Climate and monthly weather forecastBintulu, Malaysia
Climate and monthly weather forecast
The climate of Bintulu
Bintulu, situated in Malaysia, falls under the Af classification of the Köppen climate zone. This distinct classification indicates a tropical rainforest climate, predominantly marked by high temperature and heavy rain throughout the year. Upon analysis, the data reveals a notably uniform temperature range from 24.1°C (75.4°F) to 31.2°C (88.2°F) and relative humidity fluctuating only between 78% to 86%.On a monthly basis, the average rainfall varies from 130mm (5.12") to 275mm (10.83"), showcasing the heavy precipitation characteristic of a rainforest climate. Additionally, a distinct lack of seasonal temperature variation, is emphasized by the slight shift between a high of 31.2°C (88.2°F) to a low of 24.1°C (75.4°F) annually. A constant annual sea temperature from 27.4°C (81.3°F) to 30.3°C (86.5°F) supports this consistency.
Interestingly, wind speed remains steady throughout the year, ranging between 6.3km/h (3.9mph) to 8.6km/h (5.3mph), further enforcing the relative climatic stability of Bintulu. It's worth noting that the atmospheric pressure too, stays within a narrow band from 1008.9mb to 1010.1mb over the year.
The best time to visit Bintulu
Proceeding from the climatic parameters, the optimal time to visit Bintulu would be the span from July to September. Although the temperature remains high year-round, during these three months, rainfall mildly reduces to below 150mm (5.91") per month; and daily sunshine extends to over 8.4 hours. Sea temperature holds steady around 30.3°C (86.5°F), an appealing condition for aquatic activities.The worst time to visit Bintulu
Visitors should think twice before planning a trip from November to February. Annual climatic patterns portray this period as experiencing the highest rainfall, with November and December receiving more than 230mm (9.06") rainfall each. Additionally, the relative humidity hits a maximum of 84%, contributing to a conspicuous discomfort.Spring weather in Bintulu
No conventional spring season exists due to the tropical rainforest climate. March to May, however, sees slight changes. Average daily high temperature marginally rises from 29.2°C (84.6°F) to 31.2°C (88.2°F). Rainfall increases from 150mm (5.91") in March to 182mm (7.17") in May, and days with rainfall peak to 27 in May, emphasizing the high precipitation of this period.Summer weather in Bintulu
June through August, which could be typically considered 'summer' months, experience relatively less rainfall with it dipping below 156mm (6.14") from June to August. Daily hours of sunshine increase to above 8.1 during these months. Despite that, the high temperature holds steady around a high of 30.9°C (87.6°F) to 31.2°C (88.2°F), reinforcing the continued hot conditions.Autumn weather in Bintulu
In absence of an Autumn per se, September to November does witness some changes. September brings a slight dip in rainfall to 130mm (5.12"), the lowest annual average, but it sharply increases to as high as 236mm (9.29") by November.Winter weather in Bintulu
A conventional cold winter season is essentially nonexistent. December, while being one of the coolest months, still witnesses a significant high temperature of 29.5°C (85.1°F). It's also the month with the highest average rainfall, marking it as a period of pronounced wet conditions. The average daylight decreases to the annual minimum of 11.9 hours.Weather in January
January in Bintulu, Malaysia, generally introduces the year with relatively high humidity and consistent temperatures, paired with a significant amount of rainfall. Moving from December to January, Bintulu's weather carries over substantial rain, creating an atmosphere steeped in moisture while temperatures maintain a balance. Weather in January »Weather in February
February in Bintulu witnesses a slight break in rainfall as compared to the record set by the previous month. Its weather characteristics still cling to early year patterns with high humidity and consistent temperatures. Sea temperatures, however, record a minimal dip from 28°C (82.4°F) in January to 27.4°C (81.3°F) in February. Weather in February »Weather in March
Weather in Bintulu, Malaysia, for March sees a gradual transition with the temperature scale nudging upwards and rainfall seeing a decrease. This shift follows the pattern observed in the concluding days of February. Sea temperature bounces back to 28°C (82.4°F), which is seen as a reflection of the increasing ambient temperature. Weather in March »Weather in April
In April, Bintulu, Malaysia, experiences a marked rise in temperature, reinforcing the transition from the preceding months. Rainfall stays on par with March without significant alterations, while the relative humidity experiences a subtle decrease. Weather in April »Weather in May
May, in Bintulu, Malaysia, presents a further escalation in temperature, reaching an average high of 31.2°C (88.2°F). This month holds the distinction of being one of the warmest periods of the year. Despite the mercury soar, the rainfall remains consistent with the preceding month, contributing to an average humidity of 80%. Weather in May »Weather in June
