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October Weather in Christmas Island Christmas Island

Daily high temperatures are around 81°F, rarely falling below 79°F or exceeding 84°F.

Daily low temperatures are around 76°F, rarely falling below 74°F or exceeding 78°F.

For reference, on March 22, the hottest day of the year, temperatures in Christmas Island typically range from 78°F to 84°F, while on August 28, the coldest day of the year, they range from 75°F to 80°F.

Average High and Low Temperature in October in Christmas Island

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 October. 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 October in Christmas Island

Average Hourly Temperature in October in Christmas IslandOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMSepNovwarm
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 October in Christmas Island experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 65% to 69%.

The clearest day of the month is October 5, with clear, mostly clear, or partly cloudy conditions 36% of the time.

For reference, on February 5, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 75%, while on July 31, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 46%.

Cloud Cover Categories in October in Christmas Island

Cloud Cover Categories in October in Christmas IslandOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SepNovOct 135%Oct 135%Oct 3131%Oct 3131%Oct 1135%Oct 1135%Oct 2133%Oct 2133%clearmostly clearpartly cloudymostly cloudyovercast
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 Christmas Island, the chance of a wet day over the course of October is very rapidly increasing, starting the month at 5% and ending it at 17%.

For reference, the year's highest daily chance of a wet day is 55% on February 5, and its lowest chance is 4% on September 4.

Probability of Precipitation in October in Christmas Island

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 October in Christmas Island is rapidly increasing, starting the month at 0.6 inches, when it rarely exceeds 1.8 inches or falls below -0.0 inches, and ending the month at 1.7 inches, when it rarely exceeds 5.2 inches.

Average Monthly Rainfall in October in Christmas Island

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 October in Christmas Island, the length of the day is gradually increasing. From the start to the end of the month, the length of the day increases by 17 minutes, implying an average daily increase of 34 seconds, and weekly increase of 3 minutes, 57 seconds.

The shortest day of the month is October 1, with 12 hours, 12 minutes of daylight and the longest day is October 31, with 12 hours, 29 minutes of daylight.

Hours of Daylight and Twilight in October in Christmas Island

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 Christmas Island is 5:41 AM on October 1 and the earliest sunrise is 14 minutes earlier at 5:26 AM on October 31.

The earliest sunset is 5:52 PM on October 6 and the latest sunset is 2 minutes, 34 seconds later at 5:55 PM on October 31.

Daylight saving time is not observed in Christmas Island during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:33 AM and sets 12 hours, 45 minutes later, at 6:17 PM, while on June 20, the shortest day of the year, it rises at 6:13 AM and sets 11 hours, 31 minutes later, at 5:44 PM.

Sunrise & Sunset with Twilight in October in Christmas Island

Sunrise & Sunset with Twilight in October in Christmas IslandOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PMSepNov5:26 AM5:26 AMOct 315:55 PMOct 315:55 PM5:38 AM5:38 AMOct 65:52 PMOct 65:52 PM5:30 AM5:30 AMOct 215:53 PMOct 215:53 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of October. 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 October in Christmas Island

Solar Elevation and Azimuth in October in Christmas IslandOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMSepNov0010102020203030404050505060607070800001010202030303040405050606060707080
northeastsouthwest
Solar elevation and azimuth over the course of October 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 October 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 October in Christmas Island

