Vientiane, Vientiane Prefecture, Laos weather records
Record high and low temperatures for Vientiane, Vientiane Prefecture, Laos, by month, by season, and all-time, with the dates they occurred, across 1981–2026 of daily climate history. Its hottest day on record reached 45°C on 2024-05-01; its coldest fell to 3°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 | 38°C2005-01-30
14°C2016-01-24
|
24°C1988-01-31
6°C2016-01-25
|
| February | 40°C2005-02-18
14°C1996-02-20
|
27°C2013-02-28
7°C2000-02-01
|
| March | 43°C1988-03-16
16°C2011-03-17
|
29°C1988-03-21
8°C1986-03-03
|
| April | 45°C2024-04-29
23°C2018-04-07
|
32°C2024-04-30
13°C2018-04-08
|
| May | 45°C2024-05-01
25°C2000-05-20
|
32°C2024-05-01
19°C2022-05-04
|
| June | 41°C2023-06-01
26°C2026-06-20
|
28°C2023-06-02
19°C1988-06-07
|
| July | 41°C2015-07-03
25°C1986-07-23
|
29°C2015-07-03
21°C1986-07-25
|
| August | 35°C2007-08-03
26°C2018-08-30
|
26°C2023-08-20
21°C2000-08-11
|
| September | 35°C2015-09-20
24°C1997-09-27
|
26°C2020-09-03
18°C1997-09-28
|
| October | 36°C2012-10-29
21°C1981-10-10
|
26°C2024-10-01
12°C1994-10-22
|
| November | 37°C2009-11-12
17°C1981-11-09
|
24°C2012-11-09
7°C1983-11-29
|
| December | 35°C2012-12-17
13°C1991-12-29
|
23°C2012-12-01
3°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) | 40°C2005-02-18
13°C1991-12-29
|
27°C2013-02-28
3°C1999-12-25
|
| Spring (Mar–May) | 45°C2024-05-01
16°C2011-03-17
|
32°C2024-05-01
8°C1986-03-03
|
| Summer (Jun–Aug) | 41°C2015-07-03
25°C1986-07-23
|
29°C2015-07-03
19°C1988-06-07
|
| Autumn (Sep–Nov) | 37°C2009-11-12
17°C1981-11-09
|
26°C2020-09-03
7°C1983-11-29
|
All-time records
The most extreme value Vientiane has recorded for each metric across its entire history.
High
Low
Feels-like
Humidity
Wind
Precip
For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.