Climate and monthly weather forecast
Buka, Papua New Guinea

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The climate of Buka

Buka, positioned in Papua New Guinea, is swathed by an Af Köppen climate classification, typically referred to as a Tropical Rainforest climate. This classification is characterized by high temperatures and a significant amount of rainfall throughout the year. Seasonal variation is almost negligible in terms of temperature.
Average high temperatures for the year range between 28.4°C (83.1°F) and 29.3°C (84.7°F). The temperate trend remains fairly consistent across the months, recording just under a degree of fluctuation. Low temperatures oscillate between 25.1°C (77.2°F) and 26.3°C (79.3°F), indicating that nights in Buka are relatively warm as well. The humidity remains high for most of the year, fluctuating around an average of 79%, which further enhances the sultry tropical ambiance.
Rainfall patterns expressly contribute to Buka's characteristically moist environment, with monthly averages extending from 149mm (5.87") to 226mm (8.9"). Days with rainfall count varies from 24.4 to 27.9 days per month on average, hence abundant wet days should be expected. Sea temperatures are consistently warm, hovering at about 29°C (84.2°F) to 30°C (86°F) throughout the year. Sunshine hours exhibit a slight dip in the middle of the year, dipping to 6.6 hours/day in July. However, daylight hours have a minimal variation, sliding about half an hour from 11.8 hours/day to 12.4 hours/day throughout the year.

The best time to visit Buka

Evaluating the constant temperature and high humidity, the preferable time to visit Buka would center around the comparatively drier and sunnier months. These months generally fall between August and October when average rainfall decreases to between 109mm (4.29") and 131mm (5.16"), and daily sunshine increases to 8.6 hours. These conditions tend to offer a mild reprieve from the persistent rainfall, and the slightly increased sunshine hours enhance the potential for outdoor activities.

The worst time to visit Buka

The least favorable time to visit Buka would be when rainfall is at its peak, coupled with decreased sunshine hours. This period is typically from March to April, during which the average rainfall reaches up to 226mm (8.9"), and average monthly sunshine hours are at their lowest, hovering at about 8.3 to 8.9 hours/day.

Spring weather in Buka

Spring, in terms of northern hemisphere timeframes, in Buka, Papua New Guinea, does not deviate significantly from the robust tropical climate. Average high temperatures uphold their warm range of 28.5°C (83.3°F) to 29.3°C (84.7°F) from March to May. Meanwhile, low temperatures only experience a mild increase from 25.9°C (78.6°F) to 26.3°C (79.3°F). Rainfall declines marginally from 226mm (8.9") to 162mm (6.38"), while the average number of rainfall days remains high, oscillating from 27.9 days in March to 27.8 days in May.

Summer weather in Buka

Buka's tropical weather is ever-present during summer months (June through August). With high temperatures averaging from 28.9°C (84°F) to 28.4°C (83.1°F) and low temperatures wavering slightly from 25.8°C (78.4°F) to 25.3°C (77.5°F), heat levels remain high. Rain levels start to decline, moving from 151mm (5.94") in June to 149mm (5.87") in August. The number of rainfall days decreases similarly, dropping from 25.9 days to 25.3 days over the period.

Autumn weather in Buka

Autumn (September through November) in Buka reveals a gradual but consistent improvement in weather conditions. High temperatures fluctuate minimally from 28.7°C (83.7°F) to 29.2°C (84.6°F), while low temperatures oscillate between 25.1°C (77.2°F) and 25.6°C (78.1°F). Rainfall progressively increases again, going from 109mm (4.29") in September to 183mm (7.2") in November. However, the number of rainy days remains relatively stable, ranging from 24.4 days to 25.1 days across the months.

Winter weather in Buka

Winter months in Buka (December through February) are characterized by undeterred tropical atmospheric conditions. High temperatures consistently hover around 29°C (84.2°F), and low temperatures maintain a narrow range of 25.8°C (78.4°F) to 26°C (78.8°F). Rainfall averages skew upwards, reaching from 172mm (6.77") to 217mm (8.54") over the period. Consequently, the number of rainfall days also increases, ranging from 26.8 days in December to 27.1 days in February. Winter, therefore, sustains Buka's reputation as a tropical rainforest climate region.

