{
  "$type": "site.standard.document",
  "description": "Ever since the return of Ironman 70.3 Boise was announced, I've been wondering what the water temperature would be like on race day. I know in the previous iterations of this race, when it was in early June, it was a very cold swim: In 2011 the water temperature was 11ºC, and in 2012 it was so cold, people wore wetsuits on the bike, which was shortened to 24 km. So far I haven't been able to find a reliable source of historical water temperatures at Lucky Peak Reservoir to look up what it might be like in late July, but today I got an email from Ironman that states (emphasis mine): The IRONMAN 70.3 Boise 2025 swim course offers athletes a refreshing and scenic 1.2-mile swim in the pristine waters of Lucky Peak Reservoir. Starting and finishing in the easily accessible Barclay Bay area, this single-loop course provides a calm and clear environment, ideal for both seasoned swimmers and first-time triathletes. The reservoir's typical water temperatures in late July range from 64°F to 70°F (18°C to 21°C), making it comfortably wetsuit-legal for most participants. That's not so bad, that's downright pleasant! Anyway, just thought of dropping that here in case anybody else needs to Google it. Update: The water temperature on race day in 2025 was 19.6ºC.",
  "path": "/2025/05/20/whats-the-water-temperature-at-lucky-peak-reservoir-in-july/",
  "publishedAt": "2025-05-20T16:00:00.000Z",
  "site": "at://did:plc:vmxpdybfbj3ogs4w6p5pjhhs/site.standard.publication/self",
  "tags": [
    "Ironman 70.3"
  ],
  "textContent": "Ever since the return of Ironman 70.3 Boise was announced, I've been wondering what the water temperature would be like on race day. I know in the previous iterations of this race, when it was in early June, it was a very cold swim: In 2011 the water temperature was 11ºC, and in 2012 it was so cold, people wore wetsuits on the bike, which was shortened to 24 km. So far I haven't been able to find a reliable source of historical water temperatures at Lucky Peak Reservoir to look up what it might be like in late July, but today I got an email from Ironman that states (emphasis mine): The IRONMAN 70.3 Boise 2025 swim course offers athletes a refreshing and scenic 1.2-mile swim in the pristine waters of Lucky Peak Reservoir. Starting and finishing in the easily accessible Barclay Bay area, this single-loop course provides a calm and clear environment, ideal for both seasoned swimmers and first-time triathletes. The reservoir's typical water temperatures in late July range from 64°F to 70°F (18°C to 21°C), making it comfortably wetsuit-legal for most participants. That's not so bad, that's downright pleasant! Anyway, just thought of dropping that here in case anybody else needs to Google it. Update: The water temperature on race day in 2025 was 19.6ºC.",
  "title": "What's the water temperature at Lucky Peak Reservoir in July?",
  "updatedAt": "2025-08-19T22:52:46.022Z"
}