June ushers in a marginally cooler period for Bintulu, Malaysia, with temperatures witnessing a subtle dip from the highs of May. Interestingly, June carries a significant weather shift with a lessened cloud cover due to reduced rainfall. Weather in June »Weather in July
July extends the trend from June, with reduced rainfall and high temperatures being the prominent characters of Bintulu's weather. With an average of 23.6 rainy days, this Malaysian city experiences a climate that is transitional between the earlier wet months and the drier months ahead. Weather in July »Weather in August
Weather in Bintulu, Malaysia, in August demonstrates characteristically high temperatures, but the average dips slightly from that of July, settling down to a warm 31.2°C (88.2°F). As the climate progresses through the year, the pattern of reduced rainfall continues, with August recording an average of 144mm (5.67") of rainfall. Weather in August »Weather in September
Bintulu’s weather in September signifies a definitive ushering in of the drier spell with an average rainfall of 130mm (5.12"). This lowering rainfall from the August showers correlates with a slight decrease in humidity levels in the city. Weather in September »Weather in October
In October, Bintulu sees a notable return to heavier rainfall patterns, evidenced by a sizable increase in rainfall, suggesting a drift back towards the longstanding climatic consistency. Accompanying the upsurge in rainfall, the city's average humidity climbs marginally. Weather in October »Weather in November
November reaffirms Bintulu's weather narrative by carrying forth the increasing trend of downpours with an average rainfall of 236mm (9.29"). This is the second-highest monthly rainfall, indicating a notable shift from the drier spell of the preceding months. Weather in November »Weather in December
Rounding out the year, December in Bintulu, Malaysia, signifies the height of the rainy season, with an escalated average rainfall of 275mm (10.83"), the year's highest. The city’s weather reaches a soggy climax while temperature and sea temperatures align accurately with the trend of the preceding months. Weather in December »Updated: Feb 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In Bintulu, Malaysia, the coldest months are January and February, registering an average high-temperature of 28.8°C (83.8°F).
Throughout the year, in Bintulu, there are 319.1 rainfall days, and 2216mm (87.24") of precipitation is accumulated.
January has the least sunshine of the year in Bintulu, Malaysia, with an average of 7h of sunshine.
The months with the lowest UV index are January and December, with an average maximum UV index of 6.
February is the most humid month in Bintulu, with an average relative humidity of 86%.
The month with the coldest seawater in Bintulu is February, with an average sea temperature of 27.4°C (81.3°F).
The months with the highest UV index are February through November, with an average maximum UV index of 7.
The height of temperatures in Bintulu is seen during May and August, averaging a high-temperature of 31.2°C (88.2°F).
May through July, with an average sea temperature of 30.3°C (86.5°F), are months with the warmest seawater in Bintulu, Malaysia.
June has the longest days of the year in Bintulu, with an average of 12h and 18min of daylight.
The least humid month in Bintulu, Malaysia, is August, with an average relative humidity of 78%.
The month with the least rainfall in Bintulu, Malaysia, is September, when the rain falls for 26.2 days and typically collects 130mm (5.12") of precipitation.
With an average of 8.6h of sunshine, September has the most sunshine of the year in Bintulu.
The month with the most rainfall is December, when the rain falls for 28.7 days and typically aggregates up to 275mm (10.83") of precipitation.
December has the shortest days of the year, with an average of 11h and 54min of daylight.
Bintulu, Malaysia, does not observe Daylight Saving Time (DST). +08 timezone is used throughout the entire year.
Average temperature
Bintulu, Malaysia
The warmest months (with the highest average high temperature) are May and August (31.2°C).
The months with the lowest average high temperature are January and February (28.8°C).
The month with the highest average low temperature is May (24.9°C).
The coldest month (with the lowest average low temperature) is February (23.7°C).
Average pressure
Bintulu, Malaysia
- Average pressure in January:
1009.7mbar - Average pressure in February:
1010.1mbar - Average pressure in March:
1010.1mbar - Average pressure in April:
1009.6mbar - Average pressure in May:
1009mbar - Average pressure in June:
1009.2mbar
- Average pressure in July:
1009.2mbar - Average pressure in August:
1009.3mbar - Average pressure in September:
1009.8mbar - Average pressure in October:
1009.7mbar - Average pressure in November:
1008.9mbar - Average pressure in December:
1009mbar
The months with the highest atmospheric pressure are February and March (1010.1mbar).
