Flying Fish Cove weather in September

In September, Flying Fish Cove sees average daytime highs of 26°C and overnight lows near 25°C, with 22 mm of rain across 4.5 wet days and about 11.9 hours of daylight. It is the 12th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 41% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Flying Fish Cove's 4th-clearest and 3rd-windiest month. For the whole year in context, see Flying Fish Cove's year-round climate.

Daytime high
26°
12th warmest
Overnight low
25°
1st coldest
Rainfall
22 mm
4.5 wet days
Daylight
11 h 54 min
5:53 AM – 5:50 PM
Cloud cover
51%
4th clearest
Wind
28 km/h
3rd windiest
Solar energy
6.17 kWh/m²
Travel score
7.7
out of 10

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.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical September day in Flying Fish Cove reaches about 26°C in the afternoon and slips back to 25°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 26°C. Set against its neighbours, September runs on par with August and on par with October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12625
22625
32625
42625
52625
62625
72625
82625
92625
102625
112625
122625
132625
142625
152625
162625
172625
182625
192625
202625
212625
222625
232625
242625
252625
262625
272625
282625
292625
302625

How September really feels in Flying Fish Cove

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Flying Fish Cove weather by month

How September compares with the rest of the year at a glance. September is the 12th-warmest and 12th-wettest month here — the current month is highlighted below.

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

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 25% of September, with mostly cloudy or overcast conditions the remaining 35%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16931
26931
36931
46931
56832
66832
76832
86832
96832
106733
116634
126634
136535
146535
156436
166535
176436
186436
196436
206436
216436
226337
236337
246436
256436
266337
276337
286337
296337
306337

Chance of precipitation in September

Any precipitation

Flying Fish Cove gets around 22 mm of rain over 4.5 wet days in September, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 15% and peaks near 16% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
116
216
316
416
516
616
716
816
916
1016
1116
1216
1316
1416
1515
1615
1715
1815
1914
2014
2114
2214
2314
2414
2514
2614
2714
2813
2913
3013

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the oppressive band about 56% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1344521
2344521
3344521
4343531
5343531
6243541
7242551
8242560
9241570
10241570
11240580
12240580
13240580
14240580
15240580
16240580
17240580
18240580
19241570
20241570
21241570
22141571
23141571
24141571
25141571
26141571
27141571
28141580
29140590
30140581

Wind in September

Winds average 28 km/h in September.

Across September, daily wind ranges from about 28 km/h on the calmest days to 29 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202530
Wind speed (km/h)Feels
129breezy
228breezy
328breezy
428breezy
528breezy
629breezy
729breezy
829breezy
929breezy
1029breezy
1129breezy
1229breezy
1329breezy
1429breezy
1529breezy
1629breezy
1729breezy
1829breezy
1929breezy
2028breezy
2128breezy
2228breezy
2328breezy
2428breezy
2528breezy
2628breezy
2728breezy
2828breezy
2928breezy
3028breezy

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 48 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over September. Sunrise moves from 6:03 AM to 5:44 AM, and sunset from 5:51 PM to 5:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:035:51
211.86:025:51
311.86:025:51
411.86:015:51
511.86:015:51
611.86:005:51
711.95:595:51
811.95:595:51
911.95:585:50
1011.95:575:50
1111.95:575:50
1211.95:565:50
1311.95:555:50
1411.95:555:50
1511.95:545:50
1611.95:535:50
1712.05:535:50
1812.05:525:50
1912.05:515:50
2012.05:515:50
2112.05:505:50
2212.05:495:49
2312.05:495:49
2412.05:485:49
2512.05:475:49
2612.05:475:49
2712.15:465:49
2812.15:455:49
2912.15:455:49
3012.15:445:49

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.17 kWh/m².

For context, solar energy here swings from a low near 4.67 kWh/m² to a high of 6.53 kWh/m² in October across the year — September's 6.17 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
36.0Bright
46.0Bright
56.0Bright
66.0Intense
76.0Intense
86.0Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.3Intense
216.3Intense
226.3Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.4Intense
296.4Intense
306.4Intense
Planning a trip in September

Hazard calendar for Flying Fish Cove

In seasonPeak

None of Flying Fish Cove's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

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

Is September a good time to visit Flying Fish Cove?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.7
Sightseeing
1st-best month of the year
7.2
Beach & pool
1st-best month of the year

September is one of the better times to visit Flying Fish Cove for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Flying Fish Cove in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Flying Fish Cove sees daytime highs around 26°C and nights near 25°C. Pack sun protection and a windbreaker. Worth having: light clothes. About 5 days see rain.

sun protectiona windbreakerlight clothes

Sea temperature near Flying Fish Cove in September

The nearest coast averages about 26°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

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 in Flying Fish Cove in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

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
Location & terrain

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
September weather 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).