Armagh, United Kingdom experiences average highs of 13°C (55°F) and lows of 7°C (45°F) throughout the year. Rainfall is frequent, averaging about 14 rainy days per month. Average highs have warmed by 0.9°C (1.6°F) across the available records.
Armagh, United Kingdom Weather & Climate 2026
Monthly climate averages for Armagh, United Kingdom. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Mar–Oct At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
4.7/10
Best: May, June, July, August, September
UV Index
3
Low
Temperature 13°C / 7°C
Feels Like 10°C / 4°C
Rainy Days 14
Rainfall 76 mm
Sunshine 6 h
Humidity 82%
Wind Speed 19 km/h
Dew Point 7°C
Snow Days 2 days
Frost Days 3 days
Hottest Month
19°C
July
Avg Low12°C
Rain14days
Coldest Month
3°C
January
Avg High7°C
Rain13days
Driest Month
12days
May
Avg High15°C
Avg Low8°C
Windiest Month
24 km/h
February (Gusts 52)
Worst Time to Visit
Consider avoiding January, February, March, December due to very cold temperatures, frequent rain.
Sun Position
Sunrise 04:53
Daylight 17.2h
Sunset 22:04
Live conditions—
Armagh on the map · live conditions
Armagh, United Kingdom
- Continent
- Europe
- Country
- United Kingdom
- City
- Armagh
- Population
- 14.8K
- Coordinates
- 54.35°, -6.67°
Seasonal Breakdown
Spring
Mar–May
Avg High 12°C
Avg Low 5°C
Rain 13 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 18°C
Avg Low 12°C
Rain 15 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 13°C
Avg Low 8°C
Rain 14 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 8°C
Avg Low 3°C
Rain 13 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 7°C / 3°C . Feb: 8°C / 3°C . Mar: 10°C / 4°C . Apr: 12°C / 5°C . May: 15°C / 8°C . Jun: 18°C / 11°C . Jul: 19°C / 12°C . Aug: 18°C / 12°C . Sep: 16°C / 10°C . Oct: 13°C / 8°C . Nov: 10°C / 5°C . Dec: 8°C / 4°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 65 mm. Feb: 76 mm. Mar: 72 mm. Apr: 67 mm. May: 63 mm. Jun: 76 mm. Jul: 83 mm. Aug: 95 mm. Sep: 83 mm. Oct: 84 mm. Nov: 73 mm. Dec: 80 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 87%. Feb: 83%. Mar: 82%. Apr: 79%. May: 77%. Jun: 77%. Jul: 79%. Aug: 81%. Sep: 83%. Oct: 84%. Nov: 87%. Dec: 89%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 21 km/h . Feb: 24 km/h . Mar: 21 km/h . Apr: 18 km/h . May: 17 km/h . Jun: 17 km/h . Jul: 17 km/h . Aug: 18 km/h . Sep: 19 km/h . Oct: 21 km/h . Nov: 20 km/h . Dec: 21 km/h .
Sunshine
Sunshine
Sunshine: Jan: 4h. Feb: 5h. Mar: 6h. Apr: 8h. May: 10h. Jun: 9h. Jul: 8h. Aug: 8h. Sep: 7h. Oct: 5h. Nov: 4h. Dec: 3h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 1. Feb: UV 2. Mar: UV 3. Apr: UV 4. May: UV 5. Jun: UV 6. Jul: UV 5. Aug: UV 5. Sep: UV 3. Oct: UV 2. Nov: UV 1. Dec: UV 1.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 2 days. Feb: 2 days. Mar: 2 days. Apr: 0 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 0 days. Dec: 1 days.
