Oceanside in december: average Weather, Temperature and Climate
Weather in Oceanside in december 2026
The weather in Oceanside in the month of december comes from statistical datas on the last years. You can view the weather statistics the entire month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout december
good weather
Weather at 6am
56°F
Clear/Sunny
60% of time
19%
11%
7%
Weather at 12pm
65°F
Clear/Sunny
64% of time
18%
11%
6%
Weather at 6pm
58°F
Clear/Sunny
62% of time
18%
11%
5%
Weather at 3am
54°F
62%
17%
9%
9%
Evolution of daily average temperature and precipitation in Oceanside in december
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Oceanside in december.
The climate of Oceanside in december is good
the weather in Oceanside in december is quite dry (with 3.3in of precipitation over 3 days). It should be noted a worsening from the previous month since in november there is an average of 1.5in of precipitation over 2 days.
The climate is quite cool in that locality the month of december, but it is liveable when dressing warm. The thermometer averaged maximum of 65°F. On average, the recorded minimum temperature is 56°F. Thus, the mean temperature average on this month of december in Oceanside is 59°F. Note that seasonal normals in contrast with those observed in Oceanside in the month of december with a maximum record of 81°F in 2010 and a minimum record of 38°F in 2010. You can hope to have about 16 days with temperatures over 65°F, or 52% of time.
In december in Oceanside, the days on average last 09:58. Sunrise is at 06:46 and sets at 16:44.
With good weather conditions, december is recommended to go in Oceanside in California.
Seasonal average climate and temperature of Oceanside in december
Check below seasonal norms These datas are set from the weather statements of the past years of the month of december.
| December | |||||
| Outside temperature | |||||
| Average temperature | 59°F | ||||
| Highest temperature | 65°F | ||||
| Lowest temperature | 56°F | ||||
| Highest record temperature | 81°F (2010) | ||||
| Lowest record temperature | 38°F (2010) | ||||
| Number of days at +86°F | 0 day(s) (0%) | ||||
| Number of days at +65°F | 16 day(s) (52%) | ||||
| Sea temperature | |||||
| Average sea temperature | 61°F | ||||
| Lowest sea temperature | 59°F | ||||
| Highest sea temperature | 63°F | ||||
| Wind | |||||
| Wind speed | 14km/h | ||||
| Wind temperature | 54°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 3.3in | ||||
| Number of days with rainfall | 3 day(s) (11%) | ||||
| Record daily rainfall | 3.6in (2010) | ||||
| Other climate data | |||||
| Humidity | 66% | ||||
| Visibility | 9.64km | ||||
| Cloud cover | 24% | ||||
| UV index | 5 | ||||
| Daily sunshine hours | 8 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:46 | ||||
| Time of sunset | 16:44 | ||||
| Length of day | 09:58 | ||||
| Our opinion about the weather in december | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last december?
Here is the day by day recorded weather in Oceanside in december 2025:
50°F to 70°F
47°F to 59°F
56°F to 59°F
47°F to 67°F
45°F to 65°F
54°F to 63°F
52°F to 61°F
54°F to 68°F
50°F to 74°F
54°F to 67°F
56°F to 61°F
54°F to 61°F
56°F to 63°F
56°F to 65°F
56°F to 65°F
56°F to 63°F
54°F to 61°F
54°F to 70°F
58°F to 63°F
56°F to 61°F
56°F to 63°F
56°F to 63°F
58°F to 61°F
63°F to 65°F
63°F to 65°F
58°F to 59°F
52°F to 56°F
45°F to 61°F
43°F to 67°F
54°F to 58°F
61°F to 67°F
Map: other cities in California in december
Cities near Oceanside:
| Carlsbad in december | good weather |
| Encinitas in december | good weather |
| San Clemente in december | good weather |
| Temecula in december | tolerable weather |
| Cleveland National Forest in december | tolerable weather |
| San Diego in december | good weather |
| Chula Vista in december | good weather |
| Newport Beach in december | good weather |
| Huntington Beach in december | good weather |
| Anza-Borrego Desert State Park in december | tolerable weather |
| San Bernardino in december | tolerable weather |
| Palm Springs in december | tolerable weather |
Click over cities on the map for information about the weather in december.
Oceanside
perfect weather
good
tolerable
bad
very bad
Weather data for Oceanside in december:
Weather data for Oceanside for december are derived from an average of the weather forecast since 2009 in Oceanside. There is a margin of error and these forecasts are to be considered as general information only. The weather in Oceanside can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Oceanside.