San Diego CA Recent January Temperatures, Rainfall

The numbers here describe what the January weather in San Diego, California was like for every year since 2010. A series of tables gives January data by year for temperature and precipitation.

They begin with average maximum and minimum temperatures in degrees Fahrenheit and Celsius. That's followed by how many hot or cold days occurred each January. Then there's information on how much rain actually landed this month during recent years, as well as how often San Diego had wet weather.

The climate data come from weather measurements made at San Diego's International Airport.

Temperature

January temperature averages by year in San Diego
High °F	Low °F	Year	High °C	Low °C
64	48	2023	18	9
67	47	2022	19	8
68	48	2021	20	9
68	49	2020	20	10
66	51	2019	19	11
70	53	2018	21	12
64	51	2017	18	11
65	52	2016	19	11
69	52	2015	21	11
71	52	2014	21	11
65	47	2013	18	8
67	49	2012	20	9
69	51	2011	21	11
67	50	2010	19	10

Number of days in January when the temperature in San Diego dropped to 32 or below, or rose to at least 70 degrees Fahrenheit
32 °F 0 °C	Year	70 °F 21 °C
0	2023	2
0	2022	9
0	2021	11
0	2020	9
0	2019	8
0	2018	12
0	2017	5
0	2016	7
0	2015	17
0	2014	15
0	2013	7
0	2012	11
0	2011	14
0	2010	9

Rain

This table gives the total precipitation that fell on San Diego during January in each year from 2010. The number of days with precipitation counts the days when rainfall amounted to 0.01 inches (0.3 millimeters) or more.

Total rainfall for January in San Diego
Days	Year	Inches	Millimetres
14	2023	5.2	131
2	2022	0.2	4
7	2021	1.8	46
3	2020	0.5	12
9	2019	2.8	71
5	2018	1.8	45
11	2017	3.0	77
9	2016	3.2	82
4	2015	0.4	11
1	2014	0.0	0
5	2013	1.2	31
4	2012	0.4	10
3	2011	0.3	8
9	2010	3.4	86

San Diego - Recent January Temperatures and Rainfall

Temperature

Rain

Reference

More on Weather in San Diego