Kauai Marathon

Poipu, HI, USA • September 6, 2026

Race Day Weather

77°

85° high

Breezy

Dry

Warm conditions, hydrate frequently

Runners will face temperatures starting at 76°F and climbing to 85°F, with average humidity around 71% and a dew point of 71°F. A light headwind of 12 mph may provide some relief, but hydration should be prioritized. Adjust pacing strategies to account for the warmth, especially in later miles.

Race day forecast available in 143 days

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Pre-raceRace windowPost-race

Pace Calculator

Distance: 26.2mi

Target Finish Time

0:00:00

HH:MM:SS

Pace

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Weather Adj.

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Common Goals:

Course Map

FAQ

When is the 2026 Kauai Marathon?

The 2026 Kauai Marathon will be held on Sunday September 6, 2026.

What will the weather be like for the 2026 Kauai Marathon?

The forecast calls for a high of 85°F and a low of 77°F with a 0% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 15 years of data

Avg Temp

83°F

L:75° H:83°

RunScore

Conditions

Rain Freq

40%

6 of 15 yrs

Wind11mph

Dew71°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 Kauai Marathon Partly cloudy throughout the day with late afternoon rain. 2025	75°/84°	-	69°
2024 Kauai Marathon Clearing in the afternoon. 2024	77°/86°	-	74°
2023 Kauai Marathon Partly cloudy throughout the day with rain clearing later. 2023	75°/83°	Light	70°
2022 Kauai Marathon Partly cloudy throughout the day with rain. 2022	77°/83°	Light	72°
2019 Kauai Marathon Partly cloudy throughout the day with rain. 2019	80°/85°	Light	75°
2018 Kauai Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2018	74°/81°	Light	74°
2017 Kauai Marathon Partly cloudy throughout the day. 2017	72°/84°	-	70°
2016 Kauai Marathon Partly cloudy throughout the day with late afternoon rain. 2016	74°/86°	-	73°
2015 Kauai Marathon Clear conditions throughout the day. 2015	74°/84°	-	72°
2014 Kauai Marathon Partly cloudy throughout the day with early morning rain. 2014	75°/83°	-	69°
2013 Kauai Marathon Partly cloudy throughout the day. 2013	76°/86°	-	68°
2012 Kauai Marathon Partly cloudy throughout the day with afternoon rain. 2012	75°/84°	Light	68°
2011 Kauai Marathon Becoming cloudy in the afternoon. 2011	74°/82°	-	66°
2010 Kauai Marathon Partly cloudy throughout the day with early morning rain. 2010	75°/81°	-	65°
2009 Kauai Marathon Partly cloudy throughout the day with rain clearing later. 2009	75°/79°	Light	69°

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