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May Weather in Brunei Brunei

Daily high temperatures are around 90°F, rarely falling below 87°F or exceeding 92°F. The highest daily average high temperature is 90°F on May 20.

Daily low temperatures are around 77°F, rarely falling below 74°F or exceeding 79°F. The highest daily average low temperature is 77°F on May 13.

For reference, on May 10, the hottest day of the year, temperatures in Brunei typically range from 77°F to 90°F, while on October 8, the coldest day of the year, they range from 75°F to 88°F.

Average High and Low Temperature in May in Brunei

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on May. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in May in Brunei

Average Hourly Temperature in May in BruneiMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMAprJunwarmwarmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.
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The month of May in Brunei experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 87% throughout the month. The highest chance of overcast or mostly cloudy conditions is 88% on May 5.

The clearest day of the month is May 31, with clear, mostly clear, or partly cloudy conditions 14% of the time.

For reference, on November 12, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 91%, while on March 3, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 25%.

Cloud Cover Categories in May in Brunei

Cloud Cover Categories in May in BruneiMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AprJunMar 325%Mar 325%May 113%May 113%May 3114%May 3114%May 1112%May 1112%May 2113%May 2113%partly cloudymostly cloudyovercastmostly clear
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Brunei, the chance of a wet day over the course of May is gradually decreasing, starting the month at 57% and ending it at 54%.

For reference, the year's highest daily chance of a wet day is 71% on November 21, and its lowest chance is 29% on March 7.

Probability of Precipitation in May in Brunei

Probability of Precipitation in May in BruneiMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%5%5%10%10%15%15%20%20%25%25%30%30%35%35%40%40%45%45%50%50%55%55%60%60%AprJunMay 157%May 157%May 3154%May 3154%May 1156%May 1156%May 2154%May 2154%rain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during May in Brunei is gradually increasing, starting the month at 7.4 inches, when it rarely exceeds 11.0 inches or falls below 3.8 inches, and ending the month at 7.8 inches, when it rarely exceeds 11.6 inches or falls below 4.3 inches.

The highest average 31-day accumulation is 7.8 inches on May 23.

Average Monthly Rainfall in May in Brunei

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.

Over the course of May in Brunei, the length of the day is essentially constant. The shortest day of the month is May 1, with 12 hours, 17 minutes of daylight and the longest day is May 31, with 12 hours, 22 minutes of daylight.

Hours of Daylight and Twilight in May in Brunei

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The latest sunrise of the month in Brunei is 6:10 AM on May 1 and the earliest sunrise is 2 minutes, 23 seconds earlier at 6:07 AM on May 22.

The earliest sunset is 6:26 PM on May 3 and the latest sunset is 3 minutes later at 6:30 PM on May 31.

Daylight saving time is not observed in Brunei during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 6:11 AM and sets 12 hours, 23 minutes later, at 6:34 PM, while on December 21, the shortest day of the year, it rises at 6:23 AM and sets 11 hours, 52 minutes later, at 6:15 PM.

Sunrise & Sunset with Twilight in May in Brunei

Sunrise & Sunset with Twilight in May in BruneiMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMAprJun6:07 AM6:07 AMMay 226:28 PMMay 226:28 PM6:09 AM6:09 AMMay 36:26 PMMay 36:26 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of May. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in May in Brunei

Solar Elevation and Azimuth in May in BruneiMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMAprJun0010102020203030404050505060607070800001010202030303040405050606060707080
northeastsouthwest
Solar elevation and azimuth over the course of May 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for May 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in May in Brunei