Moon Rise, Set & Phases in October in Christmas IslandOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSepNovSep 38:56 AMSep 38:56 AMSep 189:35 AMSep 189:35 AMOct 31:50 AMOct 31:50 AMOct 176:27 PMOct 176:27 PMNov 17:48 PMNov 17:48 PMNov 164:29 AMNov 164:29 AM6:03 AM6:03 AM6:09 PM6:09 PM5:13 PM5:13 PM5:47 AM5:47 AM5:48 AM5:48 AM6:18 PM6:18 PM5:46 PM5:46 PM5:54 AM5:54 AM5:00 AM5:00 AM5:46 PM5:46 PM5:27 PM5:27 PM5:22 AM5:22 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.
Oct 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
2%4:39 AME4:51 PMW-10:45 AMN252,031 mi
2
0%5:14 AME5:34 PMW-11:23 AMN252,515 mi
3
0%5:48 AME6:18 PMW-12:02 PMN252,566 mi
4
2%6:23 AME7:02 PMWSW-12:41 PMS252,186 mi
5
6%7:00 AMESE7:49 PMWSW-1:23 PMS251,354 mi
6
11%7:40 AMESE8:38 PMWSW-2:08 PMS250,037 mi
7
18%8:24 AMESE9:31 PMWSW-2:56 PMS248,197 mi
8
26%9:12 AMESE10:25 PMWSW-3:48 PMS245,813 mi
9
36%10:05 AMESE11:21 PMWSW-4:43 PMS242,899 mi
10
46%11:01 AMESE--5:40 PMS239,523 mi
11
50%-12:17 AMWSW12:00 PMESE6:37 PMS235,828 mi
12
69%-1:10 AMWSW12:59 PMESE7:32 PMS232,034 mi
13
79%-2:01 AMWSW1:58 PMESE8:25 PMS228,430 mi
14
88%-2:49 AMWSW2:55 PMESE9:16 PMN225,350 mi
15
95%-3:35 AMW3:51 PME10:06 PMN223,122 mi
16
99%-4:20 AMW4:48 PME10:57 PMN222,022 mi
17
100%-5:06 AMW5:46 PME11:49 PMN222,207 mi
18
99%-5:54 AMWNW6:47 PMENE--
19
98%-6:45 AMWNW7:50 PMENE12:45 AMN223,685 mi
20
92%-7:40 AMWNW8:54 PMENE1:44 AMN226,304 mi
21
85%-8:39 AMWNW9:57 PMENE2:46 AMN229,776 mi
22
75%-9:39 AMWNW10:57 PMENE3:48 AMN233,737 mi
23
65%-10:39 AMWNW11:52 PMENE4:49 AMN237,812 mi
24
50%-11:36 AMWNW-5:45 AMN241,675 mi
25
44%12:41 AMENE12:29 PMWNW-6:36 AMN245,082 mi
26
34%1:24 AMENE1:19 PMWNW-7:22 AMN247,881 mi
27
25%2:04 AMENE2:05 PMWNW-8:05 AMN249,996 mi
28
17%2:40 AME2:49 PMW-8:45 AMN251,420 mi
29
10%3:15 AME3:32 PMW-9:23 AMN252,189 mi
30
5%3:49 AME4:16 PMW-10:01 AMN252,370 mi
31
2%4:24 AME5:00 PMWSW-10:41 AMN252,042 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 Christmas Island is essentially constant during October, remaining around 99% throughout.

For reference, on January 20, the muggiest day of the year, there are muggy conditions 100% of the time, while on August 17, the least muggy day of the year, there are muggy conditions 96% of the time.

Humidity Comfort Levels in October in Christmas Island

Humidity Comfort Levels in October in Christmas IslandOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SepNovOct 199%Oct 199%Oct 31100%Oct 31100%Oct 1199%Oct 1199%Oct 21100%Oct 21100%oppressiveoppressivemuggymuggymiserablemiserablehumidhumid
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 Christmas Island is decreasing during October, decreasing from 16.1 miles per hour to 14.6 miles per hour over the course of the month.

For reference, on August 4, the windiest day of the year, the daily average wind speed is 17.5 miles per hour, while on December 30, the calmest day of the year, the daily average wind speed is 9.6 miles per hour.

Average Wind Speed in October in Christmas Island

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

The hourly average wind direction in Christmas Island throughout October is predominantly from the east, with a peak proportion of 82% on October 1.

Wind Direction in October in Christmas Island

Wind Direction in October in Christmas IslandESOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%SepNovsoutheast
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).

Christmas Island 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 Christmas Island is essentially constant during October, remaining within 1°F of 80°F throughout.

Average Water Temperature in October in Christmas Island

Average Water Temperature in October in Christmas IslandOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313177°F77°F78°F78°F79°F79°F80°F80°F81°F81°F82°F82°F83°F83°F84°F84°FSepNovOct 180°FOct 180°FOct 3181°FOct 3181°FOct 1180°FOct 1180°FOct 2180°FOct 2180°F
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 Christmas Island 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 October in Christmas Island

Time Spent in Various Temperature Bands and the Growing Season in October in Christmas IslandOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SepNov100%Oct 16100%Oct 16comfortablewarm
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 Christmas Island are rapidly increasing during October, increasing by 848°F, from 2,525°F to 3,373°F, over the course of the month.

Growing Degree Days in October in Christmas Island

The average growing degree days accumulated over the course of October, 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 Christmas Island is essentially constant during October, remaining around 6.6 kWh throughout.

The highest average daily incident shortwave solar energy during October is 6.6 kWh on October 21.

Average Daily Incident Shortwave Solar Energy in October in Christmas Island

Average Daily Incident Shortwave Solar Energy in October in Christmas IslandOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhSepNovOct 216.6 kWhOct 216.6 kWhOct 16.5 kWhOct 16.5 kWhOct 316.6 kWhOct 316.6 kWhOct 116.6 kWhOct 116.6 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 Christmas Island are -10.500 deg latitude, 105.667 deg longitude, and 0 ft elevation.

The topography within 2 miles of Christmas Island 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 Christmas Island is covered by trees (57%) and water (30%), within 10 miles by water (87%) and trees (10%), and within 50 miles by water (99%).

This report illustrates the typical weather in Christmas Island, 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 Christmas Island Aerodrome 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.

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