Weather: Loch Ness Marathon

Typical climate in September (an estimate, not measured race-day data). Use it to plan your race strategy, clothing, and hydration.

Racing conditions: Ideal

Typical climate for the race month — an estimate, not a forecast or a race-day record

13°C

Temperature

Range: 9°C – 16°C

78%

Humidity

High — increase hydration

39%

Rain Chance

Possible — check forecast

September

Typical race month

Usually on a Sunday

Conditions

Late September in Inverness averages a high of about 16–17°C and a low of about 9°C, with rain on roughly 12 days of the month, so waterproofs are sensible.

What to Wear

Singlet or short sleeve

Ideal racing temperatures

Hydration Strategy

Before the Race

Normal hydration. Drink to thirst in the 24 hours before. Avoid over-hydrating.

During the Race

Drink at aid stations every 3-4km. Alternate water and sports drink.

After the Race

Rehydrate within 30 minutes of finishing. A drink with electrolytes and some protein helps recovery.

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