Perth weather in January

In January, Perth sees average daytime highs of 5°C and overnight lows near 1°C, with 100 mm of precipitation across 15.5 wet days and about 7.3 hours of daylight. It is the 12th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 5°C through the month. The sky is clear or mostly clear about 12% of the time in January, and the air most often feels dry.

Daylight stretches from about 6 h 42 min at the start of January to 8 h 06 min by month's end. Set against the rest of the year, January is Perth's 10th-clearest and 3rd-windiest month. For the whole year in context, see Perth's year-round climate.

Daytime high
12th warmest
Overnight low
2nd coldest
Precipitation
100 mm
15.5 wet days
Daylight
7 h 12 min
8:47 AM – 3:59 PM
Cloud cover
77%
10th clearest
Wind
13 km/h
3rd windiest
Solar energy
0.49 kWh/m²
Travel score
0.2
out of 10

Perth is city in Perth and Kinross, Scotland, United Kingdom.

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 5°C through the month.

A typical January day in Perth reaches about 5°C in the afternoon and slips back to 1°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 2°C and 10°C. Set against its neighbours, January runs on par with December and about 1°C cooler than February.

-5°10°151015202531
Avg high (°C)Avg low (°C)
151
251
351
451
551
651
751
851
951
1051
1161
1261
1361
1461
1561
1661
1761
1861
1961
2061
2161
2261
2361
2461
2561
2661
2761
2861
2961
3061
3161

How January really feels in Perth

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 31 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
31
wind chill below the day's low

The story in January is cold — wind chill drags the overnight "feels like" below the raw low.

Perth weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 10015.55.77.30.2
Feb / 7612.34.59.10.5
Mar / 7513.73.611.41.3
Apr11° / 6412.61.213.92.4
May14° / 7112.80.116.13.6
Jun16° / 7413.3017.34.4
Jul18° / 11°8214.2016.85.1
Aug18° / 10°8713.8014.95.0
Sep15° / 6911.7012.54.2
Oct12° / 10113.80.110.12.7
Nov / 9014.21.17.91.2
Dec / 9113.236.70.3

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 12% of January, with mostly cloudy or overcast conditions the remaining 76%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12575
22575
32575
42575
52575
62575
72674
82674
92674
102674
112674
122674
132674
142575
152575
162575
172377
182476
192476
202377
212278
222278
232377
242278
252278
262278
272377
282377
292377
302377
312476

Chance of precipitation in January

Any precipitationSnow

Perth gets around 100 mm of rain and snow over 15.5 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 50% and peaks near 53% on the wettest days, and about 6 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
14716
24816
34917
45017
55018
65118
75218
85219
95319
105319
115319
125319
135318
145218
155218
165218
175218
185118
195018
205018
214918
224817
234717
244717
254717
264618
274618
284618
294618
304618
314619

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 13 km/h in January.

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

05101520151015202531
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
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 6 h 42 min at the start of January to 8 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 84 minutes over January. Sunrise moves from 8:57 AM to 8:25 AM, and sunset from 3:37 PM to 4:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
16.78:573:37
26.78:563:38
36.78:563:40
46.88:563:41
56.88:553:42
66.88:553:43
76.88:543:45
86.98:543:46
96.98:533:48
106.98:523:49
117.08:513:51
127.08:513:52
137.18:503:54
147.18:493:56
157.28:483:58
167.28:473:59
177.38:464:01
187.38:444:03
197.48:434:05
207.48:424:07
217.58:414:09
227.58:394:11
237.68:384:13
247.68:364:15
257.78:354:17
267.88:334:19
277.88:324:21
287.98:304:23
297.98:284:25
308.08:274:27
318.18:254:29

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 0.49 kWh/m².

For context, solar energy here swings from a low near 0.34 kWh/m² to a high of 4.71 kWh/m² in May across the year — January's 0.49 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.3Dim
20.4Dim
30.4Dim
40.4Dim
50.4Dim
60.4Dim
70.4Dim
80.4Dim
90.4Dim
100.4Dim
110.4Dim
120.4Dim
130.4Dim
140.5Dim
150.5Dim
160.5Dim
170.5Dim
180.5Dim
190.5Dim
200.5Dim
210.6Dim
220.6Dim
230.6Dim
240.6Dim
250.6Dim
260.6Dim
270.7Dim
280.7Dim
290.7Dim
300.7Dim
310.7Dim
Planning a trip in January

Is January a good time to visit Perth?

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

0.2
Sightseeing
12th-best month of the year
0.0
Beach & pool
7th-best month of the year

January is a weaker month for outdoor sightseeing in Perth.

What to pack for Perth in January

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

In January, Perth sees daytime highs around 5°C and nights near 1°C. Pack a warm layer and rain gear. Worth having: a heavy coat. About 16 days see rain.

a warm layerrain geara heavy coat

Sea temperature near Perth in January

The nearest coast averages about 7°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 36 km away) is warmest in August at about 14°C and coldest in February near 6°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

5°10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan7Bracing
Feb6Bracing
Mar6Bracing
Apr7Bracing
May10Bracing
Jun12Bracing
Jul14Bracing
Aug14Bracing
Sep13Bracing
Oct12Bracing
Nov10Bracing
Dec8Bracing

UV index in Perth in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 0. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Perth peaks around June 23 at about 5 (high) — a little sun protection helps at midday. It bottoms out near December 19 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 23UV 5Dec 19UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Moderate
Apr3Moderate
May5Moderate
Jun5High
Jul5High
Aug5Moderate
Sep3Moderate
Oct1Low
Nov1Low
Dec0Low
Location & terrain

Where is Perth?

Perth sits at 56.4°N, 3.4°W, 10 m above sea level, in United Kingdom. The nearest listed city is Glenrothes, 27 km away.

Topography around Perth

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

Within 3 km, the terrain around Perth has only modest variations in elevation — a maximum elevation change of 222 m around an average of 54 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 415 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,320 m.

The land around Perth is covered by trees (32%), grassland (29%) and artificial surfaces (24%) within 3 km, cropland (37%), grassland (36%) and trees (21%) within 16 km, and grassland (55%) within 80 km.

3 km
222 m
16 km
415 m
80 km
1,320 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Glenrothes 27 km · Dundee 29 km · Kirkcaldy 35 km · Dunfermline 36 km · Alloa 38 km · Saint Andrews 39 km · Stirling 44 km · Grangemouth 46 km

United Kingdom travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type D / G / M
230 V · 50 Hz
Prices
≈ 89% of US
price level, 2025
GDP per capita
$57,602
2025
Happiness
6.7 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.1
per 100k, 2021
Road deaths
3.2
per 100k/yr, 2019
Income group
High
World Bank
Religion
Christian 60%none 26%Muslim 4%other 2%

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 Perth (56.3952°, -3.4314°, elevation 10 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. 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).