Dianella weather in October

In October, Dianella sees average daytime highs of 21°C and overnight lows near 13°C, with 27 mm of rain across 4.7 wet days and about 12.8 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 23°C by the end. The sky is clear or mostly clear about 49% of the time in October, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of October to 13 h 12 min by month's end. Set against the rest of the year, October is Dianella's 6th-clearest and 6th-windiest month. For the whole year in context, see Dianella's year-round climate.

Daytime high
21°
7th warmest
Overnight low
13°
5th coldest
Rainfall
27 mm
4.7 wet days
Daylight
12 h 48 min
5:38 AM – 6:25 PM
Cloud cover
40%
6th clearest
Wind
18 km/h
6th windiest
Solar energy
6.53 kWh/m²
Travel score
7.6
out of 10

Dianella is suburb of Perth, Western Australia.

Density
2,238/km²
people per km²

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 20°C in the first days to 23°C by the end.

A typical October day in Dianella reaches about 21°C in the afternoon and slips back to 13°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 26°C. Set against its neighbours, October runs about 3°C warmer than September and about 3°C cooler than November.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12012
22012
32012
42012
52012
62013
72013
82013
92013
102113
112113
122113
132113
142113
152113
162113
172113
182214
192214
202214
212214
222214
232214
242214
252214
262214
272214
282214
292314
302314
312314

Dianella weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 19°171.813.87.4
Feb29° / 20°171.513.27.2
Mar27° / 19°182.312.27.8
Apr24° / 16°244.111.28.1
May21° / 14°677.810.47.1
Jun18° / 12°9810.7106.1
Jul17° / 11°10212.510.15.5
Aug18° / 11°8911.110.85.8
Sep19° / 12°558.511.86.5
Oct21° / 13°274.712.87.6
Nov24° / 16°193.713.68.4
Dec27° / 18°91.6148.4

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 21% of October, with mostly cloudy or overcast conditions the remaining 30%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16634
26634
36733
46832
56832
66931
76931
86931
97030
107030
117030
127030
137030
147030
157030
166931
176931
186931
197030
207030
217030
226931
237030
247030
257030
267129
277129
287228
297228
307327
317327

Chance of precipitation in October

Any precipitation

Dianella gets around 27 mm of rain over 4.7 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 16% and peaks near 21% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
121
220
320
420
519
619
718
818
917
1017
1116
1216
1316
1416
1516
1615
1715
1815
1915
2015
2114
2214
2314
2414
2514
2614
2714
2814
2914
3014
3114

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 79% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
189110
288120
386131
486131
585141
685141
784151
884151
983161
1083161
1182171
1281172
1381172
1480182
1580182
1678193
1778193
1877203
1977203
2076213
2176213
2276213
2374224
2474224
2574224
2674224
2774224
2873234
2973234
3073234
3173234

Wind in October

Winds average 18 km/h in October.

Across October, daily wind ranges from about 17 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2419light breeze
2519light breeze
2619light breeze
2719light breeze
2819light breeze
2919light breeze
3019light breeze
3119light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 18 min at the start of October to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over October. Sunrise moves from 5:56 AM to 5:23 AM, and sunset from 6:15 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:566:15
212.35:556:15
312.45:546:16
412.45:526:17
512.45:516:17
612.55:506:18
712.55:486:19
812.55:476:20
912.65:466:20
1012.65:456:21
1112.65:446:22
1212.75:426:22
1312.75:416:23
1412.75:406:24
1512.85:396:25
1612.85:386:25
1712.85:376:26
1812.95:356:27
1912.95:346:28
2012.95:336:29
2113.05:326:29
2213.05:316:30
2313.05:306:31
2413.05:296:32
2513.15:286:33
2613.15:276:33
2713.15:266:34
2813.25:256:35
2913.25:246:36
3013.25:236:37
3113.25:236:38

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 6.53 kWh/m².

For context, solar energy here swings from a low near 2.58 kWh/m² to a high of 8.43 kWh/m² in December across the year — October's 6.53 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.8Bright
45.8Bright
55.9Bright
66.0Bright
76.0Intense
86.1Intense
96.2Intense
106.2Intense
116.3Intense
126.3Intense
136.4Intense
146.4Intense
156.5Intense
166.5Intense
176.6Intense
186.6Intense
196.7Intense
206.7Intense
216.8Intense
226.8Intense
236.9Intense
246.9Intense
257.0Intense
267.0Intense
277.0Intense
287.1Intense
297.1Intense
307.2Intense
317.2Intense
Planning a trip in October

Hazard calendar for Dianella

In seasonPeak

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

Dianella sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Dianella's rainy season runs May–September, when most of the year's rain falls.

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

Is October a good time to visit Dianella?

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

7.6
Sightseeing
5th-best month of the year
4.8
Beach & pool
7th-best month of the year

October is one of the better times to visit Dianella for general sightseeing.

What to pack for Dianella in October

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

In October, Dianella sees daytime highs around 21°C and nights near 13°C. Pack sun protection. About 5 days see rain.

sun protection

Sea temperature near Dianella in October

The nearest coast averages about 19°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 23 km away) is warmest in February at about 22°C and coldest in September near 19°C.

It's comfortable for a long swim from Nov 22 to Jul 12 — about 7.7 months when the water holds above 20°C.

18°20°22°24°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan22Refreshing
Feb22Refreshing
Mar22Refreshing
Apr22Refreshing
May22Refreshing
Jun21Refreshing
Jul20Cool
Aug19Cool
Sep19Cool
Oct19Cool
Nov20Cool
Dec21Refreshing

UV index in Dianella in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Dianella peaks around December 23 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeModerateVery highExtremeDec 23UV 13Jun 21UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar11Extreme
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug5Moderate
Sep8Very high
Oct9Very high
Nov10Extreme
Dec13Extreme
Location & terrain

Where is Dianella?

Dianella sits at 31.9°S, 115.9°E, 30 m above sea level, in Australia. The nearest listed city is Morley, 4.0 km away.

Topography around Dianella

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

Within 3 km, the terrain around Dianella has only modest variations in elevation — a maximum elevation change of 64 m around an average of 42 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 105 m; within 80 km, significant variations in elevation — a maximum elevation change of 567 m.

The land around Dianella is covered by artificial surfaces (77%) within 3 km, artificial surfaces (49%) within 16 km, and trees (40%) and water (31%) within 80 km.

3 km
64 m
16 km
105 m
80 km
567 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Morley 4.0 km · Ballajura 6.0 km · Perth 7.0 km · Landsdale 9.0 km · Scarborough 10 km · Duncraig 11 km · Ellenbrook 16 km · Willetton 18 km

Australia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type I
230 V · 50 Hz
Prices
≈ 90% of US
price level, 2025
GDP per capita
$65,130
2025
Happiness
6.9 / 10
World Happiness, 2025
Homicide rate
0.9
per 100k, 2023
Road deaths
4.9
per 100k/yr, 2019
Income group
High
World Bank
Religion
none 38%Roman Catholic 20%Protestant 18%other Christian 4%

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 Dianella (-31.8882°, 115.8719°, elevation 30 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).