Hanoi Weather in July

July finds Hanoi in the middle of summer, with sweltering heat prevailing. Frequent thunderstorms and occasional typhoons hit the city. These weather conditions collectively make July a low season for tourism in Hanoi. If you plan to visit at this time, be sure to closely monitor the weather forecast and adjust your itinerary as needed.

“Sauna Mode” Temperature

In July, Hanoi is like a natural sauna. The daytime highs often hover between 33 and 38 degrees Celsius (91 - 100 degrees Fahrenheit), and the nighttime lows are between 25 and 29℃ (77 - 84℉). That is to say, within just a few minutes of being out at noon, your entire body will be soaked in sweat; even the mornings and evenings offer little relief from the heat - nights without air conditioning are simply unbearable for a good sleep. To make matters worse, warm and humid air currents carried by the southwest monsoon keep the air humidity above 75%, leaving you feeling as if you’re wrapped tightly in a warm, damp towel.

Intermittent but Frequent Torrents

Average precipitation: 288 mm from 16 rainy days

July brings Hanoi frequent, local, and short-lived downpours. Often, just a street apart, one side may bask in bright sunshine while the other may be drenched in heavy rain - with a distinct weather division even visible on the ground. This kind of rainfall is as unpredictable as a child’s mood: it can pour down in an instant, leaving no time to put on a raincoat, then let up and stop abruptly, catching you off guard.

Occasional Typhoons

On average, Hanoi is hit by typhoon once a year in July. For instance, around July 22, 2025, Typhoon Wipha passed through the city, causing significant damage. During this period, Hanoi recorded a cumulative rainfall of 100 - 250 mm, which triggered widespread urban waterlogging. This not only brought local traffic to a standstill and delayed some flights, but also caused large-scale power outages lasting 24 to 48 hours across many urban areas, with roadside trees toppling and some building roofs sustaining damage. Such typhoon-induced extreme weather causes significant disruptions to travel.

Intense Ultraviolet Rays

In July in Hanoi, the sun rises at 5:17 - 5:28 and sets at 18:37 - 18:43, with around 13.5 hours of daylight each day. Even with frequent rainfall, but being mostly brief, the city still sees an average of 6 hours of effective daily sunlight. However, extra caution is needed because UV radiation this month - even on cloudy, rainy days, remains high, typically hitting an extreme level above 11. Without proper sun protection, skin exposed directly to sun for just half an hour will grow hot and red, and may even peel in severe cases.

Is July Really Not a Good Time to Visit Hanoi?

In fact, July is not the ideal time to visit Hanoi, but if your trip is already planned, there’s no need to worry too much.

First of all, although it rains frequently here, the duration is short and the coverage is limited. You can visit indoor attractions nearby or take a break in a coffee shop. After the rain stops, you can continue your tour, and it won’t affect your itinerary seriously.

Secondly, if you are concerned about the hot weather, you can adjust your itinerary according to the temperature. For instance, you can watch the water puppet show during the hottest part of the day, take a stroll around Hoan Kiem Lake in the cool morning, and go boating on West Lake at night. In this way, you won’t miss your favorite spots and your experience will be more comfortable.

Finally, the major advantage of visiting Hanoi in July is that it is during the off-season for tourism: there are few visitors, so you don’t have to contend with crowds, and the prices for all kinds of consumption are also lower. You can enjoy this vacation peacefully and economically.

Packing List for Visiting Hanoi in July

Clothes & Shoes: It is recommended to bring quick-drying, lightweight and breathable clothes, such as T-shirts, tank tops, light trousers, shorts, dresses and skirts. Considering that rainwater may soak your shoes, it is advisable to carry anti-slip sandals, slippers, wading shoes, etc. to keep your feet comfortable.

Note: If you plan to visit Ho Chi Minh Mausoleum and Tran Quoc Pagoda, it is recommended that you wear long pants and a long-sleeved shirt even if it is hot, as these places prohibit wearing short sleeves, tank tops or shorts.

Others: Mosquito repellent, umbrellas, raincoats, sunscreen, parasols, sun hats, sunglasses, etc.

Tips

1.Pay close attention to the weather forecast before your trip and try to avoid traveling to Hanoi on typhoon days. If you happen to encounter a typhoon, there’s no need to worry overly - such weather usually passes in one or two days. You can take a break at your hotel first and go out to explore once the weather clears up.

2.The hot and muggy weather can easily cause dehydration, and drinking water alone won’t effectively replenish electrolytes. It’s recommended to carry electrolyte water or light salt water with you, or you can buy fresh coconut water from street vendors as a substitute.

3.During heavy downpours, ordinary umbrellas and raincoats offer only limited protection. It is recommended to stay indoors as much as possible. After the rain, when going out, avoid waterlogged sections of the road and be cautious of hidden potholes and loose manhole covers on the ground.

Hanoi Weather by Month