Avoid the Grand Canyon during the summer months of June to August due to extreme heat, crowds, and high prices.

Avoid visiting Maldives during May to October due to the monsoon season. Rainfall is heavy and strong winds may cause rough seas.

The worst time to visit Vietnam is during the rainy season
which typically occurs from June to September. This period is characterized by heavy rainfall and the possibility of typhoons
making travel challenging. Additionally
Tet Holidays at the end of January or early February can also be a challenging time to travel (source [World Mate Travel](https//worldmatetravel.com/travel-guide/worst-time-to-visit-vietnam-what-to-consider)).

Typhoon season (November to April) is the worst time to visit the Philippines.

Avoid visiting Niagara Falls in the winter, as the weather is cold and snowy, and the falls are often frozen.

Avoid visiting New York City between late June and August, when it’s hot, humid, and crowded.

The worst time to visit Kauai is generally considered to be during the summer months
particularly in August and September
due to high humidity and muggy conditions. Additionally
this period aligns with the high tourist season
resulting in larger crowds and higher prices (source [Quora](https//www.quora.com/Whats-the-worst-time-of-year-to-schedule-a-vacation-to-Hawaii)).

The worst time to visit England is typically in August
coinciding with school holidays and resulting in busy tourist locations and limited accommodation options (source [Wanderlust & Life](https//www.wanderlustandlife.com/best-and-worst-time-to-visit-england/)).

Hurricane season (May–November) is considered the worst time to visit Punta Cana.

Hurricane season, June to November. More rain, hotter weather, and higher prices.

Avoid visiting Myrtle Beach between Memorial Day and Labor Day, when the crowds are at their peak and the prices are at their highest.

Avoid visiting Rome in July and August due to hot weather and large crowds

Avoid visiting Washington, D.C. in the summer due to hot and humid weather, heavy traffic, and large crowds.

July and August are the hottest, most humid months, with average daily temperatures of 40°C (104°F).

Hurricane season, from June to November, is the worst time to visit New Orleans.

Avoid visiting Egypt in the summer, as the temperatures can reach up to 50 °C (122 °F). The best time to visit is during the shoulder seasons of spring and fall, when the weather is mild and the crowds are smaller.

Avoid visiting Miami between May and October due to the extreme heat and humidity, as well as the frequent hurricanes.

The worst time to visit Australia is generally during the peak summer months of December to February
due to scorching temperatures
crowded tourist spots
and the wet season in northern Australia. Additionally
it’s best to avoid the wet season in northern Australia from December to March. (source [TravelRichee](https//travelrichee.com.ng/worst-time-to-visit-australia/))

Avoid the rainy season, which runs from November to January.

Avoid visiting Arizona during the summer months of June-August due to extreme heat, which can reach up to 120 degrees Fahrenheit.