Cairns weather in January

In January, Cairns sees average daytime highs of 28°C and overnight lows near 23°C, with 246 mm of rain across 21.3 wet days and about 12.9 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 17% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 13 hours at the start of January to 12 h 48 min by month's end. Set against the rest of the year, January is Cairns's 11th-clearest and 11th-windiest month. For the whole year in context, see Cairns's year-round climate.

Daytime high
28°
1st warmest
Overnight low
23°
11th coldest
Rainfall
246 mm
21.3 wet days
Daylight
12 h 54 min
5:59 AM – 6:53 PM
Cloud cover
72%
11th clearest
Wind
9 km/h
11th windiest
Solar energy
5.97 kWh/m²
Travel score
4.2
out of 10

Cairns is city in Queensland, Australia.

Density
314/km²
people per km²
Founded
1876

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical January day in Cairns reaches about 28°C in the afternoon and slips back to 23°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, January runs on par with December and on par with February.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12823
22823
32823
42823
52823
62823
72823
82823
92823
102823
112823
122823
132823
142823
152823
162823
172823
182823
192823
202824
212824
222824
232824
242824
252924
262924
272924
282924
292924
302924
312924

How January really feels in Cairns

Once humidity and wind are folded in, January averages 4 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
4
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Cairns weather by month

How January compares with the rest of the year at a glance. January is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 23°24621.312.94.2
Feb28° / 24°25420.712.64.0
Mar28° / 23°20617.912.15.2
Apr26° / 21°9412.711.66.3
May24° / 20°419.511.27.1
Jun23° / 18°277117.4
Jul22° / 17°275.911.17.5
Aug23° / 17°245.511.47.7
Sep24° / 18°144.111.98.2
Oct26° / 20°326.512.47.6
Nov27° / 22°5710.412.86.6
Dec28° / 23°14216.1135.2

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 17% of January, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23961
33961
43961
53862
63862
73961
83862
93763
103565
113565
123466
133466
143268
153169
163070
173070
182971
192971
203070
213070
223070
233070
243070
253070
263268
273367
283367
293367
303367
313466

Chance of precipitation in January

Any precipitation

Cairns gets around 246 mm of rain over 21.3 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 69% and peaks near 73% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
163
263
363
464
564
664
764
865
966
1066
1167
1268
1368
1469
1570
1670
1771
1871
1972
2072
2173
2273
2373
2473
2573
2673
2773
2873
2973
3073
3173

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the oppressive band about 76% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
119738
218748
317758
417758
517758
617758
716768
816768
916768
1015778
1115778
1215778
1314788
1414788
1513798
1613798
1713789
18127810
19127810
20117811
21117712
22107713
2397714
2497516
2587517
2687418
2777419
2877320
2977320
3077221
3177221

Wind in January

Winds average 9 km/h in January.

Across January, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 hours at the start of January to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over January. Sunrise moves from 5:50 AM to 6:07 AM, and sunset from 6:50 PM to 6:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:506:50
213.05:516:50
313.05:516:51
413.05:526:51
513.05:536:51
613.05:536:51
713.05:546:52
813.05:546:52
913.05:556:52
1013.05:556:52
1112.95:566:53
1212.95:576:53
1312.95:576:53
1412.95:586:53
1512.95:586:53
1612.95:596:53
1712.96:006:54
1812.96:006:54
1912.96:016:54
2012.96:016:54
2112.96:026:54
2212.96:026:54
2312.86:036:54
2412.86:046:54
2512.86:046:54
2612.86:056:54
2712.86:056:54
2812.86:066:54
2912.86:066:53
3012.86:076:53
3112.86:076:53

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.97 kWh/m².

For context, solar energy here swings from a low near 3.82 kWh/m² to a high of 6.68 kWh/m² in November across the year — January's 5.97 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.2Intense
56.2Intense
66.2Intense
76.1Intense
86.1Intense
96.0Intense
106.0Intense
116.0Bright
125.9Bright
135.9Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in January

Hazard calendar for Cairns

In seasonPeak

In January, Cairns sits inside its cyclone and monsoon season. The full year is below, with each hazard's peak months called out.

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

Cairns's monsoon runs December–March, when most of the year's rain falls.

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

Is January a good time to visit Cairns?

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

4.2
Sightseeing
11th-best month of the year
5.0
Beach & pool
11th-best month of the year

January is a reasonable time to visit Cairns for sightseeing.

What to pack for Cairns in January

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

In January, Cairns sees daytime highs around 28°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

Sea temperature near Cairns in January

The nearest coast averages about 29°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 13 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
Mar28Tropical
Apr27Warm
May26Warm
Jun24Warm
Jul24Refreshing
Aug24Refreshing
Sep25Warm
Oct26Warm
Nov27Warm
Dec29Tropical

UV index in Cairns in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 16 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cairns peaks around February 11 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 11UV 16Jun 21UV 8
UV index (midday)Level
Jan16Extreme
Feb16Extreme
Mar14Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug10Very high
Sep13Extreme
Oct13Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Cairns?

Cairns sits at 16.9°S, 145.8°E, 7 m above sea level, in Australia. The nearest listed city is Port Douglas, 58 km away.

TownsvilleKirwanAirlie BeachMackayMount IsaPort MoresbyRockhampton

Topography around Cairns

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

Within 3 km, the terrain around Cairns has only modest variations in elevation — a maximum elevation change of 39 m around an average of 5 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,180 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,561 m.

The land around Cairns is covered by artificial surfaces (44%) and water (24%) within 3 km, trees (50%) and water (26%) within 16 km, and water (43%) and trees (40%) within 80 km.

3 km
39 m
16 km
1,180 m
80 km
1,561 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
January weather nearby: Port Douglas 58 km · Townsville 283 km · Kirwan 283 km · Airlie Beach 485 km · Mackay 591 km · Mount Isa 783 km · Port Moresby 841 km · Rockhampton 872 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 Cairns (-16.9237°, 145.7661°, elevation 7 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).