Climate and monthly weather forecast
Jerudong, Brunei

Climate and monthly weather forecast

The climate of Jerudong

Jerudong, a small city located in Brunei, adheres to the Af - predominate climate classification of Köppen, portraying a tropical rainforest climate. Displaying warm temperatures and heavy rainfall all year round, no significant variation in climate can be noticed for this place.

Throughout the year, the temperature oscillates from a low of 25°C (77°F) to a peak of 31.3°C (88.3°F), signifying a narrow difference in the varying temperatures across the time span of 12 months. On the other hand, there is a notable fluctuation in rainfall rates, ranging from a low of 73mm (2.87") in February to a high of 206mm (8.11") in December.

Humidity stays relatively constant, with a slight dip from 81% at the start of the year to a minimum of 75% in September. The city experiences minimal cloud cover, with average daylight duration ranging from 11.8 hours to 12.4 hours and relatively stable sunshine hours, which vary slightly from a low of 8.2 hours in January up to a high of 9 hours in September.

Unique weather pattern, which qualifies Jerudong to be classified under the tropical rainforest climate, is the substantial amount of rainfall observed almost every day. Also, the uniform temperature and humidity levels observed throughout the year, attribute to the city’s specific climate.

The best time to visit Jerudong

To explore the most favourable weather conditions, one should visit Jerudong between March and May. During this period, the city witnesses the highest temperatures, up to 31.3°C (88.3°F), providing visitors with an ideal tropical environment to enjoy outdoor activities. Moreover, these months, particularly May, also record fewer rainfall days, promising less disruption to sightseeing plans.

The worst time to visit Jerudong

Rainfall is at its peak in Jerudong towards the end of the year. With the highest rainfall of 206mm (8.11"), December is considered the wettest month of the year. High rainfall alongside lower visibility of 9km (5.6mi), due to increased precipitation, marks December as a challenging time for outdoor explorations and is hence, considered the worst time to plan a visit.

Spring weather in Jerudong

Spring season in Jerudong, observe an average peak temperature of 30.7°C (87.3°F) and a low of 25.8°C (78.4°F). During this period, the city experiences over 25 days of rainfall with 127mm (5") precipitation in April. Despite this, the city displays ample sunshine for about 8.8 hours per day throughout the spring season contributing to its tropical charm.

Summer weather in Jerudong

The summer months from June to August, are relatively warm in Jerudong, with an average peak temperature of 31.3°C (88.3°F) and a low of 25.9°C (78.6°F). Despite the heat, the city continues to experience a high rate of rainfall averaging 154mm (6.06") per month, over 25 days. Sunshine hours slightly decrease from 12.4 in June to 12.3 in August.

Autumn weather in Jerudong

From September to November, autumn in Jerudong sees an average high temperature of 30.8°C (87.4°F) and a low of 25.8°C (78.4°F). The city continues to face significant rains averaging 152mm (5.98") per month during this season. Days of sunshine slightly decline, but the city continues to enjoy a relative constant daylight period of 12.1 hours.

Winter weather in Jerudong

Winter season, spanning from December to February, brings slight relief from the heat, with temperatures ranging from a low of 25.2°C (77.4°F) in January to a high of 30.1°C (86.2°F) in December. This period witnesses the highest amounts of rainfall, averaging 141mm (5.55") in December, dropping slightly to 144mm (5.67") in January and further lowering to 73mm (2.87") in February. Despite this, the city still enjoys adequate sunshine hours of 8.3 per day, marking a relatively warm winter.

Weather in January

January invites a new year with a relatively high range of humidity, registering at 81%. The occurrence of rainfall dominates most days of the month, making outdoor activities a bit challenging. Expect overcast skies as the maximum cloud percentage hovers around 42%. Weather in January »

Weather in February

A gradual transition in weather is expected as February commences in Jerudong, Brunei. Although rain is frequent, it lessens compared to the month of January. Sight visibility improves as the month progresses, promoting better driving conditions. Weather in February »

Weather in March

March stands as the pivotal month presenting an intriguing mixture of conditions, with the biased scales leaning marginally toward a more pleasant weather. March records a slight drop in the rainfall volume from February (from 73mm (2.87") to 104mm (4.09")). Weather in March »

Weather in April

April comes with warmer days, seeing a minor increase in the high temperature from 29.8°C (85.6°F) in March to 30.7°C (87.3°F). Yet weather conditions remain tolerable, as no extreme temperature highs are recorded. The daylight hours see a slight increase, but the overall weather remains predominately cloudy. Weather in April »

Weather in May

The highest high temperature of 31.3°C (88.3°F) dominates the weather conversation for May. A sustained humidity level, similar to that of April, governs the overall daily weather atmosphere. A rise in the volume of rainfall is notable, which prompts the balancing act between the anticipated summer and existing tropical climate. Weather in May »

Weather in June

June in Jerudong experiences a slight drop in the high temperature, compared to its May counterpart. Recordings show a decrease in humidity, becoming the least humid month of the year until now. A balancing act between the daylight and cloudiness continues, providing a steady rhythm to the daily life of residents. Weather in June »

