
2027 Cal Tri Castaic Lake - 6.19.27
Castaic, CA
Sat, Jun 19, 2027
In 303 days · Sat, Jun 19, 2027
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Saturday, June 19th, 2027
Castaic Lake Paradise Cove, Castaic CA
See race page
60–87°F · low rain risk
See last 10 years
On this date: rain 1 of the last 10 years
2026
59–76°F
rain
2025
67–86°F
dry
2024
50–84°F
dry
2023
48–65°F
dry
2022
49–76°F
dry
2021
67–102°F
dry
2020
65–91°F
dry
2019
64–93°F
dry
2018
58–90°F
dry
2017
74–101°F
dry
Best months to race in California →
About this race
2027 Cal Tri Castaic Lake - 6.19.27
Event Options
- Variety: 12 EVENT OPTIONS including 6 Olympic distance events and 6 Sprint distance events.
- Types of Events: Olympic (Triathlon, RunBikeRun, SwimBike, SwimRun, 1640 Yard Swim & 10K Run) and Sprint (Triathlon, RunBikeRun, SwimBike, SwimRun, 400 yard Swim & 5K Run).
- Triathlon Explanation: Triathlon = swim + bike + run. Swim and run distances are standard, but bike distances vary.
- Course Maps: Check out the course maps for more detailed information.
Castaic Lake
- Location: Takes place at scenic Castaic Lake just 20 miles north of Los Angeles.
- Recreation Area: Castaic Lake Recreation Area is an 11,200-acre multi-use facility.
- Activities: Offers boating, world-class fishing, hiking, walking, horseback riding, wakeboarding, jet-skiing, camping, picnicking, kayaking, and sailing.
- Temperature: August is a great time to enjoy the water in the high 60s.
The Course
- Swim Course: Modified V shape in Paradise Cove with 8 lifeguards on paddleboards.
- Bike Course: Utilizes back roads to limit interaction with cars: includes U-turns.
- Run Course: Primarily on the rolling trails overlooking Castaic Lake.
- Safety Note: Athletes should slow down at the turn around points on the bike course.
Air Temperature (Avg)
- June Weather: Morning temperatures are often cooler with early morning fog burning off.
- Expected Temperature: Event will possibly be around 60 degrees.
- Afternoon Highs: Reaches the mid 80s.
- Comfort Advisory: Be prepared for varying temperatures.
Water Temperature (Avg)
- Typical Range: Water temps in June typically range in the mid to high 60s.
- Race Updates: Email updates will be sent out closer to the race.
- Discount Opportunity: Use the 20% 2026CALTRI discount code at blueseventy.
- Note: Fusion wetsuits not eligible for discount.
For more information, visit the race page: Cal Tri Castaic Lake 2027.
Course map
Train with a club
Run clubs near Castaic to train with before race day.
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