Weather in January

Notable for the start of the year in Buka, Papua New Guinea, is the consistent humidity with a relative value of 79%. The climate in January is typically humid and wet, making it a sanctuary for those seeking a tropical escape. Weather in January »

Weather in February

February weather in Buka does not differ dramatically from January, maintaining the same pattern of tropical weather. Despite a small decrease in rainfall from 217mm (8.54") in January to 185mm (7.28"), the atmosphere remains delightfully tropical. Weather in February »

Weather in March

March greets Buka with a remarkable increase in rainfall, rising from 185mm (7.28") in February to 226mm (8.9"), making it one of the wettest months of the year. The city's climates uphold its tropical nature, complete with balmy temperatures and high humidity. Weather in March »

Weather in April

Buka experiences a slightly drier climate in April compared to the wetter March, preserving the area’s characteristic high humidity and mild temperatures. Despite having comparable weather conditions to March, April enjoys a slightly subdued rainfall. Weather in April »

Weather in May

May brings a noticeable drop in rainfall down to 162mm (6.38"), making it one of the driest months in Buka. The transition from April's adequate rainfall to May's considerably drier spell is distinctly noticeable. Despite the reduction in rainfall, Buka upholds its tropical climate with consistently warm weather and high humidity. Weather in May »

Weather in June

June continues with the relatively dry trend started in May, providing consistently tropical weather in Buka. The balmy temperatures, consistent humidity, and sunlight make it a perfect month for outdoor activities. The pervasive warmth of the sea coupled with long hours of sunshine highlights the allure of Buka’s tropical climate. Weather in June »

Weather in July

In July, Buka witnesses an increase in wind velocity, rising from 10.7km/h (6.6mph) in June to 13.5km/h (8.4mph). The city maintains its characteristically tropical weather, replete with warm temperatures, minimal rainfall, and consistent humidity. Weather in July »

Weather in August

It's business as usual for Buka's weather in August, mirroring the climatic conditions experienced in July, with a slight increase in wind speed from 13.5km/h (8.4mph) in July to 13.6km/h (8.5mph). It's a month of typical tropical weather in Buka, characterized by high humidity, adequate sunshine, and moderate rainfall. Weather in August »

Weather in September

September brings about a drop in wind speed from 13.6km/h (8.5mph) in August to 11.5km/h (7.1mph) in Buka. The minor reduction in wind speed doesn't significantly alter the prevailing tropical climate rich with warmth, humidity, and moderated rainfall. Weather in September »

Weather in October

October maintains Buka's status quo of tropical climate, leaning more towards the milder side. While the conditions are much the same as in September, slight fluctuations in climatic parameters are observed. Outstanding tropical weather, characterized by high humidity, warm temperatures, and moderated rainfall, portrays a vibrant October in Buka. Weather in October »

Weather in November

November in Buka sees an elevation in rainfall, progressing from 131mm (5.16") in October to 183mm (7.2"). Despite the increase in rainfall, the city retains its consistent tropical weather, replete with warm temperatures and high humidity. Weather in November »

Weather in December

Buka rounds off the year with December that continues the consistent pattern of warm and slightly humid tropical weather. Compared to November, December shows minor shifts in temperature and humidity. Seasonal festivities are enhanced by consistent daytime hours, sufficient sunshine, and high visibility. Weather in December »

Frequently asked questions

How many days does it rain in Buka?

In Buka, during the entire year, the rain falls for 314.3 days and collects up to 2023mm (79.65") of precipitation.

What months are the sea warmest in Buka?

January through May, November and December, with an average sea temperature of 30°C (86°F), are months with the warmest seawater in Buka, Papua New Guinea.

What is the month with the most sunshine in Buka?

The months with the most sunshine in Buka, Papua New Guinea, are January and February, with an average of 9.7h of sunshine.

What are the months with the highest UV index in Buka?

The months with the highest UV index in Buka, Papua New Guinea, are January through March, May through December, with an average maximum UV index of 7.

What is the rainiest month in Buka?

