Laos
Weather Analysis for Vientiane, Laos: August 19 - August 21, 2025
As we step into the midweek, Vientiane is preparing for a mix of weather that may highlight the variability typical for this time of year. Here’s your comprehensive weather forecast detailing temperatures, precipitation, and other essential conditions for the next three days.
On Tuesday, expect a high of 31°C (87°F) and a minimum temperature of 23°C (73°F). The day will start with partly cloudy skies, becoming increasingly humid with an average humidity of around 79%. As we move into the afternoon, there is a 100% chance of light rain showers, particularly between noon and 6 PM, with total predicted precipitation of about 2.4 mm.
The wind will be gentle, blowing predominantly from the southeast at about 4-8 km/h (2-5 mph), which should keep the weather rather comfortable. The visibility will remain good at around 10 km, ensuring that outdoor activities can still be enjoyable despite the potential rain.
Astronomical Highlights: The sun will rise at 5:53 AM and set at 6:33 PM, with the moon phase transitioning into a waning crescent.
On Wednesday, temperatures will slightly dip with a maximum of 30°C (86°F) and a low of 23°C (73°F), yet the high humidity remains a pattern to watch, averaging around 78%. Expect rain throughout the day—again boasting a 100% chance, particularly in the morning hours when 2.5 mm of rainfall may accumulate.
The winds will remain calm at 3-6 km/h (1-4 mph) from the east-southeast, allowing for a moist environment. Anyone with plans outdoors should be prepared for patchy rain, especially around lunchtime, when the likelihood of precipitation peaks. Visibility stays at a decent 10 km, but early morning mist could lead to reduced visibility at times.
Astronomical Update: The sun will rise at 5:53 AM, and with clouds filling the sky, it will set at 6:32 PM.
As we approach the end of the forecasting period, temperatures will rise slightly back to 31°C (88°F) during the day and remain cool at 23°C (74°F) overnight. The humidity will persist at around 82%, and the forecast shows a multiple chances of light rain throughout the day with possible thundery showers by the afternoon, especially between 3 PM and 6 PM.
Rainfall expectations linger at 0.8 mm, prompting individuals to stay vigilant for wet weather conditions. Winds will be gentle at 4 km/h (3 mph) from the northwest. Overall visibility will likely remain clear initially but could be compromised as the expected rain approaches.
Astronomical Insight: Sunrise will remain consistent at 5:53 AM, with the sun setting at 6:32 PM, enhancing the light hours amidst variable cloudiness.
In summary, Vientiane is in for a warm, humid few days with significant chances of rainfall across the board. While this may disrupt some outdoor plans, mornings and evenings could still be pleasant for activities. For continuous updates and detailed hour-by-hour forecasts, you can check out the Next 5 days weather and Hour by hour weather for Vientiane, Laos.
Stay prepared, stay dry, and make the most of the beautiful moments amidst the changing weather.
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