Seacoast Half Marathon
Seacoast Half Marathon is a running race on October 25, 2026 in Portsmouth, NH, with an entry fee of $89.
- Date
- October 25, 2026 (94 days to go)
- Price
- $89
- Sport
- Running
From the Organizer
The Seacoast Half Marathon is one of the longest-running half marathons in coastal New Hampshire. This year's beneficiary is an amazing nonprofit dedicated to improving lives in the Greater Seacoast. So pick up your running shoes, gather your friends, and register for the feel-good race of the year. And consider going the extra mile for your neighbors in need by making a donation when you register. You can also set up your own fundraising page and get family and friends to help with your fundraising efforts.
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
56°
Typical Low
38°
Chance of Rain
35%
Based on US Climate Normals data from Greenland, 4 mi from the venue.
Host City
About Portsmouth, NH
Population
22,332
as of 2023
City Elevation
23 ft
Nearest Airport
PSM
Portsmouth International Airport at Pease · 3 mi
Major Hub
PWM
Portland International Jetport · 46 mi
Time Zone
Eastern Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Seacoast Half Marathon, put it on the calendar, and turn “someday” into a start date.
94
Days to train
- Race
- Seacoast Half Marathon
- Date
- October 25, 2026
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From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it’s the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
Running
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Coming Up
More Running races near Portsmouth, NH
Sabine Strong 3.3 & Kids Dash
1 Mile · 5K · From $10 · Newington Old Town Hall
Less than a mile away
Seacoast Cancer 5K Run/Walk
1 Mile · 5K · From $30 · 67 Corporate Drive
Less than a mile away
18th Annual Celebrate Pink 5K Run & Walk
5K · From $30 · Portsmouth Middle School
Less than a mile away
2nd Annual New England Ostomy 5k
5K · From $20 · Wallis Sands State Park
5 miles away
Plan your trip
Make it a Racecation
Coming from out of town? There's more to Portsmouth than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.
Plan your trip to PortsmouthFrequently Asked Questions (FAQs)
What is the Seacoast Half Marathon?+
When and where is the Seacoast Half Marathon?+
How do I register for the Seacoast Half Marathon?+
Seacoast Half Marathon
Oct 25, 2026