Climate Trends
Average highs have warmed by 0.9°C (1.6°F) across the available records. Average rainfall is trending wetter by about 9 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 19°C | Jul · 19°C |
| Coldest month | Jan 2025 · 2°C | Jan · 3°C |
| Wettest month | Oct 2025 · 113 mm | Aug · 95 mm |
| Windiest month | Feb 2025 · 23 km/h | Feb · 24 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Fair May best
Fair June best
Good July best
Good August best
Fair September best
Good October
Fair November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 7°C / 3°C | 4°C / -1°C | 13days (65 mm) Wet | 3.5h Poor | 87% Very Muggy | 0.9 Low | Poor | View Details |
| February | 8°C / 3°C | 4°C / -1°C | 13days (76 mm) Wet | 4.7h Fair | 83% Humid | 1.5 Low | Poor | View Details |
| March | 10°C / 4°C | 6°C / 0°C | 15days (72 mm) Wet | 6.3h Fair | 82% Humid | 2.6 Moderate | Poor | View Details |
| April | 12°C / 5°C | 9°C / 2°C | 13days (67 mm) Wet | 8.3h Good | 79% Humid | 3.9 Moderate | Fair | View Details |
| May best | 15°C / 8°C | 13°C / 6°C | 12days (63 mm) Wet | 9.9h Good | 77% Humid | 5.2 High | Fair | View Details |
| June best | 18°C / 11°C | 16°C / 9°C | 15days (76 mm) Wet | 9.3h Good | 77% Humid | 5.5 High | Good | View Details |
| July best | 19°C / 12°C | 18°C / 11°C | 14days (83 mm) Wet | 8h Good | 79% Humid | 4.7 Moderate | Good | View Details |
| August best | 18°C / 12°C | 17°C / 11°C | 15days (95 mm) Wet | 7.9h Good | 81% Humid | 4.7 Moderate | Fair | View Details |
| September best | 16°C / 10°C | 14°C / 9°C | 13days (83 mm) Wet | 6.7h Fair | 83% Humid | 3.4 Moderate | Good | View Details |
| October | 13°C / 8°C | 11°C / 6°C | 15days (84 mm) Wet | 5h Fair | 84% Humid | 1.9 Low | Fair | View Details |
| November | 10°C / 5°C | 7°C / 2°C | 13days (73 mm) Wet | 3.7h Poor | 87% Very Muggy | 1 Low | Poor | View Details |
| December | 8°C / 4°C | 5°C / 0°C | 13days (80 mm) Wet | 2.5h Poor | 89% Very Muggy | 0.6 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Armagh are May, June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Armagh, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Armagh is July, with average daytime highs of 19°C (65°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Armagh is January, with average overnight lows of 3°C (37°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Armagh is August, averaging 95mm of precipitation across 15 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Armagh runs through March, June, August, October, with the heaviest rainfall in March. Based on 10-year averages for Armagh.
Armagh receives approximately 76 sunshine hours per year. The sunniest month is May with around 10 hours. Based on climate data for Armagh.
The least favorable months to visit Armagh are January, February, March, December, primarily due to very cold temperatures, frequent rain. For the best conditions, consider May, June, July, August, September instead.
The annual average UV index in Armagh is 3, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Armagh is 82%, classified as humid. High humidity makes warm temperatures feel significantly hotter — lightweight, breathable clothing is recommended.
Yes, Armagh receives snow. Months with snowfall average 2 snow days and 2 cm (1 in) of accumulation, with about 3 frost days during winter.
Average wind speeds in Armagh are 19 km/h (12 mph). The windiest month is February with peak winds reaching 24 km/h (15 mph) (gusts up to 52 km/h / 32 mph).
Armagh averages 1 clear-sky days per month with overall cloud cover around 76%. The clearest skies occur in April.
The annual average dew point in Armagh is 7°C (45°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Armagh has a Oceanic climate, classified as Cfb under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Armagh ranges from 4°C (39°F) to 10°C (50°F) on average. Wind chill makes winters feel noticeably colder than the actual temperature — layered clothing is recommended.
Yes, June is a great time to visit Armagh. It earns a climate score of 6.6/10 with Good.
For June in Armagh, pack Layered clothing, Light jacket, Umbrella, Waterproof jacket, Waterproof shoes. With average highs of 18°C (64°F) and 15 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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