Kauai Marathon

Poipu, HI, USA • September 6, 2026

Race Day Weather

partly-cloudy-day
76°
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 163 days
partly-cloudy-night7
partly-cloudy-night7
partly-cloudy-night7
partly-cloudy-day7
partly-cloudy-day6
partly-cloudy-day5
partly-cloudy-day5
partly-cloudy-day5
partly-cloudy-day5
partly-cloudy-day5
partly-cloudy-day5

Pace Calculator

Distance: 26.2mi
0:00:00
HH:MM:SS
Pace
—
Weather Adj.
—
Common Goals:
Area Map

Course Map

Course Map Unavailable

We don't have course map data for Kauai Marathon yet. If you have a GPX file (or other format) for this race, we'd love to add it!

Request / Submit Map

FAQ

Ask a Question about the Kauai Marathon

Racecast Concierge (free during beta)

Ask a question about the Kauai Marathon and we'll do the hard part and find the answer for you within 48 hours.

By using Racecast Concierge, you agree to receive email alerts pertaining to the Kauai Marathon and general racecast.io updates.

When is the 2026 Kauai Marathon?

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

Historical Weather

Based on 15 years of data
Avg Temp
83°F
L:75° H:83°
RunScore
5
Conditions
Rain Freq
40%
6 of 15 yrs
Wind11mph
Dew71°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults

2025 Kauai Marathon

Partly cloudy throughout the day with late afternoon rain.

2025
partly-cloudy-night
75°/84°-
7

2024 Kauai Marathon

Clearing in the afternoon.

2024
partly-cloudy-night
77°/86°-
5

2023 Kauai Marathon

Partly cloudy throughout the day with rain clearing later.

2023
rain
75°/83°Light
5

2022 Kauai Marathon

Partly cloudy throughout the day with rain.

2022
partly-cloudy-night
77°/83°Light
6

2019 Kauai Marathon

Partly cloudy throughout the day with rain.

2019
partly-cloudy-night
80°/85°Light
5

2018 Kauai Marathon

Partly cloudy throughout the day with a chance of rain throughout the day.

2018
cloudy
74°/81°Light
6

2017 Kauai Marathon

Partly cloudy throughout the day.

2017
partly-cloudy-night
72°/84°-
7

2016 Kauai Marathon

Partly cloudy throughout the day with late afternoon rain.

2016
clear-night
74°/86°-
6

2015 Kauai Marathon

Clear conditions throughout the day.

2015
clear-night
74°/84°-
6

2014 Kauai Marathon

Partly cloudy throughout the day with early morning rain.

2014
partly-cloudy-night
75°/83°-
7

2013 Kauai Marathon

Partly cloudy throughout the day.

2013
partly-cloudy-night
76°/86°-
5

2012 Kauai Marathon

Partly cloudy throughout the day with afternoon rain.

2012
cloudy
75°/84°Light
5

2011 Kauai Marathon

Becoming cloudy in the afternoon.

2011
partly-cloudy-night
74°/82°-
7

2010 Kauai Marathon

Partly cloudy throughout the day with early morning rain.

2010
partly-cloudy-night
75°/81°-
6

2009 Kauai Marathon

Partly cloudy throughout the day with rain clearing later.

2009
partly-cloudy-night
75°/79°Light
6
You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR