Climate and average weather in Flying Fish Cove

In Flying Fish Cove, the weather is muggy, hot, wet, and partly cloudy and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around March.

Best: late June to late November

Over the course of the year, the temperature in Flying Fish Cove typically varies from 25°C to 28°C, and is rarely below 24°C or above 29°C. April is the hottest month of the year, while September is the coldest.

Based on the travel score, the best time of year to visit Flying Fish Cove for warm-weather activities is from late June to late November.

Hottest
Apr
28°
Coldest
Sep
25°
Wettest
Mar
217 mm
Driest
Sep
22 mm
Rain / yr
1300 mm
158 wet days
Daylight
11.4–12.6 h
shortest–longest
Elevation
135 m
10.4°S
Clearest
Aug
48% cloud

Flying Fish Cove is capital city and main settlement of Australia's Christmas Island.

Founded
1888

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Flying Fish Cove weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around late June to late November.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Flying Fish Cove, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Flying Fish Cove stay fairly even through the year, without a distinct hot or cool season. The warmest month is April, with an average high of 28°C and low of 27°C; the coolest is September, with an average low of 25°C and high of 26°C.

Days typically run about 1°C warmer than nights year-round.

18°20°22°24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2826
Feb2826
Mar2826
Apr2827
May2827
Jun2726
Jul2625
Aug2625
Sep2625
Oct2625
Nov2726
Dec2726

How hot and cold Flying Fish Cove really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the hottest afternoons, once humidity is folded in, Flying Fish Cove feels like about 32°C (around April 19). About 47 days a year carry some heat stress, peaking in April.

20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan30282626
Feb31282626
Mar32282626
Apr32282727
May31282727
Jun30272626
Jul26262525
Aug26262525
Sep26262525
Oct26262525
Nov27272626
Dec30272626

Average hourly temperature in Flying Fish Cove

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on April afternoons, near 28°C, and coldest before dawn in September, near 25°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Flying Fish Cove weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 26°18618.312.55.1
Feb28° / 26°20219.512.34.6
Mar28° / 26°21721.712.14.6
Apr28° / 27°16720.111.84.6
May28° / 27°9315.711.55.6
Jun27° / 26°8713.211.46.1
Jul26° / 25°5210.811.56.7
Aug26° / 25°236.411.77.5
Sep26° / 25°224.511.97.7
Oct26° / 25°415.212.27.4
Nov27° / 26°768.812.56.6
Dec27° / 26°13313.512.65.8

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Flying Fish Cove gets about 1300 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 6.2 months, from around Dec 12 to Jun 19, peaking in March at about 74% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Oct 5.

March is the wettest month by volume, with 217 mm over about 22 wet days; September is the driest, with 22 mm.

0%10%20%30%40%50%60%70%80%JanFebMarAprMayJunJulAugSepOctNovDecwetterdriermostly drysome rainoften wetvery wetMar 24 · 74%Oct 5 · 13%
Rain on a day (%)Rain days
Jan5818
Feb7020
Mar7122
Apr6620
May5116
Jun4413
Jul3511
Aug216
Sep155
Oct175
Nov299
Dec4414

Monthly rainfall

Over a full year, Flying Fish Cove collects about 1300 mm of rain across 158 wet days — roughly 108 mm in an average month.

It doesn’t fall evenly. March is the wettest month with 217 mm, while September is the driest at just 22 mm. The three wettest months alone bring about 47% of the year’s total.

050100150200250JanFebMarAprMayJunJulAugSepOctNovDec18620221716793875223224176133
Rainfall (mm)Rain days
Jan18618
Feb20220
Mar21722
Apr16720
May9316
Jun8713
Jul5211
Aug236
Sep225
Oct415
Nov769
Dec13314

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Flying Fish Cove, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around April 26 and lasts for 6.2 months, ending around October 30. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 70% of the time on average.

The cloudier part of the year begins around October 31 and lasts for 5.8 months, ending around April 25. The cloudiest month is February, when it is overcast or mostly cloudy 67% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecAug 9 · 72%Feb 12 · 32%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan3763
Feb3367
Mar4258
Apr4654
May6436
Jun6337
Jul6832
Aug7030
Sep6535
Oct5842
Nov4555
Dec3862

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around January 1, brings about 12 h 36 min of light; the shortest, around May 29, only 11 h 24 min — a swing of roughly 1 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.55:506:23
Feb12.36:026:22
Mar12.16:056:09
Apr11.86:045:51
May11.56:085:39
Jun11.46:165:39
Jul11.56:205:46
Aug11.76:125:51
Sep11.95:535:50
Oct12.25:355:49
Nov12.55:285:57
Dec12.65:356:12

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Flying Fish Cove averages about 10 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 4 and 15 days.

The sunnier stretch runs 6.2 months, from around Apr 20 to Oct 26. The sunniest month is August, with roughly 14 sunny days (mixed).

The greyest month is January, down near 6 sunny days — about 57% fewer than the August peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightAug 1015 daysJan 294 days
Sunny daysSky
Jan6Gloomy
Feb5Gloomy
Mar7Gloomy
Apr9Mixed
May14Mixed
Jun13Mixed
Jul14Mixed
Aug14Mixed
Sep12Mixed
Oct11Mixed
Nov8Gloomy
Dec6Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

Flying Fish Cove is humid all year round — on a typical day the air feels at least humid, and there is no real dry season to wait for.

