Historical Race Day Weather for the San Francisco Marathon

July 26, 2026

Race day snapshot

Partially cloudy

Start Line Conditions

Start Temp 58°F 14°C

Start Humidity 91% Humidity

Wind WSW 9 mph Wind

Race day high 65°F 18°C

Race day low 58°F 14°C

PR Score 94.80 Normal score 95.73

Course Score 96.58 Course-only Score

Course-adjusted pacing

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July 27, 2025

Race day snapshot

Overcast

Start Line Conditions

Start Temp 57°F 14°C

Start Humidity 92% Humidity

Wind W 8 mph Wind

Race day high 62°F 17°C

Race day low 57°F 14°C

PR Score 95.03 Normal score 95.73

Course Score 96.44 Course-only Score

July 28, 2024

Race day snapshot

Overcast

Start Line Conditions

Start Temp 56°F 13°C

Start Humidity 90% Humidity

Wind SW 6 mph Wind

Race day high 61°F 16°C

Race day low 56°F 13°C

PR Score 95.17 Normal score 95.73

Course Score 96.44 Course-only Score

July 23, 2023

Race day snapshot

Overcast

Start Line Conditions

Start Temp 57°F 14°C

Start Humidity 83% Humidity

Wind SSW 5 mph Wind

Race day high 65°F 18°C

Race day low 56°F 13°C

PR Score 95.19 Normal score 95.73

Course Score 96.44 Course-only Score

July 24, 2022

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 56°F 13°C

Start Humidity 84% Humidity

Wind SSW 7 mph Wind

Race day high 58°F 14°C

Race day low 53°F 12°C

PR Score 96.02 Normal score 95.73

Course Score 96.44 Course-only Score

September 19, 2021

Race day snapshot

Overcast

Start Line Conditions

Start Temp 59°F 15°C

Start Humidity 91% Humidity

Wind W 6 mph Wind

Race day high 67°F 19°C

Race day low 58°F 14°C

PR Score 94.89 Normal score 95.73

Course Score 96.44 Course-only Score

July 28, 2019

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 59°F 15°C

Start Humidity 86% Humidity

Wind SW 4 mph Wind

Race day high 67°F 19°C

Race day low 58°F 14°C

PR Score 96.24 Normal score 95.73

Course Score 97.71 Course-only Score

July 29, 2018

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 54°F 12°C

Start Humidity 91% Humidity

Wind WSW 4 mph Wind

Race day high 65°F 18°C

Race day low 54°F 12°C

PR Score 97.10 Normal score 95.73

Course Score 97.71 Course-only Score

July 23, 2017

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 56°F 13°C

Start Humidity 87% Humidity

Wind SW 5 mph Wind

Race day high 69°F 21°C

Race day low 56°F 13°C

PR Score 96.70 Normal score 95.73

Course Score 97.71 Course-only Score

July 31, 2016

Race day snapshot

Cloudy

Start Line Conditions

Start Temp 57°F 14°C

Start Humidity 83% Humidity

Wind WNW 4 mph Wind

Race day high 75°F 24°C

Race day low 55°F 13°C

PR Score 96.43 Normal score 95.73

Course Score 97.71 Course-only Score

July 26, 2015

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 59°F 15°C

Start Humidity 88% Humidity

Wind WNW 4 mph Wind

Race day high 74°F 23°C

Race day low 59°F 15°C

PR Score 95.80 Normal score 95.73

Course Score 97.71 Course-only Score

July 27, 2014

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 62°F 17°C

Start Humidity 86% Humidity

Wind WNW 10 mph Wind

Race day high 77°F 25°C

Race day low 61°F 16°C

PR Score 95.29 Normal score 95.73

Course Score 97.71 Course-only Score

June 16, 2013

Race day snapshot

Cloudy

Start Line Conditions

Start Temp 54°F 12°C

Start Humidity 86% Humidity

Wind SW 7 mph Wind

Race day high 62°F 17°C

Race day low 54°F 12°C

PR Score 97.02 Normal score 95.73

Course Score 97.71 Course-only Score

July 29, 2012

Race day snapshot

Overcast

Start Line Conditions

Start Temp 55°F 13°C

Start Humidity 82% Humidity

Wind WSW 9 mph Wind

Race day high 70°F 21°C

Race day low 54°F 12°C

PR Score 97.23 Normal score 95.73

Course Score 97.71 Course-only Score

July 31, 2011

Race day snapshot

Overcast

Start Line Conditions

Start Temp 59°F 15°C

Start Humidity 77% Humidity

Wind SW 5 mph Wind

Race day high 71°F 22°C

Race day low 58°F 14°C

PR Score 96.54 Normal score 95.73

Course Score 97.71 Course-only Score

July 25, 2010

Race day snapshot

Overcast

Start Line Conditions

Start Temp 56°F 13°C

Start Humidity 83% Humidity

Wind W 10 mph Wind

Race day high 68°F 20°C

Race day low 55°F 13°C

PR Score 97.16 Normal score 95.73

Course Score 97.71 Course-only Score