Climate and monthly weather forecast
Bồng Sơn, Vietnam

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The climate of Bồng Sơn

The geographical setting of Bồng Sơn is such that the prevailing climate is tagged as Humid subtropical according to the Köppen climate classification — given the label Cwa. The distinguishing characteristic of this climate group is a year-round high relative humidity, indicated by an annual average value that exceeds 75%, combined with significant variability in temperature and precipitation.

On a year-to-year basis, temperatures range from a minimum of 19.9°C (67.8°F) to a high of 31.9°C (89.4°F). The lower range usually occurs in the initial year whilst the peak temperatures are common during the middle months. Regarding rainfall, the monthly volume spans from as low as 39mm (1.54") up to a high value of 365mm (14.37"); the starting month of the year records minimum precipitation which increases progressively until it peaks in the penultimate month.

Furthermore, cloud coverage in Bồng Sơn varies throughout the year, with the lowest percentage in the middle part whilst the highest density typically occurs towards the end and beginning of the year. These periods coincide significantly with the less and more rainfall periods, respectively.

The most distinguishing factor in Bồng Sơn’s climate would be the exceptionally high humidity combined with the warm temperatures. This results in particular months where both the humidity exceeds 80% and temperatures are above 30°C (86°F), creating a sweltering heat scenario not regularly found in other regions.

The best time to visit Bồng Sơn

Bearing in mind the weather conditions of Bồng Sơn, the recommended window for tourist visits would be between April and June. During this period, the average temperatures fall between 29.6°C (85.3°F) to 31.9°C (89.4°F) creating a warm pleasant atmosphere, conducive for outdoor activities. Relative humidity also drops to its lowest yearly values between 75% and 77%.

In addition to these favorable conditions, the amount of sunshine recorded in the duration is at its yearly highs, close to 11.5 hours per day. This translates to longer days and shorter nights, allowing ample time for sightseeing and exploration.

The worst time to visit Bồng Sơn

Considering the weather patterns, the months from October to December are not particularly ideal for visitation. In these months, the skies are usually crowded by clouds, reducing visibility and making the atmosphere gloomy. Average cloud coverage rises from 46% to 70% between October and December.

Additionally, these months coincides with increased precipitation levels, on average 223mm (8.78") to 365mm (14.37") of rain, which can disrupt outdoor activities. High relative humidity during this period, over 80%, may also provide an uncomfortable experience due to the high moisture level in the air.

Spring weather in Bồng Sơn

The spring period in Bồng Sơn occurs between March and May. During this duration, temperatures gradually ascend from 27°C (80.6°F) to a peak of 31.9°C (89.4°F), marking a shift from cooler to warmer conditions. Precipitation is relatively moderate, witnessing an increase from 42mm (1.65") in March to a slightly higher value of 49mm (1.93") in May.

Furthermore, average daylight increases from 12.1 hours to 12.8 hours, accompanied by an increase in sunshine hours from 7.7 hours to 11.5 hours per day. The shifting weather offers a pleasant ambience for outdoor activities.

Summer weather in Bồng Sơn

The summer months — June, July, August — in Bồng Sơn are characterized by high temperatures with modest variations between 31.5°C (88.7°F) to 31.9°C (89.4°F). Average rainfall during this period increases gradually from 54mm (2.13") in June to 81mm (3.19") in August.

Despite the mixed effects of the heat, the increased rainfall and lingering high humidity around the 75% to 77% mark, the average daylight and sunshine hours still provide enough time for outdoor activities averaging at about 13 hours and 11.5 hours respectively in June.

Autumn weather in Bồng Sơn

The autumn in Bồng Sơn — from September to November — is defined by a slow decrease in temperature from 30.3°C (86.5°F) in September to 26.1°C (79°F) by November. Correspondingly, precipitation levels experience a significant increase from typical 171mm (6.73") in September to an average of 365mm (14.37") in November.

In line with the pattern of the previous season, cloud coverage begins to rise from 36% in September to a substantial 61% by November. Despite these changes, the daylight still averages around 12 hours with reduced sunshine hours from 8.6 hours to 5.4 hours all through the season.

Winter weather in Bồng Sơn

Winter, marked by the last month of the year and the first two of the succeeding year, is characterized by a further fall in temperatures. The typical range during this period is from 23.9°C (75°F) to 19.9°C (67.8°F). Rainfall in this season sees a significant drop from the high of 365mm (14.37") in November to 231mm (9.09") in December and further to 138mm (5.43") by January.

