Weather in Oceanside, California, United States in December
In an average December, Oceanside sees a daily high around 64°F and a low around 55°F, based on 1981–2026 of local climate records.
| Average high | 64°F |
|---|---|
| Typical high range | 58°F to 70°F |
| Average low | 55°F |
| Typical low range | 51°F to 59°F |
| Average daily precipitation | 0.10 in |
December records
The most extreme December on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total December accumulation.
High
Highest
77°F
2017-12-29
Lowest
50°F
1990-12-22
Low
Highest
65°F
2025-12-09
Lowest
41°F
1990-12-23
Feels-like
Highest
77°F
2017-12-29
Lowest
32°F
1987-12-25
Humidity
Highest
15.0 g/m³
2014-12-03
Lowest
3.5 g/m³
1990-12-22
Wind
Highest
32 mph
2009-12-07
Lowest
4 mph
2000-12-01
Precip
Wettest
7.48 in
2010
Driest
0.03 in
2000
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