San Diego Holiday Half Marathon

San Diego, CA, USA · December 19, 2026
partly-cloudy-day45°·55° high·Light·Dry
10
Register

Race Day Weather

partly-cloudy-day
45°at start
63° high
Light
Dry
Your goal
0:00:00

Cool conditions, light winds ahead

Runners will face a temperature range from 45°F to 63°F, with average humidity at 39% and a dew point of 32°F. Light winds from the SSE at 6 mph will provide a slight tailwind throughout. No need for rain gear, but runners should stay hydrated and maintain a steady pace as temperatures rise.

Race day forecast available in 40 days
partly-cloudy-night10
partly-cloudy-night10
partly-cloudy-day10
partly-cloudy-day10
partly-cloudy-day10
partly-cloudy-day9
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day9

Pace Calculator

13.1mi
0:00:00
HH:MM:SS
Pace
—

Enter a finish time to see what race day does to it.

Common Goals:

Get forecast alerts for San Diego Holiday Half Marathon

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

Race Info

The San Diego Holiday Half Marathon is a fast 13.1 mile course that starts on Penasquitos Drive and Carmel Mountain Road, then travels SW along Carmel Mountain Rd (your only ‘real’ hill at mile 1.5), along the 56 bike path and finishes at the beautiful Torrey Pines State Beach. The race includes a 711-foot net elevation drop along the “rolling” downhill bike path, which also makes it a personal best candidate. This popular winter half has been a sell out event every year and sure to sell out for 2023. Get your end of the year PR!!! Source

Race weekend

Saturday, December 19
7:30 AMHalf Marathon (13.1 mi)
7:30 AM5K (3.1 mi)
Area Map

Course Map

FAQ

When is the 2026 San Diego Holiday Half Marathon?

The 2026 San Diego Holiday Half Marathon will be held on Saturday December 19, 2026.

What will the weather be like for the 2026 San Diego Holiday Half Marathon?

The forecast calls for a high of 64°F and a low of 45°F with a 8% chance of rain.

Historical Weather

Based on 3 years of data
Avg Temp
51°F
L:46° H:57°
RunScore
9
Conditions
Rain Freq
0%
0 of 3 yrs
Wind3mph
Dew39°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
partly-cloudy-day
48°/54°-
9
2024
clear-day
45°/55°-
9
2023
clear-day
47°/63°-
9