2021 - BIRR Hilo Bay 5k and 10k
Hilo, Hawaii, United States
Sep 12, 2021
Running
2021 distances
Running
BIRR Hilo Bay 5K
Sep 12, 2021
5K
7:30 AM
$35.00
Closed
Birr Hilo Bay 10K
Sep 12, 2021
10K
7:30 AM
$40.00
Closed
Birr Hilo Bay 5K Kids
Sep 12, 2021
5K
7:30 AM
$25.00
Closed
Birr Hilo Bay 10K Kids
Sep 12, 2021
10K
7:30 AM
$30.00
Closed
Race date Weather
Conditions on September 12, 2021 — historical Open-Meteo data.
Temp (°C)
Minimum temperature (race-day average)
21.3°
/
Maximum temperature (race-day average)
25.6°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-day average)
21.3°
/
Maximum feels like — heat index / wind chill (race-day average)
25.6°
Wind (km/h)
Average wind speed (race-day average)
12.2
Precip (mm)
Average precipitation (race-day average)
2.5mm
Humidity
Average relative humidity (race-day average)
81.0%
About Hilo
BIRR Hilo Bay 5k and 10k takes place in Hilo, Hawaii, United States. The local timezone is Pacific/Honolulu.
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🏃 Plan Your Next Race in Hilo
Find upcoming events by distance:
- Hilo 5K Races Best Hilo routes for beginners and speed work.
- 10K Run Events in Hilo The most popular local distance in Hawaii.
- Hilo Running Calendar 2026 See all upcoming race dates.
Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.