Climate and average weather in Craigavon

In Craigavon, the summers are mild, showery, and mostly cloudy and the winters are cold, snowy, and mostly cloudy.

Best: late May to late September

Over the course of the year, the temperature in Craigavon typically varies from 3°C to 19°C, and is rarely below -1°C or above 23°C. July is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Craigavon for warm-weather activities is from late May to late September.

Hottest
Jul
19°
Coldest
Jan
Wettest
Aug
81 mm
Driest
Feb
59 mm
Rain / yr
843 mm
159 wet days
Daylight
7.0–17.0 h
shortest–longest
Elevation
34 m
54.4°N
Clearest
May
74% cloud

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

Founded
1965

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

Craigavon weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around late May to late September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Craigavon, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 3.7 months, from May 28 to September 18, with daily high temperatures above 16°C. The hottest month of the year in Craigavon is July, with an average high of 19°C and low of 12°C.

The cool season lasts 3.8 months, from November 18 to March 14, with daily high temperatures below 9°C. The coldest month of the year in Craigavon is January, with an average low of 3°C and high of 7°C.

Days typically run about 6°C warmer than nights year-round.

-5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan73
Feb83
Mar104
Apr125
May158
Jun1710
Jul1912
Aug1812
Sep1610
Oct138
Nov105
Dec83

How hot and cold Craigavon really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the coldest nights, wind chill pulls the feels-like down to about -1°C (around January 4), with roughly 96 freezing days a year (feels-like at or below 0°C), worst in January.

-5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan77-13
Feb88-13
Mar91004
Apr121225
May151558
Jun1717910
Jul18191212
Aug18181212
Sep1616910
Oct131358
Nov101025
Dec88-13

Average hourly temperature in Craigavon

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on July afternoons, near 19°C, and coldest before dawn in January, near C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Craigavon weather by month

Every month at a glance. Click a month for its detailed page.

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

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Craigavon gets about 843 mm of precipitation a year. On a typical day the chance of rain is often wet, and that barely changes with the seasons — rain is spread fairly evenly through the year.

August is the wettest month by volume, with 81 mm over about 14 wet days; February is the driest, with 59 mm. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%60%JanFebMarAprMayJunJulAugSepOctNovDecmostly drysome rainoften wetvery wetAug 2 · 48%Sep 18 · 40%
Rain on a day (%)Rain days
Jan4414
Feb4312
Mar4313
Apr4313
May4514
Jun4413
Jul4514
Aug4614
Sep4112
Oct4213
Nov4413
Dec4113

Monthly rainfall

Over a full year, Craigavon collects about 843 mm of rain across 159 wet days — roughly 70 mm in an average month.

It doesn’t fall evenly. August is the wettest month with 81 mm, while February is the driest at just 59 mm. The three wettest months alone bring about 28% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100JanFebMarAprMayJunJulAugSepOctNovDec715960646874768166777475
Rainfall (mm)Rain daysSnow days
Jan71141
Feb59121
Mar60131
Apr64130
May68140
Jun74130
Jul76140
Aug81140
Sep66120
Oct77130
Nov74130
Dec75131

Snow in Craigavon

Average snowy days through the year, the snow-season span, and estimated snowfall — for ski trips and the perennial 'will there be snow at Christmas?' question.

Craigavon averages about 4 snowy days a year. Snow season runs roughly Nov 29 to Apr 2 — about 4.1 months.

January is snowiest, with roughly 1.2 day of snow and an estimated 5 cm of snowfall. Over the year that adds up to an estimated 16 cm of snow.

01234JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonJan 15
Snow daysSnowfall (cm)
Jan15
Feb13
Mar13
Apr00
May01
Jun00
Jul00
Aug00
Sep00
Oct00
Nov01
Dec12

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Craigavon, the average share of the sky covered by clouds shows mild seasonal variation over the course of the year.

The clearer part of the year begins around September 25 and lasts for 4.5 months, ending around February 9. The clearest month is November, when the sky is clear, mostly clear, or partly cloudy 25% of the time on average.

The cloudier part of the year begins around June 6 and lasts for 3.6 months, ending around September 24. The cloudiest month is July, when it is overcast or mostly cloudy 86% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecNov 25 · 26%Jul 6 · 12%mostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan2377
Feb2179
Mar2080
Apr2377
May2476
Jun1783
Jul1486
Aug1684
Sep1981
Oct2377
Nov2575
Dec2377

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 17, brings about 17 hours of light; the shortest, around December 17, only 7 hours — a swing of roughly 10 hours.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan7.68:474:23
Feb9.38:005:20
Mar11.56:526:19
Apr13.75:337:19
May15.74:298:15
Jun16.93:588:54
Jul16.44:178:45
Aug14.75:097:50
Sep12.56:076:33
Oct10.27:055:16
Nov8.28:074:15
Dec7.18:503:53

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Craigavon gets about 2 sunny days a month gloomy — and it barely shifts through the year, holding between 1 and 4 days every month. Clear skies here are a flat line, not a season.

