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Weather in Vientiane for May 2025

Your guide to Vientiane weather in May - trends and predictions

    Temperatures

  • In general, the average temperature in Vientiane at the beginning of May is 40 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 33.9 °C by the end of May.

  • Rain 🌧️

  • Vientiane experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 190.7 mm.

  • More

  • Is May a good time to visit Vientiane? check out the best time to travel to Vientiane page.

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Average dry days
3
Dry days
Average rainy days
28
Rainy days
Average snowy days
0
Snow days
Average temperatures
35°/25°
Temperatures
Average wind speed
12 km/h
Avg max wind
Average humidity
62 %
Avg humidity

Vientiane in May average weather

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Temperatures trend during May in Vientiane

See the weather trend as well as the moving average line
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May weather day by day

Click on a date for more information
Date Weather Temperatures Rain UV More
1 May Heavy rain at times
Heavy rain at times
40° /26° 0.7 mm 9
2 May Overcast
Overcast
40° /28° 0.3 mm 9
3 May Heavy rain at times
Heavy rain at times
37° /25° 4.5 mm 8
4 May Overcast
Overcast
39° /25° 1.7 mm 8
5 May Patchy rain possible
Patchy rain possible
43° /28° 0.3 mm 9
6 May Partly cloudy
Partly cloudy
41° /27° 1.2 mm 9
7 May Overcast
Overcast
40° /27° 2.7 mm 9
8 May Patchy rain possible
Patchy rain possible
37° /25° 2.4 mm 8
9 May Moderate or heavy rain shower
Moderate or heavy rain shower
31° /24° 14.7 mm 7
10 May Moderate or heavy rain shower
Moderate or heavy rain shower
32° /24° 7.5 mm 7
11 May Moderate or heavy rain shower
Moderate or heavy rain shower
34° /24° 11.8 mm 8
12 May Moderate or heavy rain shower
Moderate or heavy rain shower
34° /25° 11.1 mm 8
13 May Heavy rain at times
Heavy rain at times
32° /24° 8.3 mm 7
14 May Moderate or heavy rain shower
Moderate or heavy rain shower
33° /24° 5.8 mm 7
15 May Moderate or heavy rain shower
Moderate or heavy rain shower
37° /25° 4.3 mm 8
16 May Partly cloudy
Partly cloudy
36° /24° 1.4 mm 9
17 May Partly cloudy
Partly cloudy
36° /25° 3.7 mm 8
18 May Partly cloudy
Partly cloudy
36° /25° 2.3 mm 8
19 May Partly cloudy
Partly cloudy
38° /25° 6.1 mm 9
20 May Partly cloudy
Partly cloudy
38° /25° 26.8 mm 9
21 May Partly cloudy
Partly cloudy
36° /26° 5 mm 8
22 May Patchy rain possible
Patchy rain possible
34° /25° 8.8 mm 8
23 May Heavy rain at times
Heavy rain at times
31° /24° 16.9 mm 7
24 May Moderate or heavy rain shower
Moderate or heavy rain shower
31° /23° 9.1 mm 7
25 May Moderate rain at times
Moderate rain at times
33° /24° 7.2 mm 8
26 May Moderate or heavy rain shower
Moderate or heavy rain shower
32° /23° 7.8 mm 7
27 May Patchy rain possible
Patchy rain possible
34° /24° 1.8 mm 8
28 May Moderate or heavy rain shower
Moderate or heavy rain shower
32° /25° 2.3 mm 7
29 May Moderate or heavy rain shower
Moderate or heavy rain shower
33° /25° 7.6 mm 7
30 May Patchy rain possible
Patchy rain possible
38° /26° 1.5 mm 9
31 May Patchy rain possible
Patchy rain possible
35° /26° 5.3 mm 8
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Important Notice
Our weather forecast for Vientiane in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Vientiane forecast closer to your planned date for the most up-to-date weather information.

Vientiane in May - FAQ

What are the expected maximum and minimum temperatures in Vientiane during May?
With daytime temperatures soaring above 35° and not dropping much below 25° at night, May in Vientiane is quite hot. Staying hydrated and avoiding peak sun hours is advisable.
How much rainfall should be expected in Vientiane during May?
Significant rainfall exceeding 190.7 mm is expected in Vientiane during May, occurring over more than 28 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Vientiane during May?
The average wind speed in Vientiane during May is 12 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Vientiane in May?

As you prepare for your trip to Vientiane in May, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Vientiane, during May, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Lightweight Clothing: T-shirts, blouses, shorts, skirts
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
    • Sandals/Flip-flops: Comfortable for warm climates
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Umbrellas/Raincoats: For rainy days
  • Personal Items
    • Sunscreen: High SPF for sunny destinations
    • Lip Balm with SPF: To protect against chapped lips

May rainfall patterns in Vientiane

Explore the daily rainfall trends and prepare for Vientianes May weather 💧

UV exposure in Vientiane during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️

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Location coordinates Where is Vientiane?

Get accurate weather forecasts for Vientiane, located at latitude 17.967 and longitude 102.6. Stay updated with localized weather information tailored for Vientiane.

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