Bellingham Bay Half Marathon

Bellingham Bay Half Marathon 2025 Course Analysis

Bellingham Bay Half Marathon is a half marathon held in Bellingham, United States of America, scheduled for Sunday 21 September 2025. The course is run on road surface with 114m of total elevation gain, reaching a maximum altitude of 50m above sea level. For registration and full race details, visit the official Bellingham Bay Half Marathon website.

Elevation Profile

With 114m of elevation gain, this is a moderately undulating course. The route ranges from 0m to 50m above sea level (50m total range). While not completely flat, the elevation changes are manageable for most runners and shouldn't significantly impact pacing strategy.

Expected Race Day Weather

Based on historical weather data for September, the expected race day conditions are as follows. Moderate temperatures between 13°C and 18°C are expected. While comfortable for most runners, those targeting fast times should pay attention to hydration, as these temperatures can impact performance over the full distance. There is a high chance of rain (100%). Runners should prepare for wet conditions, including appropriate footwear and clothing choices.

Surface Type: Road

Bellingham Bay Half Marathon is run on road surfaces, which provide the fastest and most predictable conditions for marathon running. Road courses allow for consistent pacing and are typically the best choice for runners targeting a personal best time.

How Difficult Is Bellingham Bay Half Marathon?

Our difficulty rating for Bellingham Bay Half Marathon is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based half marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.

Looking for an easier marathon or a tougher challenge? You can also compare Bellingham Bay Half Marathon against other half marathons to find the right race for your goals.