0510JanFebMarAprMayJunJulAugSepOctNovDecgloomymixedNov 244 daysAug 201 days
Sunny daysSky
Jan3Gloomy
Feb2Gloomy
Mar2Gloomy
Apr2Gloomy
May3Gloomy
Jun2Gloomy
Jul1Gloomy
Aug1Gloomy
Sep1Gloomy
Oct2Gloomy
Nov3Gloomy
Dec3Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Craigavon, the air stays dry or comfortable essentially all year. Even in August, the muggiest month, it feels humid or worse only about 4% of the time — humidity is not something you need to plan around here.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDeccomfortabledry
Dry (%)Comfortable (%)Humid (%)
Jan10000
Feb10000
Mar10000
Apr10000
May9820
Jun88111
Jul69284
Aug68294
Sep86131
Oct9640
Nov10000
Dec10000

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Craigavon is typically light breeze, near 14 km/h, and varies little with the seasons.

The windier part of the year lasts 5.7 months, from around Oct 17 to Apr 6. The windiest month is January, averaging about 16 km/h (light breeze).

The calmer part of the year runs from around Apr 7 to Oct 16, with July the calmest month at about 12 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeJan 9 · 16 km/hJul 21 · 12 km/h
Wind speed (km/h)Feels
Jan16light breeze
Feb16light breeze
Mar15light breeze
Apr14light breeze
May13light breeze
Jun13light breeze
Jul12light breeze
Aug13light breeze
Sep14light breeze
Oct14light breeze
Nov15light breeze
Dec15light breeze

Best time to visit Craigavon

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Craigavon throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around mid September, Craigavon is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Craigavon for general outdoor tourist activities is from late May to late September, with a peak score in the third week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 19 · 5.2

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan1.0poor
Feb1.2poor
Mar1.8poor
Apr2.8poor
May3.8fair
Jun4.8fair
Jul5.1fair
Aug5.1fair
Sep4.5fair
Oct3.2poor
Nov1.9poor
Dec1.1poor

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Craigavon for hot-weather activities is from early July to late August, with a peak score in the last week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 24 · 2.1

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Craigavon, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around July (highs near 19°C), the essentials are rain gear. In the cold season around January (highs near 7°C), pack a warm layer, a heavy coat and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, Craigavon sees daytime highs around 19°C and nights near 12°C. Pack rain gear. About 14 days see rain.

Sea temperature near Craigavon

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 49 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 (midday) in Craigavon by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Craigavon 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

Average hourly UV index in Craigavon

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in May the burn window is concentrated in the middle of the day: about 6.5 hours a day reach index 3 (protection recommended). Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan00
Feb00
Mar00
Apr1.50
May6.50
Jun6.50
Jul70
Aug60
Sep2.50
Oct00
Nov00
Dec00
Almanac & agriculture

Growing season

Chance of a frost-free dayReliably frost-free (≥90%)

Craigavon is mild enough that a frost-free day stays more likely than not even in midwinter. Nights are reliably above freezing from about March 16 to November 22 (252 days); outside that window a hard frost is an occasional risk.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecreliably frost-freeMar 1690%Nov 2290%
Frost-free chance (%)Frost nights
Jan8331
Feb8328
Mar9012
Apr960
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct990
Nov939
Dec8431

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Craigavon banks about 567 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.

0200400600JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb0
Mar0
Apr0
May34
Jun108
Jul163
Aug155
Sep91
Oct16
Nov0
Dec0

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Craigavon receives about 2.6 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 0.4 and 4.9 kWh/m².

The brighter stretch of the year lasts 5.9 months, from around Mar 22 to Sep 16. The brightest month is June, averaging about 4.7 kWh/m² (bright).

The dimmest month is December, down near 0.5 kWh/m² — roughly 90% less than the June peak.

0123456JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightJun 14.9 kWhDec 210.4 kWh
Solar energy (kWh/m²)Level
Jan0.6Dim
Feb1.3Dim
Mar2.3Moderate
Apr3.8Moderate
May4.8Bright
Jun4.7Bright
Jul4.3Bright
Aug3.6Moderate
Sep2.6Moderate
Oct1.5Dim
Nov0.8Dim
Dec0.5Dim

Where is Craigavon?

Craigavon sits at 54.4°N, 6.4°W, 34 m above sea level, in United Kingdom. The nearest listed city is Portadown, 5.0 km away.

Topography around Craigavon

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

Within 3 km, the terrain around Craigavon has only modest variations in elevation — a maximum elevation change of 57 m around an average of 38 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 164 m; within 80 km, large variations in elevation — a maximum elevation change of 860 m.

The land around Craigavon is covered by grassland (52%), trees (23%) and artificial surfaces (21%) within 3 km, grassland (61%) within 16 km, and grassland (64%) and water (26%) within 80 km.

3 km
57 m
16 km
164 m
80 km
860 m
treesgrasslandcroplandartificial surfaceswater
Nearby: Portadown 5.0 km · Banbridge 13 km · Lisburn 24 km · Newry 30 km · Antrim 32 km · Belfast 34 km · Castlereagh 35 km · Newtownabbey 39 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 Craigavon (54.4471°, -6.387°, elevation 34 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).