The best times to visit Phonsavan for ideal weather are

October 15th to April 1st

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



Other Phonsavan Travel Info

Weather in Phonsavan


Average temperatures in Phonsavan vary somewhat. Considering humidity, temperatures feel nice most of the year, excluding some hot weeks in the summer, with a fair chance of precipitation about half of the year. The area is somewhat temperate — in the 58th 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 Phonsavan, the hottest months are June, May, and then July. See average monthly temperatures below. The warmest time of year is generally mid April where highs are regularly around 85.1°F (29.5°C) with temperatures rarely dropping below 64°F (17.8°C) at night.

Phonsavan Temperatures (Fahrenheit)


Phonsavan 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.

Phonsavan Perceived Temperature (F)


Phonsavan Perceived Temperature (C)



Average Phonsavan 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 72.1 61.2 47.2
Feb 79 67.8 51.3
Mar 81.5 71.7 56.7
Apr 83.6 74.8 62.6
May 83 75.8 66.7
Jun 81.8 76 68.7
Jul 80.5 75 68.4
Aug 80.6 74.8 68
Sep 80.3 74.1 66.3
Oct 77.3 71 61.5
Nov 75 67.3 56
Dec 71 62.1 50

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 22.3 16.2 8.4
Feb 26.1 19.9 10.7
Mar 27.5 22.1 13.7
Apr 28.7 23.8 17
May 28.3 24.3 19.3
Jun 27.7 24.4 20.4
Jul 26.9 23.9 20.2
Aug 27 23.8 20
Sep 26.8 23.4 19.1
Oct 25.2 21.7 16.4
Nov 23.9 19.6 13.3
Dec 21.7 16.7 10



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Phonsavan are February, January, and then December. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early January. For example, on the week of January 1st there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early August with an average of 5 days of significant precipitation the week of July 30th.

When can you find snow in Phonsavan? 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 Phonsavan.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 3% 0 0.6
Feb 1% 0 0.1
Mar 10% 0 2.5
Apr 33% 0 5.9
May 45% 0 7.2
Jun 44% 0 7.7
Jul 58% 0 11.4
Aug 58% 0 12.1
Sep 36% 0 6.8
Oct 16% 0 2.6
Nov 9% 0 1.7
Dec 4% 0 1.2

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 3 0 1.5
Feb 1 0 0.3
Mar 10 0 6.4
Apr 33 0 15
May 45 0 18.3
Jun 44 0 19.6
Jul 58 0 29
Aug 58 0 30.7
Sep 36 0 17.3
Oct 16 0 6.6
Nov 9 0 4.3
Dec 4 0 3


Humidity and Wind

Phonsavan has some very humid months, with other moderately humid months on the other side of the year. The least humid month is February (44.2% relative humidity), and the most humid month is August (72.9%).

Wind in Phonsavan is usually calm. The windiest month is March, followed by February and January. March’s average wind speed of around 5.3 knots (6.1 MPH or 9.8 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in mid February where average top sustained speeds reach 10.7 knots, which is considered a gentle breeze.

Relative Humidity (%)

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

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 4.9 Light breeze 8.6 Gentle breeze
Feb 5.2 Light breeze 10 Gentle breeze
Mar 5.3 Light breeze 9.5 Gentle breeze
Apr 4 Light breeze 7.3 Gentle breeze
May 3.4 Barely noticeable 6 Gentle breeze
Jun 3.6 Barely noticeable 6.3 Light breeze
Jul 3.3 Barely noticeable 5.9 Gentle breeze
Aug 3.1 Barely noticeable 5.8 Light breeze
Sep 3.5 Barely noticeable 6.2 Gentle breeze
Oct 4.8 Light breeze 7.8 Gentle breeze
Nov 4.9 Light breeze 7.7 Gentle breeze
Dec 4.5 Light breeze 7.7 Gentle breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 52.3%
Feb 44.2%
Mar 47.4%
Apr 56.6%
May 65.9%
Jun 69.9%
Jul 72.8%
Aug 72.9%
Sep 69.7%
Oct 64.2%
Nov 59.9%
Dec 59.2%


Is it Safe to Travel to Phonsavan?

Our best data indicates this area is somewhat safe, but with extra warnings in a few regions. As of Dec 04, 2023 there are travel warnings and regional advisories for Laos; exercise a high degree of caution and avoid some areas. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Oct 30, 2023.


The Busiest and Least Crowded Months

The busiest month for tourism in Phonsavan, Laos is February, followed by November and July. 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 Phonsavan in March. 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 70 in March means 70% of the tourists vs. February.



Overall Phonsavan Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel warm. Highs range from 85.1°F (29.5°C) and 80.8°F (27.1°C) with warmer temperatures in the later months. Rain is somewhat common with 3 to 14 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 comfortable. These months see the most precipitation with 13 to 18 days of precipitation per month. June – August is the second busiest season for tourism in Phonsavan, so lodging and other accommodations may cost slightly more.

Fall (September through November)

Fall daily highs range from 80.6°F (27°C) and 72.7°F (22.6°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 3 to 11 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.

Winter (December through February)

Weather is somewhat cool this time of year in Phonsavan to be enjoyable for warm weather travelers. The average high during this season is between 82.3°F (27.9°C) and 68.8°F (20.4°C). On average, it rains or snows a very small amount: 0 to 1 times per month. These times of year are the busiest with tourists.


Best Times to TravelLaos › Phonsavan, Laos