In the southern part of Vietnam, the dry season lasts from December to late April/May while the rainy season occurs from May to the end of November. The rainy season usually just means brief heavy downpours in the afternoon, although sometimes the Mekong Delta will flood.
May through November is still a good time to visit. Temperatures rarely dip below 20°C (68°F), but they can sometimes get as high as 40°C (104°F) in the hottest months (March to the end of May).
Along the central coast, the rainfall pattern differs quite a bit. In the northern part of the region (like Hué and Da Nang), the rain lasts from September to February. February to May is the best time to visit this area. Temperatures soar from June to August, often in the high 30s°C (80s°F).
In Northern Vietnam, the weather is most pleasant from October to December.
The weather in Vietnam varies so much per region, it’s hard to pick the best time to go. But generally, it’s recommended to visit sometime between September-December and March-April if you’re hoping to get an overall experience in the country.
How to Stay Safe in Vietnam
Vietnam is an incredibly safe place to backpack and travel — even if you’re traveling solo or even as a solo female traveler. Violent crime is rare, though petty theft can occur. Always keep your valuables secure when out and about just to be safe.
There are some common scams in Vietnam, such as the motorbike scam where vendors try to charge you for pre-existing damage to your bike rental. When renting anything, take photos and videos beforehand just in case.
Be sure to always count your change. The money is similar looking here so oftentimes people will “mistakenly” give you the wrong change hoping you won’t notice that the 200,000 VND bill you just got is actually only 20,000. Always count your change here!
Most scams here are really just people trying to try to nickel and dime you and try to get you to spend extra money since they know, as a tourist, you have more than they do. If you’re worried about getting ripped off you can read about common travel scams to avoid here.
Solo female travelers should generally feel safe here, however, the standard precautions apply (never leave your drink unattended at the bar, never walk home alone intoxicated, etc.).
If you experience an emergency, dial 113 for assistance.
The most important piece of advice I can offer is to purchase good travel insurance. Travel insurance will protect you against illness, injury, theft, and cancellations. It’s comprehensive protection in case anything goes wrong. I never go on a trip without it as I’ve had to use it many times in the past.