Carlsbad Marathon

Carlsbad, CA, USA · January 17, 2027

48°·67° high·Light·Dry

Weather

Race Day Weather

48°at start

68° high

Light

Dry

Cool start — fast day potential, big temp swing

A cool 48°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temps will climb significantly to 68°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.

Race day forecast available in 204 days

4 AM

5 AM

6 AM

7 AM

8 AM

9 AM

10 AM

11 AM

12 PM

1 PM

2 PM

3 PM

Pre-raceRace windowPost-race

Get forecast alerts for Carlsbad 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 Carlsbad Marathon started out as the San Diego Marathon. It is said to be one of the oldest races on the West Coast. In 1978, The Heart of San Diego Marathon, was created and thus there were 2 marathons in San Diego. When InMotion Inc. was hired to put on the marathon, they made the decision to combine the two marathons and then eventually the marathon was moved from San Diego to Carlsbad. Wikipedia

Website

Course Map

FAQ

When is the 2027 Carlsbad Marathon?

The 2027 Carlsbad Marathon will be held on Sunday January 17, 2027.

Is the Carlsbad Marathon a Boston Marathon Qualifier?

Yes, the Carlsbad Marathon is an official Boston Marathon qualifier.

What will the weather be like for the 2027 Carlsbad Marathon?

The forecast calls for a high of 67°F and a low of 46°F with a 7% chance of rain.

Historical Weather

Based on 29 years of data

Avg Temp

65°F

L:47° H:66°

RunScore

Conditions

Rain Freq

10%

3 of 29 yrs

Wind8mph

Dew43°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2026 Carlsbad Marathon Clear conditions throughout the day. 2026	52°/78°	-	33°
2025 Carlsbad Marathon Partly cloudy throughout the day. 2025	43°/58°	-	43°
2024 Carlsbad Marathon Partly cloudy throughout the day. 2024	48°/60°	-	44°
2023 Carlsbad Marathon Cloudy skies throughout the day with a chance of rain throughout the day. 2023	57°/59°	Light	52°
2022 Carlsbad Marathon Partly cloudy throughout the day. 2022	57°/70°	-	40°
2021 Carlsbad Marathon Clear conditions throughout the day. 2021	47°/77°	-	25°
2020 Carlsbad Marathon Clear conditions throughout the day. 2020	42°/70°	-	37°
2019 Carlsbad Marathon Clear conditions throughout the day. 2019	49°/71°	-	47°
2018 Carlsbad Marathon Clear conditions throughout the day. 2018	46°/69°	-	43°
2018 Carlsbad Marathon Clear conditions throughout the day. 2018	55°/79°	-	37°
2017 Carlsbad Marathon Partly cloudy throughout the day. 2017	51°/62°	-	50°
2016 Carlsbad Marathon Clearing in the afternoon. 2016	46°/71°	-	50°
2015 Carlsbad Marathon Clear conditions throughout the day with morning rain. 2015	46°/71°	-	38°
2014 Carlsbad Marathon Clear conditions throughout the day. 2014	45°/74°	-	22°
2013 Carlsbad Marathon Cloudy skies throughout the day with rain clearing later. 2013	53°/57°	Light	47°
2012 Carlsbad Marathon Partly cloudy throughout the day with late afternoon rain. 2012	46°/59°	-	45°
2011 Carlsbad Marathon Clear conditions throughout the day with morning rain. 2011	44°/79°	-	25°
2010 Carlsbad Marathon Clear conditions throughout the day with rain clearing later. 2010	40°/59°	-	41°
2009 Carlsbad Marathon Partly cloudy throughout the day with rain. 2009	50°/59°	-	47°
2008 Carlsbad Marathon Clear conditions throughout the day. 2008	37°/58°	-	37°
2007 Carlsbad Marathon Partly cloudy throughout the day. 2007	44°/64°	-	39°
2006 Carlsbad Marathon Clearing in the afternoon with early morning rain. 2006	46°/58°	-	45°
2005 Carlsbad Marathon Partly cloudy throughout the day. 2005	40°/75°	-	41°
2004 Carlsbad Marathon Partly cloudy throughout the day. 2004	51°/61°	-	47°
2003 Carlsbad Marathon Partly cloudy throughout the day. 2003	41°/65°	-	45°
2002 Carlsbad Marathon Clear conditions throughout the day. 2002	38°/64°	-	36°
2001 Carlsbad Marathon Clear conditions throughout the day. 2001	36°/67°	-	38°
2000 Carlsbad Marathon Partly cloudy throughout the day with rain in the morning and afternoon. 2000	50°/57°	Light	46°
1999 Carlsbad Marathon Partly cloudy throughout the day. 1999	56°/64°	-	53°