Race Day Weather
Cool and calm, ideal conditions
Runners will face a steady temperature from 48°F to 50°F, with high humidity at 95%. Winds will be light, coming from the SE at 9 mph. Given the cool temperatures, runners can maintain their pace, but hydration will be key due to the high humidity.
Pace Calculator
Hosted at the magnificent Pembrey Country Park in Carmarthenshire this race showcases the best of coast and country on a route that covers both the half and full marathon distance. This is a race for everyone, so whether you love inspiring green spaces or are a sucker for coastal views, then you’ll run happy, as this has it all! Boasting a maximum elevation of only 18 metres and an overall gain of 110 metres for the full marathon distance, this race offers a superb opportunity to achieve your personal best! It’s the perfect spring race that is flat, friendly, and great for first-timers or PB chasers! Source
Historical Weather
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2025 |  | 43°/51° | - | 33° | |
2024 |  | 50°/54° | Light | 50° | |
2022 | | 51°/60° | - | 43° | |
2019 | | 43°/50° | - | 30° | |
2018 | | 50°/54° | Light | 49° | |
2017 | | 54°/57° | - | 47° |