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Weather & Climate in Phônthong, Laos
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Phônthong has a warm climate with an average annual temperature of 80°F (27°C). Winters average 73°F in January while summers reach 81°F in July / relatively mild seasonal variation. The area gets 341 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 78.8 inches (wetter than the 38-inch national average). The city sits at an elevation of 358 feet.
Temperature
73°F Jan (23°C)
81°F Jul (27°C)
| Annual Average | 80.3°F |
| 49% above US avg | |
| January Average | 73°F (23°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 341 days/yr |
Geography
| Elevation | 358 ft (109 m) |
| Area | 62.9 sq mi (163.0 km²) |
| Population Density | 0/sq mi |
| Coordinates | 15.1012°N, 105.6542°W |
| Timezone | Asia/Vientiane |
Precipitation & Snow
Air Quality
Hurricane History
7 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2022 | Noru | Category 1 | 63 mph | 247 km |
| 2020 | Vamco | Category 2 | 75 mph | 299 km |
| 2013 | Nari | Category 1 | 58 mph | 284 km |
| 2006 | Xangsane | Category 1 | 75 mph | 145 km |
| 1997 | Fritz | Category 1 | 52 mph | 281 km |
| 1989 | Angela | Category 2 | 81 mph | 271 km |
| 1985 | Cecil | Category 3 | 92 mph | 225 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 73°F (23°C) | 0.0 in | Coldest, Driest |
| February | 79°F (26°C) | 0.3 in | |
| March | 83°F (29°C) | 1.0 in | |
| April | 85°F (30°C) | 3.1 in | Warmest |
| May | 84°F (29°C) | 9.2 in | |
| June | 82°F (28°C) | 11.2 in | |
| July | 81°F (27°C) | 18.7 in | Wettest |
| August | 81°F (27°C) | 17.4 in | |
| September | 81°F (27°C) | 14.5 in | |
| October | 80°F (26°C) | 4.0 in | |
| November | 77°F (25°C) | 0.8 in | |
| December | 75°F (24°C) | 0.1 in |
Phônthong has a seasonal temperature swing of 13°F / from 73°F in January to 85°F in April. Total annual precipitation is 80.3 inches, with July being the wettest month (18.7") and January the driest (0.0").