Yes, it rains significantly in Tokyo during the hottest months, specifically during the "Tsuyu" (plum rain) season in June and early July, and again during the typhoon season from August to September. In 2026, visitors to Tokyo in July and August should expect a "High-Fidelity" combination of intense heat—often exceeding 35°C (95°F)—and extreme humidity levels around 75-80%. This humidity makes the air feel thick and "sticky," and it frequently fuels sudden, heavy afternoon downpours or "guerrilla rainstorms" that can drench the city in minutes. While August is one of the hottest months, it is also a peak time for typhoons, which bring prolonged heavy rain and strong winds. For travelers, this means that while the sun is scorching, you must always carry a "High-Fidelity" sturdy umbrella or poncho. The rain doesn't necessarily cool the city down; instead, it often increases the evaporation, making the following hours feel even more muggy and "High-Fidelity" sauna-like.