The best times to visit Cao Bang for ideal weather are

October 15th to April 8th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Cao Bang Travel Info

Weather in Cao Bang


Average temperatures in Cao Bang vary greatly. Considering humidity, temperatures feel hot for about half of the year and otherwise nice with a fair chance of precipitation about half of the year. The area is somewhat temperate — in the 43rd percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Cao Bang, the hottest months are July, June, and then August. See average monthly temperatures below. The warmest time of year is generally mid June where highs are regularly around 92.4°F (33.6°C) with temperatures rarely dropping below 76.3°F (24.6°C) at night.

Cao Bang Temperatures (Fahrenheit)


Cao Bang Temperatures (Celsius)


“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Cao Bang Perceived Temperature (F)


Cao Bang Perceived Temperature (C)



Average Cao Bang Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 63.3 55.4 49.4
Feb 70.7 62.3 55.8
Mar 74.5 66.8 60.6
Apr 82.4 73.9 66.7
May 88.6 79.3 71.8
Jun 90.8 81.7 75.1
Jul 91 81.8 75.5
Aug 91.1 80.9 74.5
Sep 88.7 78.8 72.4
Oct 83.9 73.8 66.9
Nov 76.7 66.5 59.8
Dec 68 59.1 52.7

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 17.4 13 9.7
Feb 21.5 16.8 13.2
Mar 23.6 19.3 15.9
Apr 28 23.3 19.3
May 31.4 26.3 22.1
Jun 32.7 27.6 23.9
Jul 32.8 27.7 24.2
Aug 32.8 27.2 23.6
Sep 31.5 26 22.4
Oct 28.8 23.2 19.4
Nov 24.8 19.2 15.4
Dec 20 15.1 11.5



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Cao Bang are January, February, and then November. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early February. For example, on the week of February 5th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in mid July with an average of 4 days of significant precipitation the week of July 16th.

When can you find snow in Cao Bang? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Cao Bang.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Cao Bang (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 5% 0 1.3
Feb 6% 0 0.7
Mar 11% 0 1.6
Apr 18% 0 3
May 30% 0 8.5
Jun 38% 0 10.5
Jul 44% 0 9.4
Aug 35% 0 9
Sep 26% 0 6.9
Oct 13% 0 2.4
Nov 9% 0 2.2
Dec 11% 0 1.7

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 5 0 3.3
Feb 6 0 1.8
Mar 11 0 4.1
Apr 18 0 7.6
May 30 0 21.6
Jun 38 0 26.7
Jul 44 0 23.9
Aug 35 0 22.9
Sep 26 0 17.5
Oct 13 0 6.1
Nov 9 0 5.6
Dec 11 0 4.3


Humidity and Wind

Cao Bang has some very humid months, and high humidity throughout the year. The least humid month is February (73.4% relative humidity), and the most humid month is August (80.8%).

Wind in Cao Bang is usually extremely calm. The windiest month is April, followed by February and March. April’s average wind speed of around 2.9 knots (3.3 MPH or 5.4 KPH) is considered “light air.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in mid April where average top sustained speeds reach 7 knots, which is considered a gentle breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Cao Bang.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 2.1 Barely noticeable 4.8 Light breeze
Feb 2.8 Barely noticeable 6.2 Light breeze
Mar 2.8 Barely noticeable 6.2 Light breeze
Apr 2.9 Barely noticeable 6.4 Light breeze
May 2.7 Barely noticeable 6.2 Light breeze
Jun 2.4 Barely noticeable 5.6 Light breeze
Jul 2.4 Barely noticeable 5.6 Light breeze
Aug 2.2 Barely noticeable 5.5 Light breeze
Sep 2 Barely noticeable 5 Light breeze
Oct 1.8 Barely noticeable 4.4 Light breeze
Nov 1.8 Barely noticeable 4.7 Light breeze
Dec 2 Barely noticeable 4.8 Light breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 75.7%
Feb 73.4%
Mar 76%
Apr 74.8%
May 76%
Jun 79.5%
Jul 80.6%
Aug 80.8%
Sep 79.4%
Oct 77.1%
Nov 76.3%
Dec 74.4%


Is it Safe to Travel to Cao Bang?

Our best data indicates this area is somewhat safe. As of Oct 07, 2019 there are travel warnings for Vietnam; exercise a high degree of caution. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Aug 22, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Cao Bang, Vietnam is October, followed by January and June. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Cao Bang in February. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 57.2 in February means 57.2% of the tourists vs. October.



Overall Cao Bang Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel warm. Highs range from 90.1°F (32.3°C) and 69.8°F (21°C) with warmer temperatures in the later months. Rain is somewhat common with 3 to 9 days of significant precipitation per month. Spring is the slowest for tourism, which makes it a good time for those looking for deals.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the most precipitation with 11 to 14 days of precipitation per month. June – August is the second busiest season for tourism in Cao Bang, so lodging and other accommodations may cost slightly more.

Fall (September through November)

Fall daily highs range from 89.6°F (32°C) and 73.1°F (22.8°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 3 to 8 days per month. Tourism is the busiest during these months due to the weather, so hotels may be higher priced.

Winter (December through February)

Weather is somewhat cool this time of year in Cao Bang to be enjoyable for warm weather travelers. The average high during this season is between 73.9°F (23.3°C) and 61.6°F (16.4°C). On average, it rains or snows a smalll amount: 2 to 3 times per month. These times of year are fairly slow with tourists.


Best Times to TravelVietnam › Cao Bang, Vietnam