Moon Rise, Set & Phases in May in BruneiMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAprJunApr 92:22 AMApr 92:22 AMApr 247:50 AMApr 247:50 AMMay 811:23 AMMay 811:23 AMMay 239:54 PMMay 239:54 PMJun 68:38 PMJun 68:38 PMJun 229:09 AMJun 229:09 AM6:28 AM6:28 AM7:01 PM7:01 PM5:56 PM5:56 PM6:09 AM6:09 AM5:56 AM5:56 AM6:37 PM6:37 PM6:15 PM6:15 PM6:24 AM6:24 AM5:33 AM5:33 AM6:21 PM6:21 PM5:57 PM5:57 PM6:06 AM6:06 AM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.
May 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
50%12:08 AMESE12:20 PMWSW-6:15 AMS233,469 mi
2
45%1:02 AMESE1:16 PMWSW-7:10 AMS231,035 mi
3
33%1:53 AMESE2:09 PMWSW-8:02 AMS228,843 mi
4
22%2:41 AME3:01 PMW-8:52 AMS227,085 mi
5
13%3:28 AME3:53 PMW-9:40 AMS225,967 mi
6
6%4:16 AME4:46 PMW-10:30 AMN225,675 mi
7
1%5:04 AMENE5:40 PMWNW-11:21 AMN226,329 mi
8
0%5:56 AMENE6:37 PMWNW-12:15 PMN227,953 mi
9
2%6:51 AMENE7:37 PMWNW-1:12 PMN230,454 mi
10
6%7:48 AMENE8:38 PMWNW-2:12 PMN233,626 mi
11
12%8:48 AMENE9:38 PMWNW-3:13 PMN237,185 mi
12
21%9:46 AMENE10:34 PMWNW-4:11 PMN240,811 mi
13
30%10:42 AMENE11:26 PMWNW-5:05 PMN244,201 mi
14
40%11:34 AMENE--5:55 PMN247,100 mi
15
50%-12:13 AMWNW12:22 PMENE6:40 PMN249,328 mi
16
59%-12:55 AMWNW1:07 PMENE7:22 PMN250,773 mi
17
69%-1:35 AMW1:49 PME8:01 PMN251,400 mi
18
77%-2:13 AMW2:30 PME8:40 PMS251,236 mi
19
85%-2:50 AMW3:11 PME9:19 PMS250,363 mi
20
91%-3:27 AMW3:52 PME9:59 PMS248,903 mi
21
96%-4:06 AMWSW4:37 PMESE10:41 PMS247,005 mi
22
99%-4:48 AMWSW5:24 PMESE11:28 PMS244,823 mi
23
100%-5:34 AMWSW6:15 PMESE--
24
100%-6:24 AMWSW7:10 PMESE12:18 AMS242,511 mi
25
99%-7:19 AMWSW8:08 PMESE1:14 AMS240,199 mi
26
95%-8:17 AMWSW9:06 PMESE2:12 AMS237,987 mi
27
89%-9:16 AMWSW10:04 PMESE3:12 AMS235,942 mi
28
80%-10:15 AMWSW10:59 PMESE4:10 AMS234,098 mi
29
71%-11:11 AMWSW11:50 PMESE5:06 AMS232,469 mi
30
59%-12:05 PMWSW-5:58 AMS231,073 mi
31
50%12:38 AME12:56 PMW-6:48 AMS229,942 mi

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The chance that a given day will be muggy in Brunei is essentially constant during May, remaining around 100% throughout.

For reference, on January 1, the muggiest day of the year, there are muggy conditions 100% of the time, while on July 31, the least muggy day of the year, there are muggy conditions 100% of the time.

Humidity Comfort Levels in May in Brunei

Humidity Comfort Levels in May in BruneiMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%AprJunMay 1100%May 1100%May 31100%May 31100%May 11100%May 11100%May 21100%May 21100%miserablemiserableoppressiveoppressive
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Brunei is essentially constant during May, remaining within 0.1 miles per hour of 4.7 miles per hour throughout.

For reference, on January 27, the windiest day of the year, the daily average wind speed is 7.4 miles per hour, while on May 11, the calmest day of the year, the daily average wind speed is 4.6 miles per hour.

The lowest daily average wind speed during May is 4.6 miles per hour on May 12.

Average Wind Speed in May in Brunei

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The wind direction in Brunei during May is predominantly out of the north from May 1 to May 2 and the west from May 2 to May 31.

Wind Direction in May in Brunei

Wind Direction in May in BruneiNWMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%AprJunwestsouthnortheast
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Brunei is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average surface water temperature in Brunei is essentially constant during May, remaining around 86°F throughout.

Average Water Temperature in May in Brunei

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Temperatures in Brunei are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

Time Spent in Various Temperature Bands and the Growing Season in May in Brunei

Time Spent in Various Temperature Bands and the Growing Season in May in BruneiMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AprJun100%May 16100%May 16warmhotcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days in Brunei are very rapidly increasing during May, increasing by 947°F, from 3,708°F to 4,655°F, over the course of the month.

Growing Degree Days in May in Brunei

The average growing degree days accumulated over the course of May, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy in Brunei is essentially constant during May, remaining within 0.1 kWh of 4.5 kWh throughout.

The lowest average daily incident shortwave solar energy during May is 4.4 kWh on May 24.

Average Daily Incident Shortwave Solar Energy in May in Brunei

Average Daily Incident Shortwave Solar Energy in May in BruneiMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhAprJunMay 244.4 kWhMay 244.4 kWhMay 14.6 kWhMay 14.6 kWhMay 114.5 kWhMay 114.5 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of Brunei are 4.500 deg latitude, 114.667 deg longitude, and 0 ft elevation.

The topography within 2 miles of Brunei is essentially flat, with a maximum elevation change of 0 feet and an average elevation above sea level of 0 feet. Within 10 miles is also essentially flat (0 feet). Within 50 miles is also essentially flat (0 feet).

The area within 2 miles of Brunei is covered by trees (97%), within 10 miles by trees (96%), and within 50 miles by trees (54%) and water (31%).

This report illustrates the typical weather in Brunei, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used for this report can be found on the Brunei Airport page.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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