As temperatures rise in June, UK households are advised to shut their windows at a specific time to keep their homes cool. The key strategy involves closing windows between 8am and 9am, before the sun fully rises and temperatures begin to climb.
Why Close Windows in the Morning?
June has the longest days of the year, with the sun rising around 8am. After that, outdoor temperatures gradually increase until the afternoon. By closing windows early, you trap the cooler night air inside, reducing the need for electric fans and lowering energy bills.
When to Open Windows Again
Open windows in the evening when temperatures drop and the outside air feels cooler. This allows fresh, cool air to circulate through your home overnight.
Additional Tips for Staying Cool
- Keep curtains or blinds closed during sunny hours to block direct sunlight, which can heat up rooms even if windows are shut.
- Use a bed sheet or towel as a temporary curtain if you lack blinds or shutters.
- Check the Met Office forecast daily to adjust timings based on temperature changes.
The British Red Cross recommends: "During the hottest parts of the day, it's best to close windows to keep the warmer air out. Check the forecast to gauge when temperatures are starting to rise. Make sure to cover windows during the day to protect from direct sunlight like blinds, curtains, or external shutters."
Benefits Beyond Cooling
This method not only helps maintain a comfortable indoor temperature but also saves money on energy bills by reducing reliance on fans. With summer 2026 expected to bring scorching temperatures across Europe, these simple steps can make a significant difference.
