Honolulu Marathon weather.

Typically 25°C on race morning; rain in 3 of the last 10 years. Race morning (07:00 to 11:00 local time) in Honolulu on race day in each of the last 10 years; the 2026 race is on 13 Dec 2026.

Typical
25°C (77°F)
race-morning average
Coolest
22°C (72°F)
lowest reading, 07:00–11:00
Warmest
28°C (82°F)
highest reading, 07:00–11:00
Wet years
3 of 10
rain, drizzle or worse
Humidity
74%
typical
Wind
21 km/h
typical, at 10 m

Race morning, 07:00–11:00

Year by year

Race dayAverageLow–highHumidityWindRainConditions
14 Dec 202523°C (74°F)22°C (71°F)–24°C (76°F)94%4 km/h5.9 mmDrizzle
15 Dec 202425°C (77°F)23°C (74°F)–27°C (80°F)69%21 km/h0.2 mmLight drizzle
10 Dec 202325°C (78°F)24°C (75°F)–27°C (81°F)76%23 km/h0.1 mmPartly cloudy
11 Dec 202225°C (77°F)23°C (74°F)–27°C (80°F)67%26 km/h0.0 mmOvercast
12 Dec 202124°C (75°F)23°C (73°F)–25°C (78°F)77%26 km/h0.1 mmPartly cloudy
13 Dec 202026°C (78°F)23°C (73°F)–28°C (82°F)72%6 km/h0.2 mmMainly clear
15 Dec 201925°C (77°F)24°C (74°F)–26°C (79°F)77%20 km/h0.3 mmLight drizzle
16 Dec 201824°C (74°F)22°C (71°F)–25°C (77°F)61%23 km/h0.0 mmClear
10 Dec 201723°C (74°F)22°C (72°F)–25°C (77°F)73%20 km/h0.0 mmOvercast
11 Dec 201624°C (75°F)23°C (73°F)–25°C (77°F)78%9 km/h0.0 mmPartly cloudy

Each row is the race's date that year where we know it, else the same weekday nearest its usual date. Temperatures and humidity are averaged over 07:00 to 11:00 local time, rain is the total over those hours, and conditions are the commonest over the morning. The marathon starts at 05:00.

Kit and pacing

What it means

  • Warm: adjust your goal pace

    Around 25°C on race morning costs most runners time. Plan to run a few seconds per kilometer slower than in cool weather, take on fluid and salt at every station, and wear light colors and sun cream.

  • Be ready for rain

    It rained on 3 of the last 10 race mornings. A bin bag or cheap poncho keeps you dry in the start pen; anti-chafe balm and socks that don't hold water help over the distance, and a cap keeps rain out of your eyes.

  • Expect wind

    Wind was 21 km/h on a typical morning here. Run in a group on exposed stretches, and aim for even effort rather than even splits: time lost into a headwind isn't all won back with it behind you.

General guidance from past years' numbers. Check the forecast in race week.

The course 2026 dates and entry

Weather data by Open-Meteo.com, from its historical weather archive (CC BY 4.0).

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