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Race Overview
Run through 300 foot tall, 1500 year-old Coastal Redwoods, lush stream canyons, open meadows, pine and oak forests, and high dry chaparral-covered ridges. The Half Marathon, 30K, Marathon, and 50K events cross the San Lorenzo River (shown below) multiple times!
WikipediaNews
July 12, 2023
Upcoming marathons and other races happening this weekend.
FAQ
When is the 2026 San Lorenzo River Marathon?
The 2026 San Lorenzo River Marathon will be held on Saturday July 11, 2026.
Is the San Lorenzo River Marathon a Boston Marathon Qualfier?
No, the San Lorenzo River Marathon is NOT a Boston Marathon qualifier.
San Lorenzo River Marathon Weather History
San Lorenzo River Marathon Weather Averages
Average Temp: 61°, Average Low: 54°, Average High: 71°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 57° | 59° | 63° | 66° | 68° | 70° | 71° | 70° |
| Feel | 57° | 59° | 63° | 66° | 68° | 70° | 71° | 70° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 2mph | 3mph | 4mph | 6mph | 7mph | 9mph | 10mph | 10mph |
| Dew | 53° | 53° | 53° | 53° | 53° | 53° | 53° | 53° |
| RunScore |  | |  | | | | | |
San Lorenzo River Marathon 2024
Jul 13, 2024
Partly cloudy throughout the day.
Low: 55°, High: 70°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp |  57° | 59° | 62° | 65° | 67° | 65° | 70° | 67° |
| Feel | 57° | 59° | 62° | 65° | 67° | 65° | 70° | 67° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 3mph | 4mph | 6mph | 10mph | 7mph | 10mph | 11mph | 9mph |
| Dew | 54° | 53° | 54° | 55° | 56° | 55° | 57° | 55° |
| RunScore | | | | | | | | |
San Lorenzo River Marathon 2023
Jul 15, 2023
Clearing in the afternoon.
Low: 55°, High: 74°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 55° | 59° | 65° | 68° | 69° | 73° | 74° | 73° |
| Feel | 55° | 59° | 65° | 68° | 69° | 73° | 74° | 73° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 0mph | 0mph | 4mph | 6mph | 8mph | 7mph | 8mph | 8mph |
| Dew | 54° | 55° | 56° | 56° | 56° | 57° | 57° | 57° |
| RunScore | | | | | | | | |
San Lorenzo River Marathon 2022
Jun 18, 2022
Clearing in the afternoon.
Low: 50°, High: 71°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 56° | 59° | 62° | 64° | 66° | 70° | 71° | 71° |
| Feel | 56° | 59° | 62° | 64° | 66° | 70° | 71° | 71° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 1mph | 7mph | 7mph | 12mph | 10mph | 10mph | 15mph | 18mph |
| Dew | 48° | 49° | 49° | 48° | 47° | 44° | 44° | 46° |
| RunScore | | | | | | |  |  |
San Lorenzo River Marathon 2021
Jun 19, 2021
Clearing in the afternoon.
Low: 55°, High: 71°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 57° | 59° | 62° | 66° | 70° | 70° | 71° | 71° |
| Feel | 57° | 59° | 62° | 66° | 70° | 70° | 71° | 71° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 0mph | 4mph | 5mph | 4mph | 9mph | 8mph | 11mph | 10mph |
| Dew | 53° | 54° | 53° | 55° | 55° | 55° | 56° | 55° |
| RunScore | | | | | | | | |
San Lorenzo River Marathon 2020
Jun 20, 2020
Partly cloudy throughout the day.
Low: 55°, High: 68°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 56° | 57° | 58° | 61° | 64° | 66° | 67° | 68° |
| Feel | 56° | 57° | 58° | 61° | 64° | 66° | 67° | 68° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 4mph | 4mph | 3mph | 1mph | 6mph | 8mph | 10mph | 9mph |
| Dew | 53° | 53° | 53° | 54° | 53° | 54° | 55° | 55° |
| RunScore | | | | | | | | |
San Lorenzo River Marathon 2019
Jun 22, 2019
Clearing in the afternoon.
Low: 53°, High: 73°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 55° | 58° | 63° | 68° | 73° | 72° | 71° | 72° |
| Feel | 55° | 58° | 63° | 68° | 73° | 72° | 71° | 72° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 0mph | 0mph | 1mph | 1mph | 7mph | 13mph | 9mph | 10mph |
| Dew | 52° | 52° | 53° | 54° | 56° | 54° | 54° | 53° |
| RunScore | | | | | | | | |
San Lorenzo River Marathon 2018
Jun 24, 2018
Partly cloudy throughout the day.
