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Phong Nha Climate by Month

Temperatures see a moderate degree of fluctuation, transitioning from very warm conditions to warm. It also has a notably wet climate with much precipitation. Let's now guide you through the climate details for a complete overview.

Average day and night temperature

The climate in Phong Nha experiences moderate temperature changes, with mild shifts between seasons. Average daytime temperatures range from a very warm 33°C in June, the warmest time of the year, to a comfortable 22°C during cooler months like January. At night, temperatures typically average around 16°C during these months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Phong Nha is known for its substantial rainfall, with annual precipitation reaching 2116 mm. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, October receives heavy rainfall, averaging 459 mm of precipitation, recorded across 11 rainy days. In contrast, the drier season, February brings less rainfall, with 70 mm over 5 rainy days.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Seasonal changes in sunshine hours are quite dramatic in Phong Nha. While July receives considerable daily sunshine with up to 8.4 hours, February marks the darkest time of the year, where sunshine is scarce with only 2.5 hours of sunlight per day.

Monthly hours of sunshine

Data from: Đồng Hới, Vietnam (36 KM, 22 Miles).

Daily hours of sunshine

Data from: Đồng Hới, Vietnam (36 KM, 22 Miles).

The best time of year to visit Phong Nha in Vietnam

During the months of January, February, November and December you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is the rainy season in Phong Nha?
    Rainy season in Phong Nha occurs in the months of August, September, October and November.
  • Which is the warmest month in Phong Nha?
    June has an average maximum temperature of 33°C and is the warmest month of the year.
  • Which is the coldest month in Phong Nha?
    The coldest month is January with an average maximum temperature of 22°C.
  • Which is the wettest month in Phong Nha?
    October tops the wettest month list with 459 mm of rainfall.
  • Which is the driest month in Phong Nha?
    February is the driest month with 70 mm of precipitation.
  • Which is the sunniest month in Phong Nha?
    July is the sunniest month with an average of 251 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Phong Nha

    Wed   Dec 11
    23°C | 19°C
    NE 14 km/h
    12 mm
    overcast and rain

    overcast and rain

    Thu   Dec 12
    20°C | 16°C
    NW 14 km/h
    19 mm
    overcast and heavy rain

    overcast and heavy rain

    Fri   Dec 13
    19°C | 15°C
    NW 18 km/h
    12 mm
    overcast and heavy rain

    overcast and heavy rain