Cloud coverage is notably dense during these months hitting a peak of 70% in December before gradually falling to 65% in February. Despite the prevalent conditions, the region still receives an appreciable amount of sunlight with daylight ranging from 11.3 hours to 11.4 hours and relatively constant average sunshine duration of about 4 hours per day.

Weather in January

January in Bồng Sơn, Vietnam, brings cooler temperatures ranging from 19.9°C (67.8°F) to 23.3°C (73.9°F). This month sees the highest relative humidity of 86% coupled with considerable cloud cover of 65%, bringing an atmosphere of chill and dampness. Weather in January »

Weather in February

Bồng Sơn witnesses a shift in weather with the arrival of February. Warm temperatures, lower humidity, and receding rainfall manifest the transition towards the dry season. Sunshine increases to 5.5 hours daily, with daylight extending to 11.7 hours. Weather in February »

Weather in March

March marks a decisive move away from the coolness of the early year. Higher daylight hours extending to 12.1 hours, the wind's gentle shift from northeast to southeast, and reduced cloud cover to 34% symbolize the change. This month, Bồng Sơn experiences increased warmth with temperatures soaring up to 27°C (80.6°F). Weather in March »

Weather in April

April in Bồng Sơn, Vietnam, signifies the arrival of the hot dry season with temperatures ranging from 23.6°C (74.5°F) to 29.6°C (85.3°F). The days grow longer with daylight stretching to 12.5 hours, and sunshine further intensifies, touching 9.3 hours. Weather in April »

Weather in May

As summer sets in firmly, May in Bồng Sơn presents the warmest temperatures of the year, reaching a blazing 31.9°C (89.4°F) during the day. Despite this, the abundant sunshine of 11.5 hours and the longest daylight hours of 12.8 hours make this month a perfect time for sun worshipers. Weather in May »

Weather in June

Weather in June continues the summer streak with peak temperatures equal to May and slightly higher rainfall. The month is subject to the highest atmospheric pressure of the year. Daylight continues to dominate at 13 hours, providing ample time for outdoor activities despite the heat. Weather in June »

Weather in July

Come July, and weather in Bồng Sơn begins to shift once more. Despite daytime temperatures remaining high at 31.5°C (88.7°F), the nights get slightly cooler with a lower limit of 25.6°C (78.1°F). Rainfall escalates to 72mm (2.83"), indicative of stronger monsoon influence. Weather in July »

Weather in August

August amplifies July's weather trends, cementing the grip of the wet season over Bồng Sơn. Increasing rainfall, constant high temperatures, and an average wind speed of 8.4km/h (5.2mph) signal the full force of the wet season. Weather in August »

Weather in September

As September rolls in, weather in Bồng Sơn undergoes a substantial shift. While temperatures still linger around 30.3°C (86.5°F), the main highlight of this month is the spike in rainfall. An impressive 171mm (6.73") of precipitation spread across 24.3 days signals the peak of the wet season. Weather in September »

Weather in October

October sustains the monsoon's clout in Bồng Sơn but with a twist. The temperatures dip to a range of 23.6°C (74.5°F) to 28.1°C (82.6°F), providing relief from the extended summer heat. Despite this cool down, the rainfall continues its ascending journey, reaching an all-time high of 223mm (8.78") spread across 25.1 days. Weather in October »

Weather in November

November marks the transition from the wet to the cold season. The shifting North winds bring cooler air into the city, and the temperature maxima dip to 26.1°C (79°F). The main highlight of November is the maximum rainfall of 365mm (14.37") received throughout the year, marking the wettest month for Bồng Sơn. Weather in November »

Weather in December

In December, Bồng Sơn welcomes the cold season with both temperature and rainfall decreasing substantially. The temperatures drop to a range of 20.9°C (69.6°F) to 23.9°C (75°F) and rainfall decreases to 231mm (9.09"). Despite the dip in quantities, rainfall still spreads across 25.2 days, making this month quite wet. Weather in December »
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Frequently asked questions

What are the coldest months in Bồng Sơn?

Bồng Sơn's January weather, marked by an average high temperature of 23.3°C (73.9°F) and an average low temperature of 19.9°C (67.8°F), is the coldest in the year.

