Brecon, 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 15 rainy days per month. Average highs have warmed by 1.0°C (1.8°F) across the available records.
Brecon, United Kingdom Weather & Climate 2026
Monthly climate averages for Brecon, United Kingdom. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Sep 
Wetter season: Mar–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
4.8/10
Best: May, June, July, August, September
UV Index
3
Low
Temperature 13°C / 7°C
Feels Like 11°C / 5°C
Rainy Days 15
Rainfall 102 mm
Sunshine 7 h
Humidity 86%
Wind Speed 20 km/h
Dew Point 8°C
Snow Days 3 days
Frost Days 5 days
Hottest Month
20°C
July
Avg Low13°C
Rain15days
Coldest Month
2°C
January
Avg High7°C
Rain14days
Driest Month
12days
April
Avg High12°C
Avg Low4°C
Windiest Month
23 km/h
February (Gusts 54)
Worst Time to Visit
Consider avoiding January, February, November, December due to heavy rainfall.
Sun Position
Sunrise 04:55
Daylight 16.7h
Sunset 21:36
Live conditions—
Brecon on the map · live conditions
Brecon, United Kingdom
- Continent
- Europe
- Country
- United Kingdom
- City
- Brecon
- Population
- 8.3K
- Coordinates
- 51.95°, -3.39°
Seasonal Breakdown
Spring
Mar–May
Avg High 13°C
Avg Low 5°C
Rain 14 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 19°C
Avg Low 12°C
Rain 15 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 14°C
Avg Low 8°C
Rain 15 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 8°C
Avg Low 3°C
Rain 15 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 / 2°C . Feb: 8°C / 3°C . Mar: 10°C / 3°C . Apr: 12°C / 4°C . May: 16°C / 8°C . Jun: 19°C / 11°C . Jul: 20°C / 13°C . Aug: 20°C / 13°C . Sep: 17°C / 11°C . Oct: 14°C / 9°C . Nov: 10°C / 5°C . Dec: 8°C / 4°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 102 mm. Feb: 107 mm. Mar: 107 mm. Apr: 74 mm. May: 86 mm. Jun: 92 mm. Jul: 83 mm. Aug: 88 mm. Sep: 109 mm. Oct: 125 mm. Nov: 116 mm. Dec: 130 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 92%. Feb: 89%. Mar: 86%. Apr: 80%. May: 80%. Jun: 81%. Jul: 81%. Aug: 84%. Sep: 87%. Oct: 89%. Nov: 92%. Dec: 94%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 21 km/h . Feb: 23 km/h . Mar: 21 km/h . Apr: 18 km/h . May: 17 km/h . Jun: 18 km/h . Jul: 17 km/h . Aug: 19 km/h . Sep: 19 km/h . Oct: 20 km/h . Nov: 20 km/h . Dec: 22 km/h .
Sunshine
Sunshine
Sunshine: Jan: 4h. Feb: 5h. Mar: 7h. Apr: 9h. May: 11h. Jun: 11h. Jul: 11h. Aug: 10h. Sep: 7h. Oct: 6h. Nov: 4h. Dec: 3h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 1. Feb: UV 1. Mar: UV 3. Apr: UV 5. May: UV 5. Jun: UV 6. Jul: UV 6. Aug: UV 5. Sep: UV 4. 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: 4 days. Feb: 4 days. Mar: 4 days. Apr: 1 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 2 days. Dec: 3 days.
Climate Trends
Average highs have warmed by 1.0°C (1.8°F) across the available records. Average rainfall is trending wetter by about 17 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 21°C | Jul · 20°C |
| Coldest month | Jan 2025 · 1°C | Jan · 2°C |
| Wettest month | Nov 2025 · 192 mm | Dec · 130 mm |
| Windiest month | Dec 2025 · 24 km/h | Feb · 23 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Fair May best
Good June best
Good July best
Good August best
Excellent September best
Good October
Poor November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 7°C / 2°C | 4°C / -2°C | 14days (102 mm) Wet | 3.8h Poor | 92% Very Muggy | 1 Low | Poor | View Details |
| February | 8°C / 3°C | 4°C / -1°C | 14days (107 mm) Wet | 5.1h Fair | 89% Very Muggy | 1.4 Low | Poor | View Details |
| March | 10°C / 3°C | 6°C / 0°C | 16days (107 mm) Wet | 6.9h Fair | 86% Very Muggy | 3.2 Moderate | Poor | View Details |
| April | 12°C / 4°C | 10°C / 1°C | 12days (74 mm) Wet | 9.2h Good | 80% Humid | 4.5 Moderate | Fair | View Details |
| May best | 16°C / 8°C | 14°C / 6°C | 13days (86 mm) Wet | 10.8h Excellent | 80% Humid | 5.4 High | Good | View Details |
| June best | 19°C / 11°C | 18°C / 10°C | 15days (92 mm) Wet | 10.7h Excellent | 81% Humid | 6 High | Good | View Details |
| July best | 20°C / 13°C | 20°C / 12°C | 15days (83 mm) Wet | 10.7h Excellent | 81% Humid | 5.5 High | Good | View Details |
| August best | 20°C / 13°C | 19°C / 12°C | 14days (88 mm) Wet | 9.6h Good | 84% Humid | 4.9 Moderate | Excellent | View Details |
| September best | 17°C / 11°C | 16°C / 9°C | 14days (109 mm) Wet | 7.3h Good | 87% Very Muggy | 3.5 Moderate | Good | View Details |
| October | 14°C / 9°C | 12°C / 6°C | 16days (125 mm) Wet | 5.7h Fair | 89% Very Muggy | 2.2 Moderate | Poor | View Details |
| November | 10°C / 5°C | 7°C / 2°C | 15days (116 mm) Wet | 4.1h Fair | 92% Very Muggy | 1.2 Low | Poor | View Details |
| December | 8°C / 4°C | 5°C / 0°C | 17days (130 mm) Wet | 3.1h Poor | 94% Very Muggy | 0.7 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Brecon 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 Brecon, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Brecon is July, with average daytime highs of 20°C (68°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Brecon is January, with average overnight lows of 2°C (36°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Brecon is December, averaging 130mm of precipitation across 17 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Brecon runs through December, March, October, June, with the heaviest rainfall in December. Based on 10-year averages for Brecon.
Brecon receives approximately 87 sunshine hours per year. The sunniest month is May with around 11 hours. Based on climate data for Brecon.
The least favorable months to visit Brecon are January, February, November, December, primarily due to heavy rainfall. For the best conditions, consider May, June, July, August, September instead.
The annual average UV index in Brecon is 3, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Brecon is 86%, classified as humid. High humidity makes warm temperatures feel significantly hotter — lightweight, breathable clothing is recommended.
Yes, Brecon receives snow. Months with snowfall average 3 snow days and 4 cm (2 in) of accumulation, with about 5 frost days during winter.
Average wind speeds in Brecon are 20 km/h (12 mph). The windiest month is February with peak winds reaching 23 km/h (14 mph) (gusts up to 54 km/h / 34 mph).
Brecon 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 Brecon is 8°C (46°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Brecon 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 Brecon ranges from 5°C (41°F) to 11°C (52°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, June is a great time to visit Brecon. It earns a climate score of 6.5/10 with Good.
For June in Brecon, pack Warm evening layer, Umbrella, Waterproof jacket, Waterproof shoes. With average highs of 19°C (65°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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