Triathlon race weather forecasts

Cairns combines tropical warmth, humidity and coastal wind along a scenic but exposed course.

Busselton is usually a warm early-summer race where sea breeze and heat shape execution.

Klagenfurt is usually a warm alpine-summer race where storms, heat and lake conditions are the main checks.

Florianopolis blends ocean conditions, island wind and mild-to-warm autumn racing weather.

Mont-Tremblant is usually warm but variable, with lake conditions and mountain weather both in play.

Copenhagen usually offers mild racing weather, with wind and showers the variables to watch.

Tallinn usually offers northern summer racing with Baltic wind, cool water and shower risk in play.

Nice combines Mediterranean sea conditions with a mountainous bike and a sun-exposed promenade run.

Roth is usually a summer race where wind, warm afternoons and storm risk matter more than cold exposure.

Frankfurt can range from ideal racing weather to a hot, humid summer day that punishes late pacing.

Hamburg usually has manageable summer temperatures, with rain and wind deciding how easy the course feels.

Cervia usually brings warm late-summer conditions with coastal wind and humidity in play.

Langkawi is a tropical race where humidity, heat and rain risk define the day.

Cozumel is a warm island race where ocean current, wind and humidity dominate planning.

Almere is a flat, exposed race where wind direction can dominate otherwise moderate conditions.

Taupo often delivers temperate conditions, but lake wind and fast-changing weather can still define the day.

Gdynia is a Baltic coastal race where wind, cool water and summer showers are the main variables.

The full-distance Cascais race extends the same Atlantic weather questions across a longer day.

Nelson Mandela Bay is a coastal race where wind can shape the entire day even when temperatures look manageable.

Barcelona is usually an autumn coastal race with mild temperatures but meaningful wind and sea-state checks.

Lanzarote is an exposed island race where wind and sun exposure are central to execution.

Kalmar is often mild but exposed, with Baltic wind and showers shaping the race-day read.

Tenby is a rugged coastal race where wind, rain and cooler air can all influence race-day choices.

Tempe usually gives dry desert racing, with cool starts and warmer afternoon conditions.

Chattanooga is usually warm and humid enough that heat management remains central.

Florida is usually mild by temperature, but Gulf conditions and wind can shape the race.

Lake Placid is a summer mountain race where storms, humidity and wind can change across the day.

Texas often asks athletes to manage humidity, heat and wind earlier in the season than many races.

Madison can bring ideal early-fall racing or a day shaped by wind, rain and temperature swings.

Kona rewards athletes who can manage exposed heat, crosswinds and fast-changing coastal conditions.

Geelong usually brings bay conditions, mild warmth and wind direction as the main decision points.

Zell am See pairs alpine lake conditions with mountain weather that can change quickly.

The 2026 Ironman 70.3 World Championship brings middle-distance racing back to Nice, with Mediterranean water, a hilly Alpes-Maritimes bike and a fast Promenade des Anglais run.

Desaru Coast is a tropical race where heat, humidity, rain and sea breeze all matter.

Wanaka combines alpine lake conditions, wind exposure and a weather pattern that can change quickly.

Cebu is usually hot and humid, with tropical rain risk and coastal wind shaping race execution.

Davao usually brings tropical heat, humidity and changing rain risk across the day.

Cascais usually brings Atlantic coastal wind, mild temperatures and a race read shaped by sea state.

San Juan usually means warm, humid racing with coastal wind and sun exposure in play.

Durban race weather often comes down to coastal humidity, wind direction and heat management.

Mossel Bay combines coastal wind decisions with a race window that can shift from cool morning to warm run.

Peguera is an autumn Mediterranean race where sea state, sun and hills all matter.

Marbella is a spring coastal race where sea state, climbing temperatures and bike-course exposure matter.

Swansea is a coastal Welsh race where wind, rain and cooler air can shape the day.

Weymouth is an autumn coastal race where sea conditions and wind can outweigh the mild air forecast.

Augusta is usually warm and humid, with heat index and river conditions central to the read.

Oregon usually offers dry summer racing, with morning coolness and afternoon sun as the key shift.

Santa Cruz blends cool coastal air, ocean conditions and potentially windy bike sections.

Mooloolaba is a humid coastal race where surf, warmth and early-season storms are worth watching.

Noosa is usually warm and humid, with the best race-day decisions centered on sun and coastal wind.

London is usually mild, but rain, wind and urban heat can all affect race-day comfort.

Chicago is usually warm and urban, with Lake Michigan wind and heat as the main checks.

Malibu is usually mild and coastal, with surf, marine layer and wind as the main weather factors.

New York is typically a hot, humid urban race where timing and heat management matter.

Alpe d'Huez combines alpine lake conditions, major elevation change and mountain weather volatility.

Cannes is a spring Mediterranean race with sea state, wind and hilly-bike weather all in play.

Alcatraz is a cold-water, current-sensitive race where local marine guidance matters more than generic weather.