What are the most humid months in Bồng Sơn?

January, November and December, with an average relative humidity of 86%, are most humid months in Bồng Sơn, Vietnam.

How many days does it rain in Bồng Sơn?

In Bồng Sơn, Vietnam, during the entire year, the rain falls for 245.1 days and collects up to 1507mm (59.33") of precipitation.

When is the lowest UV index in Bồng Sơn?

The months with the lowest UV index are January, November and December, with an average maximum UV index of 5.

When is the highest UV index in Bồng Sơn?

The months with the highest UV index in Bồng Sơn, Vietnam, are April through September, with an average maximum UV index of 7.

What are the warmest months in Bồng Sơn?

The yearly peak temperatures in Bồng Sơn occur in May and June, averaging a high-temperature of 31.9°C (89.4°F).

What is the driest month in Bồng Sơn?

The month with the least rainfall in Bồng Sơn, Vietnam, is May, when the rain falls for 16.2 days and typically collects 39mm (1.54") of precipitation.

What is the month with the most sunshine in Bồng Sơn?

May and June, with an average of 11.5h of sunshine, are months with the most sunshine in Bồng Sơn.

What is the least humid month in Bồng Sơn?

The least humid month is June, with an average relative humidity of 75%.

When are the longest days in Bồng Sơn?

With an average of 13h and 0min of daylight, June has the longest days of the year in Bồng Sơn.

What is the rainiest month in Bồng Sơn?

The month with the most rainfall is November, when the rain falls for 23.9 days and typically aggregates up to 365mm (14.37") of precipitation.

What is the month with the shortest days in Bồng Sơn?

December has the shortest days of the year, with an average of 11h and 18min of daylight.

Is there Daylight Saving Time (DST) in Bồng Sơn?

Bồng Sơn does not utilize Daylight Saving Time (DST). +07 timezone is used throughout the entire year.

What is the month with the least sunshine in Bồng Sơn?

The month with the least sunshine is December, with an average of 3.6h of sunshine.

Average temperature
Bồng Sơn, Vietnam

Average temperature - Bồng Sơn, Vietnam

The warmest months (with the highest average high temperature) are May and June (31.9°C).
The month with the lowest average high temperature is January (23.3°C).

The month with the highest average low temperature is June (26°C).
The coldest month (with the lowest average low temperature) is January (19.9°C).

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Average pressure
Bồng Sơn, Vietnam

Average pressure - Bồng Sơn, Vietnam

The month with the highest atmospheric pressure is January (1016mbar).
The month with the lowest atmospheric pressure is July (1005.8mbar).

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Average wind speed
Bồng Sơn, Vietnam

Average wind speed - Bồng Sơn, Vietnam

The windiest month (with the highest average wind speed) is December (13.4km/h).
The calmest month (with the lowest average wind speed) is August (8.4km/h).

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Average humidity
Bồng Sơn, Vietnam

Average humidity - Bồng Sơn, Vietnam

The months with the highest relative humidity are January, November and December (86%).
The month with the lowest relative humidity is June (75%).

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Average rainfall
Bồng Sơn, Vietnam

Average rainfall - Bồng Sơn, Vietnam

The wettest month (with the highest rainfall) is November (365mm).
The driest month (with the least rainfall) is May (39mm).

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Average rainfall days
Bồng Sơn, Vietnam

Average rainfall days - Bồng Sơn, Vietnam

The month with the highest number of rainy days is December (25.2 days).
The month with the least rainy days is February (13.6 days).

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Average daylight / Average sunshine
Bồng Sơn, Vietnam

Average daylight / Average sunshine - Bồng Sơn, Vietnam

The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).

The months with the most sunshine are May and June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).

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Average sunshine days
Bồng Sơn, Vietnam

Average sunshine days - Bồng Sơn, Vietnam

The month with the most sunshine days is March (13.4 days).
The months with the least sunshine days are October and November (3.7 days).

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Average UV index
Bồng Sơn, Vietnam

Average UV index - Bồng Sơn, Vietnam

The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, November and December (UV index 5).

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Average visibility
Bồng Sơn, Vietnam

Average visibility - Bồng Sơn, Vietnam

The months with the highest visibility are February, March, April, May, June, July, August and September (10km).
The months with the lowest visibility are January, October, November and December (9km).

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Bồng Sơn, Vietnam

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