CANICULAR
Beat the heat — cooling gear, heat-safety guides, and the calculators to stay comfortable through the dog days.
From checking the dog days and gauging the ‘feels like’ heat index to reading the humidity, tracking the sun and UV, and converting any temperature, Canicular pairs free hands-on heat and weather calculators with practical heat-safety guides and a richly illustrated museum. Stay cool, stay safe, beat the heat.
Heat & Weather Tools & Calculators
Free tools for beating the heat — dog days of summer calculator, heat index calculator, humidity comfort calculator, sunrise & sunset calculator, temperature converter, and UV index calculator.
Dog Days of Summer Calculator
Check whether any date falls in the dog days — July 3 to August 11, the 40 hottest days of the Northern-Hemisphere year — and see how far through the heatwave stretch you are
Heat Index Calculator
Get the 'feels like' heat index from air temperature and humidity using the National Weather Service equation — the apparent temperature in °F and °C, plus its heat-risk category
Humidity Comfort Calculator
Turn temperature and relative humidity into a dew point and a plain-language comfort level, from dry to oppressive, so you know exactly how muggy and sticky the air feels
Sunrise & Sunset Calculator
Estimate day length, sunrise, and sunset in solar time from your latitude and the day of the year — see how the summer sun stretches daylight at your latitude
Temperature Converter
Convert any temperature between Celsius, Fahrenheit, and Kelvin instantly — enter one value and see all three scales at once, perfect for reading any weather forecast
UV Index Calculator
Enter today's UV index for the risk category, an estimated time to sunburn for fair skin, and the sunscreen SPF to reach for — a fast sun-safety check for bright days
Heat & the Elements Museum
Wander an immersive museum of the sun, the heat, and the ways we keep cool — the blazing star at the centre of it all and the seasons it drives, the science of temperature, humidity, and heatwaves, the long human story of ice, shade, and air conditioning, and the deserts and scorching places of the world, each in its own gallery, so you can get to know the forces behind every sweltering day: how heat works, why it matters, and how we've learned to live with it and beat it.
Tour the museum →From the Journal
Fresh guides on heatwaves, extreme heat, and staying cool, plus practical tips on cooling gear, hydration, sun safety, and thermal comfort to help you get through the dog days in good shape.
Neck Fan for Beginners: Getting Started
The Ultimate Guide to Mastering the Art of Neck Fan Usage The neck fan has become an essential tool for individuals seeking comfort during hot…
Personal Cooler: Essential Tools and Resources
The Ultimate Personal Cooler Companion: Everything You Need to Know In an era where temperature control is paramount, personal coolers have emerged as indispensable tools…
Quick Personal Cooler Solutions Under 30 Minutes
Cooling Efficiency Unlocked: Smart Strategies for Canicular Comfort The relentless sun and rising global temperatures demand innovative approaches to stay cool during peak summer months….
Personal Cooler Best Practices 2025
The Ultimate Personal Cooler Guide for Modern Life In an era where temperature control is as essential as air conditioning, personal coolers have emerged as…
Personal Cooler for Small Spaces
The Ultimate Personal Cooler Solution for Modern Living In an era where comfort is paramount, personal coolers have emerged as indispensable tools for both urban…
Common Personal Cooler Mistakes to Avoid
Common Personal Cooler Mistakes to Avoid In today’s sweltering summers, personal coolers have become essential companions for outdoor enthusiasts, beachgoers, and anyone seeking respite from…
Keep Learning
Practical know-how on beating the heat, plain-language explainers on the heat index, dew point, UV, and how the sun and seasons work, and seasoned tips on cooling gear and heat safety alike — everything you need to dig deeper and stay cool.
Visit the Learn hub →