Vientiane weather records
Record high and low temperatures for Vientiane, by month, by season, and all-time, with the dates they occurred, across 1980–2026 of daily climate history. Its hottest day on record reached 43°C on 2024-04-27; its coldest fell to 6°C on 1999-12-25.
Records by month
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have ever been in each calendar month, so each column shows its record high and its record low. Tap a month for its full averages and typical range.
| Month | Daytime high | Overnight low |
|---|---|---|
| January | 37°C2005-01-30
14°C2016-01-25
|
24°C2017-01-09
8°C2014-01-23
|
| February | 38°C2005-02-18
16°C1996-02-20
|
24°C2009-02-22
10°C2016-02-08
|
| March | 41°C2023-03-25
16°C2011-03-17
|
26°C1991-03-27
11°C1986-03-03
|
| April | 43°C2024-04-27
22°C2005-04-05
|
29°C2023-04-18
17°C2015-04-14
|
| May | 43°C2023-05-06
24°C2000-05-20
|
30°C2023-05-06
21°C1980-05-26
|
| June | 40°C2023-06-01
25°C2021-06-13
|
29°C2019-06-22
23°C1997-06-16
|
| July | 39°C2015-07-04
24°C1981-07-06
|
29°C2015-07-02
22°C1984-07-11
|
| August | 37°C2021-08-07
25°C1990-08-30
|
28°C2021-08-09
23°C1996-08-24
|
| September | 37°C2018-09-16
24°C2004-09-10
|
27°C2016-09-04
21°C1986-09-25
|
| October | 36°C2019-10-24
22°C1999-10-20
|
27°C2023-10-04
15°C1994-10-24
|
| November | 36°C2017-11-18
20°C2001-11-14
|
26°C2023-11-10
10°C1983-11-28
|
| December | 35°C2023-12-11
15°C1991-12-29
|
24°C2002-12-07
6°C1999-12-25
|
Records by season
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have reached in each meteorological season (Northern Hemisphere, each a three-month span).
| Season | Daytime high | Overnight low |
|---|---|---|
| Winter (Dec–Feb) | 38°C2005-02-18
14°C2016-01-25
|
24°C2002-12-07
6°C1999-12-25
|
| Spring (Mar–May) | 43°C2024-04-27
16°C2011-03-17
|
30°C2023-05-06
11°C1986-03-03
|
| Summer (Jun–Aug) | 40°C2023-06-01
24°C1981-07-06
|
29°C2015-07-02
22°C1984-07-11
|
| Autumn (Sep–Nov) | 37°C2018-09-16
20°C2001-11-14
|
27°C2016-09-04
10°C1983-11-28
|
All-time records
The most extreme value Vientiane has recorded for each metric across its entire history.
High
Low
Feels-like
Humidity
Wind
Gust
Precip
For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.