Low: 58°, High: 71°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 60° | 63° | 64° | 68° | 68° | 69° | 69° | 71° |
| Feel | 60° | 63° | 64° | 68° | 68° | 69° | 69° | 71° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 6mph | 6mph | 7mph | 12mph | 10mph | 10mph | 8mph | 8mph |
| Dew | 55° | 55° | 56° | 56° | 56° | 57° | 57° | 58° |
| RunScore | | | | | | | | |
San Lorenzo River Marathon 2017
Jun 24, 2017
Partly cloudy throughout the day.
Low: 58°, High: 70°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 58° | 60° | 63° | 66° | 68° | 70° | 69° | 69° |
| Feel | 58° | 60° | 63° | 66° | 68° | 70° | 69° | 69° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 0mph | 1mph | 5mph | 4mph | 5mph | 8mph | 6mph | 10mph |
| Dew | 57° | 58° | 58° | 58° | 58° | 58° | 59° | 59° |
| RunScore | | | | | | | | |
San Lorenzo River Marathon 2016
Jun 26, 2016
Clear conditions throughout the day.
Low: 51°, High: 77°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 55° | 61° | 65° | 68° | 72° | 76° | 77° | 75° |
| Feel | 55° | 61° | 65° | 68° | 72° | 76° | 77° | 75° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 1mph | 5mph | 6mph | 6mph | 8mph | 8mph | 10mph | 9mph |
| Dew | 53° | 54° | 55° | 55° | 53° | 52° | 51° | 51° |
| RunScore | | | | | | | | |
San Lorenzo River Marathon 2015
Jun 13, 2015
Partly cloudy throughout the day.
Low: 56°, High: 70°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 57° | 59° | 61° | 65° | 68° | 68° | 70° | 68° |
| Feel | 57° | 59° | 61° | 65° | 68° | 68° | 70° | 68° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 2mph | 4mph | 4mph | 5mph | 8mph | 7mph | 10mph | 11mph |
| Dew | 56° | 55° | 55° | 55° | 55° | 57° | 57° | 57° |
| RunScore | | | | | | | | |
San Lorenzo River Marathon 2014
Jun 21, 2014
Clearing in the afternoon.
Low: 52°, High: 69°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 57° | 58° | 62° | 66° | 69° | 69° | 69° | 68° |
| Feel | 57° | 58° | 62° | 66° | 69° | 69° | 69° | 68° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 5mph | 3mph | 1mph | 2mph | 7mph | 9mph | 7mph | 10mph |
| Dew | 52° | 51° | 51° | 51° | 50° | 51° | 48° | 49° |
| RunScore | | | | | | | | |
San Lorenzo River Marathon 2013
Jun 22, 2013
Clear conditions throughout the day.
Low: 50°, High: 73°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 54° | 58° | 64° | 67° | 72° | 71° | 73° | 72° |
| Feel | 54° | 58° | 64° | 67° | 72° | 71° | 73° | 72° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 1mph | 0mph | 0mph | 4mph | 6mph | 9mph | 14mph | 11mph |
| Dew | 50° | 50° | 50° | 51° | 50° | 51° | 49° | 51° |
| RunScore | | | | | | | | |
San Lorenzo River Marathon 2012
Jun 23, 2012
Clearing in the afternoon with rain.
Low: 55°, High: 67°, Light Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 56° | 58° | 61° | 61° |  64° | 65° | 67° | 66° |
| Feel | 56° | 58° | 61° | 61° | 64° | 65° | 67° | 66° |
| Rain | - | - | - | - | light | - | - | - |
| Wind | 6mph | 6mph | 7mph | 3mph | 8mph | 9mph | 11mph | 12mph |
| Dew | 51° | 48° | 48° | 47° | 47° | 46° | 44° | 46° |
| RunScore | | | | | | | | |
San Lorenzo River Marathon 2011
Jun 13, 2011
Clearing in the afternoon.
Low: 54°, High: 71°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 55° | 57° | 62° | 65° | 66° | 67° | 69° | 70° |
| Feel | 55° | 57° | 62° | 65° | 66° | 67° | 69° | 70° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 1mph | 0mph | 2mph | 8mph | 7mph | 6mph | 9mph | 8mph |
| Dew | 51° | 51° | 52° | 55° | 54° | 55° | 56° | 57° |
| RunScore | | | | | | | | |
San Lorenzo River Marathon 2010
Jun 13, 2010
Clear conditions throughout the day.
Low: 54°, High: 75°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 61° | 65° | 69° | 71° | 72° | 73° | 73° | 75° |
| Feel | 61° | 65° | 69° | 71° | 72° | 73° | 73° | 75° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 3mph | 5mph | 6mph | 7mph | 7mph | 8mph | 10mph | 8mph |
| Dew | 52° | 52° | 54° | 54° | 55° | 54° | 54° | 54° |
| RunScore | | | | | | | | |