Singapore Marathon
Sunday, December 6, 2026
Elevation Gain
15m
Elevation Range
12m
Avg Temperature
80°F / 27°C
Course Profile
flat
Course Map & Elevation
This route is generated and may not follow the exact official course.
Course Overview
A pancake-flat loop course with only 15m total elevation gain, run entirely at sea level through Singapore's urban centre and coastal parks. Despite the flat terrain, this is one of the most demanding major marathons in the world due to extreme heat and humidity. The one thing that makes Singapore unique is the 4:30am pre-dawn start in 24-32C heat with 80-90% humidity, requiring a fundamentally different approach to pacing, fueling, and training than any temperate-weather marathon.
Key Segments
Marina Bay to Orchard Road
Terrain: Flat urban streets through Marina Bay, up Orchard Road shopping district, through Newton and down to Chinatown. Pre-dawn darkness for first 90 minutes.
Challenge: The cooler pre-dawn air (24-26C) tempts aggressive pacing that will cost dearly when the sun rises. Darker stretches require reflective gear and a headlamp.
Tactic: Start 5-10% slower than your cool-weather marathon pace from the gun. The first 9km are the coolest you will experience — do not waste them by banking time. Wear reflective gear.
East Coast Park
Terrain: Flat coastal park path along the sea, some sections with gusty sea breezes. Darker stretches through tree-lined paths.
Challenge: The longest stretch of the course with minimal crowd support. Sea breezes help cooling but can slow you. Humidity is relentless.
Tactic: Drink at every single aid station. Dump water on your head and neck. Consider carrying a handheld bottle for the gaps between stations. Electrolyte intake should be much higher than normal.
Gardens by the Bay and Marina Bay Sands
Terrain: Flat return through Gardens by the Bay, Supertree Grove, Marina Bay Sands waterfront, and Marina Barrage
Challenge: The sun is fully up by now. Temperatures reach 30-32C. This is where undertrained-for-heat runners hit the wall hard.
Tactic: If you have heat-adapted properly and paced conservatively, this is where you pass dozens of fading runners. Maintain steady effort. Ice at aid stations if available.
Marina Bay Finish
Terrain: Flat through The Float at Marina Bay back to The Padang finish, exposed to full morning sun
Challenge: Peak heat and humidity. The final 4km feel like 10km in these conditions.
Tactic: Run on feel and effort. Maintain form. The finish at The Padang has crowd support — use the final energy boost. Do not sprint early in the heat.
Race-Specific Training
- •Heat acclimatization is non-negotiable: spend at least 10-14 days training in hot, humid conditions before race week, or use sauna protocols (20-30 min post-workout, 3-4x per week for 2 weeks) to simulate the heat stress
- •Practice pre-dawn long runs starting at 4:00-5:00 AM to calibrate your body clock, fueling, and pacing by feel in darkness
- •Train sodium loading and mid-race salt supplementation — electrolyte needs in 80-90% humidity are 2-3x higher than a temperate marathon
Conditions & Environment
Altitude
Entirely at sea level (2-15m). No altitude concerns.
Weather
December race. 24-32C (75-90F) with 80-90% relative humidity. One of the hottest and most humid major marathons in the world. There is no cool start — 4:30am temps are still 24-26C.
Sun & Wind
First 90 minutes in darkness. Sun rises by km 15-18 and becomes oppressive. Coastal sections through East Coast Park can have sea breezes that help cooling but may slow you. Year-round equatorial sun means high UV.
What to Wear
Lightest possible singlet and shorts. Light colors. Reflective gear and headlamp for pre-dawn km. No layers. Consider a light cap for sun protection after sunrise.
Pacing Strategy
| Segment | Pace | Note |
|---|---|---|
| km 0-9 | 5-10% slower than cool-weather goal pace | Pre-dawn but still 24-26C with extreme humidity. The cooler darkness tempts aggressive pacing — resist. Set realistic heat-adjusted goals from the gun. |
| km 15-30 | Steady effort (accept pace slowdown) | East Coast Park. Drink everything. Dump water on yourself. Accept that pace will drift as temperature rises. Run by effort. |
| km 30-38 | Steady effort (maintain form) | Peak heat. If you have been conservative, you will pass dozens of fading runners through Gardens by the Bay. |
| km 38-42.195 | Best available effort | Survival running for most. The finish at The Padang rewards those who respected the heat from km 1. |
Race Day Tip
Expect your pace to be 5-10% slower than an equivalent cool-weather effort — set realistic goals before the gun. Most first-timers in Singapore run 10-20 minutes slower than their temperate PB and still feel like they ran harder than ever. Freeze your water bottles the night before and bring cold towels to the start.
Race details subject to change. Verify with the official race website.
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