The month with the lowest atmospheric pressure is November (1008.9mbar).
Average wind speed
Bintulu, Malaysia
- Average wind speed in January:
7.9km/h - Average wind speed in February:
8.6km/h - Average wind speed in March:
7.7km/h - Average wind speed in April:
6.6km/h - Average wind speed in May:
6.3km/h - Average wind speed in June:
6.5km/h
- Average wind speed in July:
6.8km/h - Average wind speed in August:
6.7km/h - Average wind speed in September:
6.7km/h - Average wind speed in October:
7km/h - Average wind speed in November:
6.8km/h - Average wind speed in December:
7.2km/h
The windiest month (with the highest average wind speed) is February (8.6km/h).
The calmest month (with the lowest average wind speed) is May (6.3km/h).
Average humidity
Bintulu, Malaysia
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is August (78%).
Average rainfall
Bintulu, Malaysia
- Average rainfall in January:
227mm - Average rainfall in February:
172mm - Average rainfall in March:
150mm - Average rainfall in April:
170mm - Average rainfall in May:
182mm - Average rainfall in June:
156mm
- Average rainfall in July:
150mm - Average rainfall in August:
144mm - Average rainfall in September:
130mm - Average rainfall in October:
224mm - Average rainfall in November:
236mm - Average rainfall in December:
275mm
The wettest month (with the highest rainfall) is December (275mm).
The driest month (with the least rainfall) is September (130mm).
Average rainfall days
Bintulu, Malaysia
- Average rainfall days in January:
28.6 days - Average rainfall days in February:
25.3 days - Average rainfall days in March:
26.4 days - Average rainfall days in April:
27.1 days - Average rainfall days in May:
27 days - Average rainfall days in June:
23.3 days
- Average rainfall days in July:
23.6 days - Average rainfall days in August:
25.9 days - Average rainfall days in September:
26.2 days - Average rainfall days in October:
28 days - Average rainfall days in November:
29 days - Average rainfall days in December:
28.7 days
The month with the highest number of rainy days is November (29 days).
The month with the least rainy days is June (23.3 days).
Average sea temperature
Bintulu, Malaysia
The best months for swimming (with the highest average sea temperature) are May, June and July (30.3°C).
The coldest month (with the lowest average sea temperature) is February (27.4°C).
Average daylight / Average sunshine
Bintulu, Malaysia
- Average daylight in January:
12h and 0min - Average daylight in February:
12h and 0min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 12min - Average daylight in May:
12h and 18min - Average daylight in June:
12h and 18min
- Average daylight in July:
12h and 18min - Average daylight in August:
12h and 12min - Average daylight in September:
12h and 6min - Average daylight in October:
12h and 0min - Average daylight in November:
12h and 0min - Average daylight in December:
11h and 54min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in January:
7h and 0min - Average sunshine in February:
7h and 30min - Average sunshine in March:
7h and 48min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 18min - Average sunshine in June:
8h and 6min
- Average sunshine in July:
8h and 24min - Average sunshine in August:
8h and 30min - Average sunshine in September:
8h and 36min - Average sunshine in October:
8h and 0min - Average sunshine in November:
7h and 42min - Average sunshine in December:
7h and 24min
The month with the most sunshine is September (Average sunshine: 8h and 36min).
The month with the least sunshine is January (Average sunshine: 7h and 0min).
Average sunshine days
Bintulu, Malaysia
- Average sunshine days in January:
1.8 days - Average sunshine days in February:
2.3 days - Average sunshine days in March:
3.4 days - Average sunshine days in April:
2.3 days - Average sunshine days in May:
2.8 days - Average sunshine days in June:
5.3 days
- Average sunshine days in July:
5.8 days - Average sunshine days in August:
3.7 days - Average sunshine days in September:
3.3 days - Average sunshine days in October:
1.7 days - Average sunshine days in November:
0.7 days - Average sunshine days in December:
1.9 days
The month with the most sunshine days is July (5.8 days).
The month with the least sunshine days is November (0.7 days).
Average UV index
Bintulu, Malaysia
The months with the highest UV index are February, March, April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January and December (UV index 6).
Average cloud cover
Bintulu, Malaysia
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility
Bintulu, Malaysia
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).
