Beat the Heat with Discounts: Daimaru Tokyo Launches 'Extreme Heat Day Coupon' for Days Over 35°C

Amid forecasts of extreme heat in summer 2026 due to dual high-pressure systems, Daimaru Tokyo will launch a storewide 'Extreme Heat Day Coupon' promotion for days when temperatures are forecast to reach 35°C or higher. This initiative targets members of the Daimaru-Matsuzakaya app, distributing coupons on days when the Japan Meteorological Agency predicts Tokyo's daytime high will hit 35°C or above the following day. The campaign aims to encourage customer visits and enhance in-store shopping comfort during severe heat. Additionally, the store will feature a curated selection of heat-relief items, including advanced sun umbrellas and handheld fans with cooling plates.

Extreme Heat Day Coupon Overview

Period: June 17 (Wed), 2026 – August 31 (Mon), 2026

Details: On days when the Japan Meteorological Agency's 5:00 PM forecast predicts the next day's maximum temperature in Tokyo will reach 35°C or higher, one 'Extreme Heat Day Coupon' will be sent by 10:00 AM to app members. The coupon offers a 100-yen discount on purchases of 1,000 yen or more (tax included) storewide.

※ Valid only on the day of issuance.

※ Some stores excluded.

Previous Year Performance: From July 1 (Tue), 2025 to August 31 (Sun), 2025, the coupon was issued on 29 days, with a total of 28,969 redemptions across the store (some exclusions applied).

Heat Relief Products

〈BRAUN〉Summer Shield Foldable All-Weather Umbrella – ¥16,500 each / Women's Fashion, 3F

Features fabric from the 'Toray Summer ShieldⓇ Sp (Special Protection)' series, offering the highest level of heat shielding in the lineup (approx. -12°C temperature difference at the crown). This all-weather umbrella provides excellent heat and light blocking for comfortable summer use.

Heat-shielding umbrella with approx. -12°C cooling effect

〈Knirps〉Men's All-Weather Umbrella U.220 – ¥8,250 / Men's Fashion, 7F

A lightweight, automatic open-close all-weather umbrella with heat shielding, light blocking, and UV protection. Its professional design suits business settings, making it ideal for commuting in summer heat.

Growing trend of men using sun umbrellas

〈Enherb〉Ume-Hibiscus Tea Leaves 50g (approx. 12 servings) – ¥1,800 / Living, 9F

A refreshing blend of traditional Japanese ume (pickled plum) and tangy hibiscus, offering vibrant energy to help you power through the summer.

Stay refreshed during hot weather

〈The Aroma Tree〉Slim Cooling Hook Fan – ¥2,728 / Living, 9F

A compact handheld fan with a cooling plate that feels cold on the skin. At just 3 cm thick, it's easy to carry for commuting or outings. Use with an optional aroma pad holder to enjoy cooling with fragrance.

Advanced aromatherapy handheld fan

〈Tabio〉Full Mesh Crew Socks – ¥990 / Men's Fashion, 7F

Breathable full-mesh socks made with high moisture-wicking fabric to reduce foot sweat and stickiness. Ideal for keeping feet comfortable during summer commutes and outings.

Don't overlook foot-level heat protection

※ All prices include tax.