Mekong River Climate and Average Weather
Climate of Mekong River: average temperatures, rainfall and seasons month by month.
Climate in Mekong River month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 81° | 62° | 0,4 in | ★★★★☆ |
| February | 87° | 68° | 0,4 in | ★★★★★ |
| March | 91° | 72° | 0,7 in | ★★★★☆ |
| April | 96° | 77° | 2,4 in | ★★★★☆ |
| May | 91° | 77° | 9,7 in | ★★☆☆☆ |
| June | 89° | 77° | 13,7 in | ★★☆☆☆ |
| July | 87° | 76° | 17,7 in | ★★★☆☆ |
| August | 87° | 76° | 10,9 in | ★★☆☆☆ |
| September | 87° | 75° | 19,8 in | ★★☆☆☆ |
| October | 88° | 74° | 7,8 in | ★★★☆☆ |
| November | 85° | 70° | 1,4 in | ★★★★☆ |
| December | 83° | 66° | 0,2 in | ★★★★★ |
Climate type: Tropical. Source: Open-Meteo archive (ERA5).
Recent extremes in Mekong River
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Mekong River compares with nearby places
Annual averages, and the difference against Mekong River.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Chiang Mai | 246 mi | 78°F | 33°F cooler | 87 in |
| Suvarnabhumi Airport | 321 mi | 83°F | +35°F warmer | 68 in |
| Thailand | 324 mi | 83°F | +36°F warmer | 63 in |
| Bangkok | 324 mi | 83°F | +36°F warmer | 63 in |
| Grand Palace | 325 mi | 83°F | +36°F warmer | 63 in |
Best time to visit Mekong River
Go in January, February, March, November and December. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: May, June and September - expect the least comfortable mix of heat, cold or rain.
What this means for Mekong River
Today is about average for August. The forecast high of 89°F is in line with the 87°F typical for this month.
A 61% chance means rain is expected over most of the area. Plan indoor alternatives.
Wet roads are likely; braking distances roughly double in heavy rain.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 47°F.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- A packable rain shell - 7 of the next 7 days carry a real chance of rain
- Insect repellent and quick-dry fabrics for humidity
- If your dates are flexible, avoid May, June and September - historically the least comfortable months here.
Summary
Mekong River is a river in Laos. Mekong River is a river known as a transboundary Southeast Asian river.
Right now it is 84°F (29°C) in Mekong River with overcast. It feels like 92°F. Today runs from 78°F to 89°F. Chance of precipitation is 61%. Sightseeing conditions score 7.5/10 - good conditions.
The best time to visit Mekong River is January, February, March, November and December. The climate is tropical. May, June and September tend to be the least comfortable months. April is the warmest month with average highs near 96°F, while January is the coldest with lows near 62°F.
In plain terms. Today is about average for August. The forecast high of 89°F is in line with the 87°F typical for this month. The best window to be outside is roughly 7 AM to 10 AM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Mekong River today at 8.5/10. Wet roads are likely; braking distances roughly double in heavy rain.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Mekong River
Weather map for Mekong River
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Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Mekong River
Every topic we hold for this place, and the same topic for the places around it.
Climate for related places
Frequently asked questions
Where is Mekong River?
Mekong River is a river in Laos. Its coordinates are 17.9757, 102.6331. It lies in Asia.
What is the weather like in Mekong River right now?
It is currently 84°F (29°C) with overcast. Humidity is 73% and wind is 8 mph.
When is the best time to visit Mekong River?
January, February, March, November and December offer the most comfortable conditions in Mekong River, which has a tropical climate. May, June and September are usually the hardest months for outdoor plans.
What time zone is Mekong River in?
Mekong River observes Asia/Vientiane (UTC+07:00). The local time is 4:29 AM.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (rivers) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 24, 2026 at 4:29 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
