Conditions on this page are recalculated from the latest forecast every time it is opened, for the current date in the location's own time zone.
Above 35°C (95°F) is dangerous for prolonged outdoor activity. With high humidity, even 30°C can be dangerous. The key metric is "feels-like" temperature — if it exceeds 40°C, limit outdoor time to essential activities only. If the heat index (feels-like temperature) exceeds 40°C, health authorities recommend limiting outdoor exposure. Above 45°C feels-like, outdoor activity should be avoided entirely. Humidity prevents sweat evaporation — your body's primary cooling system. At 35°C with 70% humidity, your body cannot cool itself effectively. This is more dangerous than 40°C with 20% humidity. Heavy sweating, cold/clammy skin, fast weak pulse, nausea, dizziness, headache, and muscle cramps. If you experience these, move to shade, drink water, and cool your body. If symptoms worsen, seek medical help immediately. Know the exact temperature and humidity thresholds that make outdoor activity dangerous. Feels-like temperature limits, heat risk zones, and safety rules. s warm, not dangerous — right? Wrong. At 80% humidity, 32°C feels like 42°C. Your body can. Tragedy" forecast="33°C, partly cloudy, moderate humidity" reality="Humidity was 75%. Feels-like temperature hit 42°C by 2 PM. A construction crew working outdoors: two hospitalized for heat stroke within 3 hours." score="Air temp score: 55/100. Feels-like score: 15/100" lesson="33°C air temperature with 75% humidity is not. The thermometer says 32°C. That's warm, not dangerous — right? Wrong. At 80% humidity, 32°C feels like 42°C. Your body can't cool itself. Heat stroke can follow within 30 minutes of exertion. Temperature alone doesn't tell you if it's too hot. If the day will be hot, there are still safe windows. The coolest part of the day is typically 5–7 AM (not sunrise — there's a lag). Temperatures peak around 3 PM, not noon.
Scores are capped by dealbreakers — heavy rain, dangerous wind, thick fog or hazardous UV pull a day down no matter how pleasant the rest of the numbers look. Forecast data is Open-Meteo; solar and lunar values are computed for Too Hot To Be Outside's own coordinates and time zone. Full details on the methodology page.