Colchester Half Marathon
Colchester, United Kingdom · Expected Sunday 16 May 2027Date to be confirmed
Difficulty Calculator
Adjusted Time
1:43:14
Time difference: -1.8 minutes compared to an average road half marathon.
Course Details
Typical Race-Day Weather
Average for this date over the last 8 years.
How hard is Colchester Half Marathon?
On our difficulty model, Colchester Half Marathon plays about 2 minutes faster than an average road half marathon for a 1:30 runner. It ranks #463 hardest of 627 half marathons we analyse, and #84 of 109 in United Kingdom. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Colchester Half Marathon?
Estimated finish times on this course versus the same effort on an average road half marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Colchester Half Marathon | Difference |
|---|---|---|
| 1:30:00 | 1:28:11 | −01:49 |
| 1:45:00 | 1:43:14 | −01:46 |
| 2:00:00 | 1:58:16 | −01:44 |
| 2:15:00 | 2:13:19 | −01:41 |
| 2:30:00 | 2:28:22 | −01:38 |
| 2:45:00 | 2:43:25 | −01:35 |
| 3:00:00 | 2:58:29 | −01:31 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Colchester Half Marathon 2027 Course Analysis
Colchester Half Marathon is a half marathon held in Colchester, United Kingdom. The next edition is expected on Sunday 16 May 2027, following the pattern of previous editions (the 3rd Sunday of May). The organisers have not confirmed it yet. The course is run on road surface with 93m of total climbing, with its high point near 52m above sea level. For registration and full race details, visit the official Colchester Half Marathon website.
Climbing
At 93m of total climbing, it is flatter than 58% of the 627 half marathons we rate.
Race-day weather
Over the last 8 years this May date has averaged a high of 16°C and a low of 7°C. That is cooler than 75% of the half marathons we track.
On 16 May over the last 8 years, the high ranged from 14°C (2026) to 21°C (2022). It rained on 5 of those 8 days.
| 16 May | High | Low | Rain | Wind |
|---|---|---|---|---|
| 2026 | 14°C | 4°C | 8 h | 18 km/h |
| 2025 | 17°C | 6°C | dry | 23 km/h |
| 2024 | 17°C | 10°C | 5 h | 11 km/h |
| 2023 | 15°C | 5°C | 3 h | 19 km/h |
| 2022 | 21°C | 12°C | 6 h | 27 km/h |
| 2021 | 14°C | 7°C | 14 h | 18 km/h |
| 2020 | 15°C | 5°C | dry | 17 km/h |
| 2019 | 15°C | 7°C | dry | 24 km/h |
Daily weather for the race location (Open-Meteo archive). Wind is the day's peak.
Looking for an easier marathon or a tougher challenge? You can also compare Colchester Half Marathon against other half marathons to find the right race for your goals.
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If Colchester Half Marathon fits your goal, these courses play out about the same on our difficulty model.
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