Phnom Penh International Half Marathon
Phnom Penh, Cambodia · Sunday 6 December 2026
Held in the bustling capital of Cambodia, the Phnom Penh International Half Marathon combines historic landmarks, vibrant streets, and Mekong River views. Runners pass iconic sites such as the Royal Palace, Independence Monument, and the Silver Pagoda, offering a rich cultural backdrop to this unique race. The flat course and warm temperatures make hydration key, but the lively crowd support, well-organized water stations, and festive post-race celebrations make it an enjoyable challenge. This e
Difficulty Calculator
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:m
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Adjusted Time
1:54:13
Time difference: +9.2 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain51m
Elevation High26m
Elevation Low4m
Weather Forecast
High34°C
Low26°C
Chance of Rain85%
Phnom Penh International Half Marathon 2026 Course Analysis
Phnom Penh International Half Marathon is a half marathon held in Phnom Penh, Cambodia, scheduled for Sunday 6 December 2026. The course is run on road surface with 51m of total elevation gain, reaching a maximum altitude of 26m above sea level. For registration and full race details, visit the official Phnom Penh International Half Marathon website.
Elevation Profile
This is a very flat course with only 51m of total elevation gain across the full distance. The course ranges from 4m to 26m above sea level — a 22m elevation range that makes it one of the flatter races available. Runners targeting a personal best will appreciate the minimal climbing.
Expected Race Day Weather
Based on historical weather data for December, the expected race day conditions are as follows. Hot conditions are expected, with temperatures between 26°C and 34°C. Heat is one of the biggest performance factors in marathon running — research shows that for every degree above 15°C, marathon times slow by approximately 1-2%. Extra hydration and a conservative start are strongly recommended. There is a high chance of rain (85%). Runners should prepare for wet conditions, including appropriate footwear and clothing choices.
Surface Type: Road
Phnom Penh International 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 Phnom Penh International Half Marathon?
Our difficulty rating for Phnom Penh International 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 Phnom Penh International Half Marathon against other half marathons to find the right race for your goals.