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Historical weather

Historical Race Day Weather for the San Juan Island Marathon

See historical race day weather for the San Juan Island Marathon, including start temperature, humidity, wind, race day temperatures, PR score, and course score.

Weather Averages for Last 9 Years

Race day snapshot
Clear
Clear
Most common race morning weather across the last 9 years.
Start Line Conditions
Start Temp 56°F 13°C
Start Humidity 80% Humidity
Wind SSW 7 mph
Race day high 69°F 21°C
Race day low 50°F 10°C
PR Score 92.52 Weather-influenced race day scoring
Course Score 93.42 Course-only Score

Race Day Weather by Year

Most recent years appear first so you can quickly compare start conditions, temperatures, wind, and scores across different editions of the race.

June 14, 2025

Race day snapshot
Overcast
Overcast
Start Line Conditions
Start Temp 51°F 11°C
Start Humidity 76% Humidity
Wind SSW 8 mph Wind
Race day high 65°F 18°C
Race day low 49°F 9°C
PR Score 92.36 Normal score 91.58
Course Score 92.36 Course-only Score
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June 15, 2024

Race day snapshot
Rain, Partially cloudy
Start Line Conditions
Start Temp 51°F 11°C
Start Humidity 83% Humidity
Wind SW 7 mph Wind
Race day high 58°F 14°C
Race day low 49°F 9°C
PR Score 92.27 Normal score 91.58
Course Score 92.36 Course-only Score

June 17, 2023

Race day snapshot
Partially cloudy
Partially cloudy
Start Line Conditions
Start Temp 51°F 11°C
Start Humidity 86% Humidity
Wind WSW 9 mph Wind
Race day high 62°F 17°C
Race day low 49°F 9°C
PR Score 92.02 Normal score 91.58
Course Score 92.36 Course-only Score

June 20, 2021

Race day snapshot
Clear
Clear
Start Line Conditions
Start Temp 63°F 17°C
Start Humidity 81% Humidity
Wind N 7 mph Wind
Race day high 78°F 26°C
Race day low 52°F 11°C
PR Score 90.16 Normal score 91.58
Course Score 92.36 Course-only Score

June 16, 2019

Race day snapshot
Partly Cloudy
Partly Cloudy
Start Line Conditions
Start Temp 57°F 14°C
Start Humidity 90% Humidity
Wind SSW 5 mph Wind
Race day high 70°F 21°C
Race day low 54°F 12°C
PR Score 90.83 Normal score 91.58
Course Score 92.36 Course-only Score

June 17, 2018

Race day snapshot
Clear
Clear
Start Line Conditions
Start Temp 63°F 17°C
Start Humidity 67% Humidity
Wind NW 5 mph Wind
Race day high 75°F 24°C
Race day low 56°F 13°C
PR Score 90.87 Normal score 91.58
Course Score 92.36 Course-only Score

June 19, 2016

Race day snapshot
Mostly Cloudy
Mostly Cloudy
Start Line Conditions
Start Temp 52°F 11°C
Start Humidity 85% Humidity
Wind SE 9 mph Wind
Race day high 67°F 19°C
Race day low 49°F 9°C
PR Score 95.30 Normal score 91.58
Course Score 95.55 Course-only Score

June 21, 2015

Race day snapshot
Mostly Clear
Mostly Clear
Start Line Conditions
Start Temp 56°F 13°C
Start Humidity 77% Humidity
Wind NW 6 mph Wind
Race day high 72°F 22°C
Race day low 48°F 9°C
PR Score 94.43 Normal score 91.58
Course Score 95.55 Course-only Score

June 22, 2014

Race day snapshot
Clear
Clear
Start Line Conditions
Start Temp 58°F 14°C
Start Humidity 77% Humidity
Wind SE 4 mph Wind
Race day high 72°F 22°C
Race day low 43°F 6°C
PR Score 94.43 Normal score 91.58
Course Score 95.55 Course-only Score