Portadown weather in January

In January, Portadown sees average daytime highs of 7°C and overnight lows near 3°C, with 71 mm of precipitation across 13.7 wet days and about 7.6 hours of daylight. It is the 12th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 7°C through the month. The sky is clear or mostly clear about 9% of the time in January, and the air most often feels dry.

Daylight stretches from about 7 h 06 min at the start of January to 8 h 24 min by month's end. Set against the rest of the year, January is Portadown's 5th-clearest and 1st-windiest month. For the whole year in context, see Portadown's year-round climate.

Daytime high
12th warmest
Overnight low
2nd coldest
Precipitation
71 mm
13.7 wet days
Daylight
7 h 36 min
8:47 AM – 4:23 PM
Cloud cover
77%
5th clearest
Wind
16 km/h
1st windiest
Solar energy
0.61 kWh/m²
Travel score
0.9
out of 10

Portadown is town in County Armagh, Northern Ireland, UK.

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 7°C through the month.

A typical January day in Portadown reaches about 7°C in the afternoon and slips back to 3°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 4°C and 11°C. Set against its neighbours, January runs on par with December and on par with February.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
173
273
373
473
573
673
773
873
973
1073
1173
1273
1373
1473
1573
1673
1773
1873
1973
2073
2173
2273
2373
2473
2573
2673
2773
2873
2973
3073
3173

How January really feels in Portadown

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.

Portadown weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 7113.71.17.60.9
Feb / 5911.919.31.2
Mar10° / 6013.10.711.51.8
Apr12° / 6413.40.213.72.8
May15° / 6813.9015.73.8
Jun17° / 10°7413.1016.94.8
Jul19° / 12°7614.1016.45.1
Aug18° / 12°8114.3014.75.1
Sep16° / 10°6612.2012.54.5
Oct13° / 7713.1010.23.2
Nov10° / 7413.10.28.21.9
Dec / 7512.90.87.11.1

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12575
22575
32575
42575
52674
62674
72575
82476
92476
102575
112575
122575
132476
142377
152377
162377
172278
182278
192278
202179
212179
222179
232179
242179
252179
262179
272179
282179
292278
302278
312278

Chance of precipitation in January

Any precipitationSnow

Portadown gets around 71 mm of rain and snow over 13.7 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 44% and peaks near 45% on the wettest days, and about 1 day brings snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1453
2453
3453
4453
5453
6453
7454
8454
9454
10454
11454
12455
13445
14445
15445
16445
17445
18445
19445
20444
21444
22444
23444
24444
25444
26443
27443
28443
29443
30443
31453

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 16 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 7 h 06 min at the start of January to 8 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over January. Sunrise moves from 8:55 AM to 8:28 AM, and sunset from 4:03 PM to 4:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
17.18:554:03
27.18:554:04
37.28:554:05
47.28:554:06
57.28:544:07
67.28:544:08
77.38:544:10
87.38:534:11
97.38:534:12
107.48:524:14
117.48:514:15
127.48:514:17
137.58:504:18
147.58:494:20
157.68:484:21
167.68:474:23
177.68:464:25
187.78:454:26
197.78:444:28
207.88:434:30
217.88:424:32
227.98:414:33
237.98:394:35
248.08:384:37
258.08:374:39
268.18:354:41
278.18:344:43
288.28:324:45
298.38:314:46
308.38:294:48
318.48:284:50

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 0.61 kWh/m².

For context, solar energy here swings from a low near 0.46 kWh/m² to a high of 4.79 kWh/m² in May across the year — January's 0.61 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.5Dim
20.5Dim
30.5Dim
40.5Dim
50.5Dim
60.5Dim
70.5Dim
80.5Dim
90.5Dim
100.5Dim
110.6Dim
120.6Dim
130.6Dim
140.6Dim
150.6Dim
160.6Dim
170.6Dim
180.6Dim
190.6Dim
200.7Dim
210.7Dim
220.7Dim
230.7Dim
240.7Dim
250.7Dim
260.8Dim
270.8Dim
280.8Dim
290.8Dim
300.8Dim
310.9Dim
Planning a trip in January

Is January a good time to visit Portadown?

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

0.9
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 Portadown.

What to pack for Portadown in January

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

In January, Portadown sees daytime highs around 7°C and nights near 3°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 14 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Portadown in January

The nearest coast averages about 9°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 50 km away) is warmest in August at about 15°C and coldest in March near 8°C.

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

10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan9Bracing
Feb8Bracing
Mar8Bracing
Apr9Bracing
May11Bracing
Jun13Bracing
Jul14Bracing
Aug15Bracing
Sep14Bracing
Oct13Bracing
Nov12Bracing
Dec11Bracing

UV index in Portadown 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 Portadown peaks around July 19 at about 5 (high) — a little sun protection helps at midday. It bottoms out near January 1 at about 0 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 19UV 5Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Moderate
Apr3Moderate
May5High
Jun5High
Jul5High
Aug5High
Sep3Moderate
Oct2Low
Nov1Low
Dec0Low
Location & terrain

Where is Portadown?

Portadown sits at 54.4°N, 6.4°W, 22 m above sea level, in United Kingdom. The nearest listed city is Craigavon, 5.0 km away.

Topography around Portadown

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

Within 3 km, the terrain around Portadown has only modest variations in elevation — a maximum elevation change of 70 m around an average of 26 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 244 m; within 80 km, large variations in elevation — a maximum elevation change of 848 m.

The land around Portadown is covered by grassland (56%) and artificial surfaces (21%) within 3 km, grassland (65%) within 16 km, and grassland (66%) and water (24%) within 80 km.

3 km
70 m
16 km
244 m
80 km
848 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Craigavon 5.0 km · Banbridge 13 km · Newry 28 km · Lisburn 29 km · Antrim 36 km · Belfast 39 km · Castlereagh 40 km · Newtownabbey 43 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 Portadown (54.423°, -6.4443°, elevation 22 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).