San Diego Holiday Half Marathon

San Diego, CA, USADecember 19, 2026
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Race Day Weather

partly-cloudy-day
44°
68° high
Breezy
Dry

Cool start, warming trend

Runners will face a temperature increase from 51°F at the start to 68°F by the finish, with average humidity at 40% and a dew point of 36°F. Wind will be a gentle breeze from the SW at 8 mph, with gusts up to 28 mph. This is an ideal day for a fast race, but runners should remain mindful of the warming trend and adjust their pacing accordingly.

Race day forecast available in 249 days
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Pace Calculator

Distance: 13.1mi
0:00:00
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Pace
Weather Adj.
Common Goals:

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

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 68°F and a low of 44°F with a 0% chance of rain.

Historical Weather

Based on 3 years of data
Avg Temp
69°F
L:49° H:71°
RunScore
8
Conditions
Rain Freq
0%
0 of 3 yrs
Wind7mph
Dew42°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore
2025
partly-cloudy-day
51°/65°-
9
2024
clear-day
47°/69°-
8
2023
clear-day
51°/79°-
8