year; the driest is August with 0.02 in.
What plant hardiness zone is Oceanside Marina in?
The USDA's 2023 map puts Oceanside Marina in zone 10a in ZIP code 92054, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 36°F (18 years, 1991-2020): zone 10b.
Nearby and next
- California climateThe statewide normals and every place in the state
- Oceanside, CA2 miles from this station, 61.0°F a year
- Camp Pendleton Marine Corps Air Station, CA7 miles from this station, 62.3°F a year
- Carlsbad, CA9 miles from this station, 62.5°F a year
- Vista, CA9 miles from this station, 62.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made