Weather in July

The month of July offers a consistent weather pattern, similar to June. High temperatures stabilize around the lower 30s°C. A subtle drop in rainfall is observed; however, it does not greatly alter the overall rainy season experience. Weather in July »

Weather in August

August does not deviate much from July in terms of the overall temperature spectrum. A noticeable increase in the daylight hours can be observed. However, this month records an equal proportion of sunshine and overcast periods. The wind speed amplifies slightly, reaching 9.1km/h (5.7mph) and supplementing the overall weather conditions in the late summer days. Weather in August »

Weather in September

September unveils a minor slide in high temperatures, standing at a comfortable 30.8°C (87.4°F). Rainfall volume levels show a downward trend compared to the previous months. This month also records a consistent daylight duration similar to August. Weather in September »

Weather in October

Weather patterns in October remain quite similar to September. However, a notable surge in the rainfall volume, reaching 177mm (6.97"), defines the major change in October’s weather. High temperatures demonstrate a mild decline, but the shift is barely noticeable. Weather in October »

Weather in November

As the second-last month of the year, November experiences a minor decrease in high temperatures, settling at 30.1°C (86.2°F). The climatological setup is dominated by increased cloud percentage compared to the preceding months. Weather in November »

Weather in December

Closing off the year, December sustains a consistent weather pattern, similar to November. Interestingly, December sees a peak in recorded rainfall, with a volume of 206mm (8.11"). The cloudiness fluctuates around a high of 42%, similar to the beginning of the year. Weather in December »

Frequently asked questions

What is the coldest time of year?
Jerudong experiences its coldest period in January and February, averaging a high-temperature of 29.2°C (84.6°F).
What is the most humid month?
The months with the highest humidity are January through March, with an average relative humidity of 81%.
How many days does it rain?
Throughout the year, there are 310.9 rainfall days, and 1693mm (66.65") of precipitation is accumulated.
What is the month with the least sunshine?
With an average of 8.2h of sunshine, January has the least sunshine of the year.
What are the months with the highest UV index?
January through December, with an average maximum UV index of 7, are months with the highest UV index.
What are the months with the lowest UV index?
January through December, with an average maximum UV index of 7, are months with the lowest UV index.
What is the driest month?
February is the month with the least rainfall. Rain falls for 21.3 days and accumulates 73mm (2.87") of precipitation.
What are the warmest months?
In Jerudong, the warmest months are May and June, registering an average high-temperature of 31.3°C (88.3°F).
When are the longest days?
The month with the longest days is June, with an average of 12h and 24min of daylight.
What are the least humid months?
The months with the lowest humidity are August and September, with an average relative humidity of 75%.
What month has the most sunshine?
With an average of 9h of sunshine, September has the most sunshine of the year.
What is the rainiest month?
The month with the most rainfall is December, when the rain falls for 28.7 days and typically aggregates up to 206mm (8.11") of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 11h and 48min of daylight.
Is there Daylight Saving Time (DST) in Jerudong?
Jerudong does not observe Daylight Saving Time (DST). +08 timezone is used throughout the entire year.
Average temperature - Jerudong, Brunei
Average temperature
Jerudong, Brunei

The warmest months (with the highest average high temperature) are May and June (31.3°C).
The months with the lowest average high temperature are January and February (29.2°C).

The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is February (25°C).

Average pressure - Jerudong, Brunei
Average pressure
Jerudong, Brunei

The months with the highest atmospheric pressure are February and March (1010.5mbar).
The months with the lowest atmospheric pressure are November and December (1009.3mbar).

Average wind speed - Jerudong, Brunei
Average wind speed
Jerudong, Brunei

The windiest month (with the highest average wind speed) is February (10.2km/h).
The calmest month (with the lowest average wind speed) is May (7.7km/h).

Average humidity - Jerudong, Brunei
Average humidity
Jerudong, Brunei

The months with the highest relative humidity are January, February and March (81%).
The months with the lowest relative humidity are August and September (75%).

Average rainfall - Jerudong, Brunei
Average rainfall
Jerudong, Brunei

The wettest month (with the highest rainfall) is December (206mm).
The driest month (with the least rainfall) is February (73mm).

Average rainfall days - Jerudong, Brunei
Average rainfall days
Jerudong, Brunei

The month with the highest number of rainy days is December (28.7 days).
The month with the least rainy days is February (21.3 days).

Average daylight / Average sunshine - Jerudong, Brunei
Average daylight / Average sunshine
Jerudong, Brunei

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

The month with the most sunshine is September (Average sunshine: 9h and 0min).
The month with the least sunshine is January (Average sunshine: 8h and 12min).

Average sunshine days - Jerudong, Brunei
Average sunshine days
Jerudong, Brunei

The months with the most sunshine days are February and June (4.8 days).
The month with the least sunshine days is November (0.6 days).

Average UV index - Jerudong, Brunei
Average UV index
Jerudong, Brunei

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

Average visibility - Jerudong, Brunei
Average visibility
Jerudong, Brunei

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

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