March is the month with the most rainfall in Buka. Rain falls for 27.9 days and accumulates 226mm (8.9") of precipitation.

What is the month with the lowest UV index in Buka?

The month with the lowest UV index is April, with an average maximum UV index of 6.

What time of the year is the hottest in Buka?

In Buka, May is the warmest month, with temperatures averaging a high of 29.3°C (84.7°F) and a low of 26.3°C (79.3°F).

What are the months with the coldest sea water in Buka?

June through October, with an average sea temperature of 29°C (84.2°F), are months with the coldest seawater.

What is the month with the shortest days in Buka?

The month with the shortest days in Buka is June, with an average of 11h and 48min of daylight.

What month is the coldest in Buka?

July, having an average high-temperature of 28.4°C (83.1°F) and an average low-temperature of 25.3°C (77.5°F), is the coldest month.

What is the most humid month in Buka?

July is the most humid month in Buka, with an average relative humidity of 80%.

What is the month with the least sunshine in Buka?

July has the least sunshine of the year in Buka, Papua New Guinea, with an average of 6.6h of sunshine.

What is the driest month in Buka?

The month with the least rainfall is September, when the rain falls for 24.4 days and typically collects 109mm (4.29") of precipitation.

What are the least humid months in Buka?

The months with the lowest humidity in Buka are October and November, with an average relative humidity of 77%.

When are the longest days in Buka?

December has the longest days of the year, with an average of 12h and 24min of daylight.

Is there Daylight Saving Time (DST) in Buka?

Buka does not utilize Daylight Saving Time (DST). +10 timezone is used over the entire year.

Average temperature
Buka, Papua New Guinea

Average temperature - Buka, Papua New Guinea

The warmest month (with the highest average high temperature) is May (29.3°C).
The month with the lowest average high temperature is July (28.4°C).

The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is September (25.1°C).

Average pressure
Buka, Papua New Guinea

Average pressure - Buka, Papua New Guinea

The months with the highest atmospheric pressure are August and September (1010mbar).
The month with the lowest atmospheric pressure is December (1007.7mbar).

Average wind speed
Buka, Papua New Guinea

Average wind speed - Buka, Papua New Guinea

The windiest month (with the highest average wind speed) is August (13.6km/h).
The calmest month (with the lowest average wind speed) is April (7.5km/h).

Average humidity
Buka, Papua New Guinea

Average humidity - Buka, Papua New Guinea

The month with the highest relative humidity is July (80%).
The months with the lowest relative humidity are October and November (77%).

Average rainfall
Buka, Papua New Guinea

Average rainfall - Buka, Papua New Guinea

The wettest month (with the highest rainfall) is March (226mm).
The driest month (with the least rainfall) is September (109mm).

Average rainfall days
Buka, Papua New Guinea

Average rainfall days - Buka, Papua New Guinea

The month with the highest number of rainy days is March (27.9 days).
The month with the least rainy days is September (24.4 days).

Average sea temperature
Buka, Papua New Guinea

Average sea temperature - Buka, Papua New Guinea

The best months for swimming (with the highest average sea temperature) are January, February, March, April, May, November and December (30°C).
The coldest months (with the lowest average sea temperature) are June, July, August, September and October (29°C).

Average daylight / Average sunshine
Buka, Papua New Guinea

Average daylight / Average sunshine - Buka, Papua New Guinea

The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 48min).

The months with the most sunshine are January and February (Average sunshine: 9h and 42min).
The month with the least sunshine is July (Average sunshine: 6h and 36min).

Average sunshine days
Buka, Papua New Guinea

Average sunshine days - Buka, Papua New Guinea

The month with the most sunshine days is October (4.4 days).
The month with the least sunshine days is April (1.6 days).

Average UV index
Buka, Papua New Guinea

Average UV index - Buka, Papua New Guinea

The months with the highest UV index are January, February, March, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is April (UV index 6).

Average cloud cover
Buka, Papua New Guinea

Average cloud cover - Buka, Papua New Guinea

The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are May, September, October and November (Cloud cover 36).

Average visibility
Buka, Papua New Guinea

Average visibility - Buka, Papua New Guinea

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

Buka, Papua New Guinea

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