Port Douglas weather in August

In August, Port Douglas sees average daytime highs of 22°C and overnight lows near 19°C, with 47 mm of rain across 9.1 wet days and about 11.4 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 45% of the time in August, and the air most often feels humid.

Daylight stretches from about 11 h 18 min at the start of August to 11 h 42 min by month's end. Set against the rest of the year, August is Port Douglas's 3rd-clearest and 5th-windiest month. For the whole year in context, see Port Douglas's year-round climate.

Daytime high
22°
11th warmest
Overnight low
19°
2nd coldest
Rainfall
47 mm
9.1 wet days
Daylight
11 h 24 min
6:39 AM – 6:05 PM
Cloud cover
46%
3rd clearest
Wind
13 km/h
5th windiest
Solar energy
4.92 kWh/m²
Travel score
7.1
out of 10

Port Douglas is town in the Shire of Douglas, Queensland, Australia.

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 22°C through the month.

A typical August day in Port Douglas reaches about 22°C in the afternoon and slips back to 19°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 24°C. Set against its neighbours, August runs on par with July and about 1°C cooler than September.

15°18°20°23°25°151015202531
Avg high (°C)Avg low (°C)
12218
22218
32218
42218
52218
62218
72219
82219
92219
102219
112219
122219
132219
142219
152219
162219
172219
182219
192219
202219
212219
222319
232319
242319
252319
262319
272319
282319
292319
302320
312320

How August really feels in Port Douglas

Once humidity and wind are folded in, August 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

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

Port Douglas weather by month

How August compares with the rest of the year at a glance. August is the 11th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 25°33623.312.94.2
Feb28° / 25°33222.512.64.0
Mar27° / 24°3222212.14.6
Apr26° / 23°15817.711.65.5
May24° / 21°7313.611.26.4
Jun23° / 20°5711.7116.6
Jul22° / 19°5210.311.16.8
Aug22° / 19°479.111.47.1
Sep24° / 20°287.311.97.6
Oct25° / 22°5710.112.47.1
Nov27° / 23°9414.412.86.1
Dec28° / 24°20318.8135.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 23% of August, with mostly cloudy or overcast conditions the remaining 31%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26832
36832
46733
56733
66733
76733
86733
96832
106733
116733
126733
136832
146832
156832
166832
176832
186832
196832
206832
216832
226832
236931
246931
257030
267030
277129
287129
297129
307228
317327

Chance of precipitation in August

Any precipitation

Port Douglas gets around 47 mm of rain over 9.1 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 29% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
130
230
329
428
528
628
727
827
927
1026
1126
1226
1326
1426
1526
1626
1726
1827
1927
2028
2129
2229
2330
2431
2531
2632
2732
2832
2932
3032
3132

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the humid band about 57% of days. Sticky, muggy-or-worse air turns up on roughly 22% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
161959160
261959160
361959160
461959160
561960150
661960150
761960150
861959160
962058160
1062058160
1162058160
1262057161
1362056171
1462056171
1551957181
1651957181
1751956191
1841857201
1941856211
2041756221
2131657231
2231656241
2321557251
2421456271
2521455281
2621354301
2721353311
2811254321
2911153341
3011151352
3111051362

Wind in August

Winds average 13 km/h in August.

Across August, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 h 18 min at the start of August to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over August. Sunrise moves from 6:47 AM to 6:28 AM, and sunset from 6:02 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.36:476:02
211.36:466:02
311.36:466:02
411.36:456:03
511.36:456:03
611.36:446:03
711.36:446:03
811.36:436:04
911.36:436:04
1011.46:426:04
1111.46:426:04
1211.46:416:05
1311.46:416:05
1411.46:406:05
1511.46:406:05
1611.46:396:05
1711.56:386:06
1811.56:386:06
1911.56:376:06
2011.56:366:06
2111.56:366:06
2211.56:356:07
2311.56:346:07
2411.66:346:07
2511.66:336:07
2611.66:326:07
2711.66:316:07
2811.66:316:08
2911.66:306:08
3011.66:296:08
3111.76:286:08

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.92 kWh/m².

For context, solar energy here swings from a low near 3.94 kWh/m² to a high of 6.7 kWh/m² in November across the year — August's 4.92 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.7Bright
74.7Bright
84.7Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.1Bright
225.1Bright
235.1Bright
245.2Bright
255.2Bright
265.2Bright
275.3Bright
285.3Bright
295.3Bright
305.4Bright
315.4Bright
Planning a trip in August

Hazard calendar for Port Douglas

In seasonPeak

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

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

Port Douglas's monsoon runs December–April, when most of the year's rain falls.

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

Is August a good time to visit Port Douglas?

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

7.1
Sightseeing
2nd-best month of the year
5.1
Beach & pool
7th-best month of the year

August is one of the better times to visit Port Douglas for general sightseeing.

What to pack for Port Douglas in August

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

In August, Port Douglas sees daytime highs around 22°C and nights near 19°C. Worth packing: light clothes, rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

Sea temperature near Port Douglas in August

The nearest coast averages about 24°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 21 km away) is warmest in February at about 29°C and coldest in July near 24°C.

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

22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr27Warm
May26Warm
Jun24Warm
Jul24Refreshing
Aug24Refreshing
Sep25Warm
Oct26Warm
Nov27Warm
Dec29Tropical

UV index in Port Douglas in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Port Douglas peaks around February 12 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 12UV 16Jun 21UV 8
UV index (midday)Level
Jan16Extreme
Feb16Extreme
Mar14Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug10Very high
Sep13Extreme
Oct13Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Port Douglas?

Port Douglas sits at 16.5°S, 145.5°E, 0 m above sea level, in Australia. The nearest listed city is Cairns, 58 km away.

TownsvilleKirwanAirlie BeachMackayMount IsaPort MoresbyDaru

Topography around Port Douglas

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

Within 3 km, the terrain around Port Douglas has only modest variations in elevation — a maximum elevation change of 75 m around an average of 2 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,038 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,372 m.

The land around Port Douglas is covered by water (69%) and mangroves (21%) within 3 km, water (55%) and trees (32%) within 16 km, and trees (45%) and water (41%) within 80 km.

3 km
75 m
16 km
1,038 m
80 km
1,372 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwatermangroves
August weather nearby: Cairns 58 km · Townsville 340 km · Kirwan 341 km · Airlie Beach 543 km · Mackay 649 km · Mount Isa 786 km · Port Moresby 800 km · Daru 859 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 Port Douglas (-16.4838°, 145.4673°, elevation 0 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).