The stickiest month is January, when it feels muggy, oppressive or miserable about 100% of the time. Even in January, the mildest month, the air is dry or comfortable only 0% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecmiserableoppressivemuggy
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan057718
Feb026830
Mar015842
Apr014653
May025939
Jun077518
Jul125713
Aug341541
Sep241561
Oct023743
Nov016777
Dec0127711

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Flying Fish Cove is typically breezy, near 23 km/h, and varies a lot with the seasons.

The windier part of the year lasts 6.4 months, from around May 2 to Nov 12. The windiest month is August, averaging about 29 km/h (windy).

The calmer part of the year runs from around Nov 13 to May 1, with January the calmest month at about 17 km/h.

05101520253035JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezebreezywindyAug 11 · 30 km/hJan 1 · 16 km/h
Wind speed (km/h)Feels
Jan17light breeze
Feb18light breeze
Mar17light breeze
Apr20light breeze
May24breezy
Jun26breezy
Jul29breezy
Aug29windy
Sep28breezy
Oct26breezy
Nov22breezy
Dec18light breeze

Hazard calendar for Flying Fish Cove

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

Flying Fish Cove sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Flying Fish Cove's rainy season runs December–April, when most of the year's rain falls.

Cyclone
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Best time to visit Flying Fish Cove

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Flying Fish Cove throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late November, Flying Fish Cove is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Flying Fish Cove for general outdoor tourist activities is from late June to late November, with a peak score in the second week of September.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationSep 13 · 7.7

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan5.1fair
Feb4.6fair
Mar4.6fair
Apr4.6fair
May5.6good
Jun6.1good
Jul6.7good
Aug7.4good
Sep7.7ideal
Oct7.4good
Nov6.6good
Dec5.8good

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Flying Fish Cove for hot-weather activities is from early May to late December, with a peak score in the first week of October.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationOct 7 · 7.3

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Flying Fish Cove, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

Flying Fish Cove packs about the same all year — highs hold near 28°C. Across the year the things worth having are light clothes, rain gear, sun protection and a windbreaker.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In April, Flying Fish Cove sees daytime highs around 28°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

Sea temperature near Flying Fish Cove

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea offshore is warmest in April at about 29°C and coldest in September near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun28Tropical
Jul27Warm
Aug26Warm
Sep26Warm
Oct27Warm
Nov28Warm
Dec28Tropical

UV index (midday) in Flying Fish Cove by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Flying Fish Cove peaks around February 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 22UV 15Jun 17UV 9
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun9Very high
Jul10Extreme
Aug12Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec13Extreme

Average hourly UV index in Flying Fish Cove

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in February the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 7 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan8.56.5
Feb8.57
Mar86.5
Apr86
May75
Jun74.5
Jul75
Aug7.55.5
Sep86
Oct86
Nov86
Dec8.56.5
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Flying Fish Cove is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Flying Fish Cove banks about 5,998 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around April.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan520
Feb473
Mar530
Apr519
May533
Jun500
Jul492
Aug479
Sep460
Oct489
Nov490
Dec515

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Flying Fish Cove receives about 5.7 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.7 and 6.6 kWh/m².

The brighter stretch of the year lasts 6.9 months, from around Aug 24 to Mar 21. The brightest month is October, averaging about 6.5 kWh/m² (intense).

The dimmest month is June, down near 4.7 kWh/m² — roughly 28% less than the October peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseOct 166.6 kWhJun 154.7 kWh
Solar energy (kWh/m²)Level
Jan6.0Intense
Feb5.9Bright
Mar5.8Bright
Apr5.4Bright
May5.1Bright
Jun4.7Bright
Jul4.9Bright
Aug5.6Bright
Sep6.2Intense
Oct6.5Intense
Nov6.4Intense
Dec6.2Intense

Where is Flying Fish Cove?

Flying Fish Cove sits at 10.4°S, 105.7°E, 135 m above sea level, in Christmas Island. The nearest listed city is Pelabuhanratu, 394 km away.

Topography around Flying Fish Cove

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Flying Fish Cove.

Within 3 km, the terrain around Flying Fish Cove has significant variations in elevation — a maximum elevation change of 332 m around an average of 95 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 366 m; within 80 km, significant variations in elevation — a maximum elevation change of 361 m.

The land around Flying Fish Cove is covered by water (54%) and trees (37%) within 3 km, water (84%) within 16 km, and water (97%) within 80 km.

3 km
332 m
16 km
366 m
80 km
361 m
treesgrasslandartificial surfacesbare terrainwater
Nearby: Pelabuhanratu 394 km · Banjar 407 km · Sukabumi 413 km · Leuwiliang 419 km · Cicurug 423 km · Soreang 428 km · Banjaran 430 km · Garut 431 km

Christmas Island travel facts

Religion
Muslim 19%Buddhist 18%none 15%Roman Catholic 9%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Flying Fish Cove (-10.4217°, 105.6791°, elevation 135 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).