Neath, United Kingdom experiences average highs of 14°C (57°F) and lows of 9°C (48°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.
Neath, United Kingdom Weather & Climate 2026
Monthly climate averages for Neath, 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
5/10
Best: May, June, July, August, September
UV Index
3
Low
Temperature 14°C / 9°C
Feels Like 12°C / 6°C
Rainy Days 15
Rainfall 122 mm
Sunshine 8 h
Humidity 83%
Wind Speed 21 km/h
Dew Point 9°C
Snow Days 2 days
Frost Days 3 days
Hottest Month
20°C
July
Avg Low14°C
Rain15days
Coldest Month
4°C
January
Avg High8°C
Rain14days
Driest Month
12days
April
Avg High13°C
Avg Low6°C
Windiest Month
25 km/h
February (Gusts 54)
Sea Temperature
7°C – 19°C
Warmest water: August (
18.9°C
)
Worst Time to Visit
Consider avoiding January, February, March, December due to heavy rainfall.
Sun Position
Sunrise 04:58
Daylight 16.6h
Sunset 21:36
Live conditions—
Neath on the map · live conditions
Neath, United Kingdom
- Continent
- Europe
- Country
- United Kingdom
- City
- Neath
- Population
- 46.1K
- Coordinates
- 51.66°, -3.80°
Seasonal Breakdown
Spring
Mar–May
Avg High 13°C
Avg Low 7°C
Rain 14 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 19°C
Avg Low 13°C
Rain 16 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 14°C
Avg Low 10°C
Rain 16 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 9°C
Avg Low 4°C
Rain 16 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: 8°C / 4°C . Feb: 9°C / 4°C . Mar: 10°C / 5°C . Apr: 13°C / 6°C . May: 16°C / 9°C . Jun: 19°C / 12°C . Jul: 20°C / 14°C . Aug: 20°C / 14°C . Sep: 18°C / 12°C . Oct: 15°C / 10°C . Nov: 11°C / 7°C . Dec: 9°C / 6°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 130 mm. Feb: 136 mm. Mar: 121 mm. Apr: 79 mm. May: 94 mm. Jun: 98 mm. Jul: 100 mm. Aug: 114 mm. Sep: 134 mm. Oct: 151 mm. Nov: 139 mm. Dec: 166 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 88%. Feb: 85%. Mar: 83%. Apr: 78%. May: 78%. Jun: 80%. Jul: 80%. Aug: 82%. Sep: 84%. Oct: 86%. Nov: 87%. Dec: 90%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 22 km/h . Feb: 25 km/h . Mar: 23 km/h . Apr: 20 km/h . May: 18 km/h . Jun: 19 km/h . Jul: 19 km/h . Aug: 20 km/h . Sep: 20 km/h . Oct: 22 km/h . Nov: 22 km/h . Dec: 23 km/h .
Sunshine
Sunshine
Sunshine: Jan: 4h. Feb: 5h. Mar: 7h. Apr: 10h. May: 11h. Jun: 11h. Jul: 11h. Aug: 10h. Sep: 8h. Oct: 6h. Nov: 4h. Dec: 3h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 8°C . Feb: 7°C . Mar: 8°C . Apr: 11°C . May: 14°C . Jun: 17°C . Jul: 18°C . Aug: 19°C . Sep: 18°C . Oct: 15°C . Nov: 12°C . Dec: 9°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 1. Feb: UV 1. Mar: UV 3. Apr: UV 4. May: UV 5. Jun: UV 6. Jul: UV 5. 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: 3 days. Feb: 3 days. Mar: 3 days. Apr: 0 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 1 days. Dec: 1 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 29 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 21°C | Jul · 20°C |
| Coldest month | Jan 2025 · 2°C | Jan · 4°C |
| Wettest month | Nov 2025 · 249 mm | Dec · 166 mm |
| Windiest month | Dec 2025 · 25 km/h | Feb · 25 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
Good September best
Fair October
Fair November
Poor December
Wet | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 8°C / 4°C | 5°C / 0°C | 14days (130 mm) Wet | 4h Fair | 88% Very Muggy | 1.1 Low | Poor | View Details |
| February | 9°C / 4°C | 5°C / 0°C | 15days (136 mm) Wet | 5.2h Fair | 85% Humid | 1.4 Low | Poor | View Details |
| March | 10°C / 5°C | 7°C / 1°C | 16days (121 mm) Wet | 7.1h Good | 83% Humid | 3.2 Moderate | Poor | View Details |
| April | 13°C / 6°C | 10°C / 3°C | 12days (79 mm) Wet | 9.6h Good | 78% Humid | 4.3 Moderate | Fair | View Details |
| May best | 16°C / 9°C | 15°C / 7°C | 14days (94 mm) Wet | 11h Excellent | 78% Humid | 5.4 High | Good | View Details |
| June best | 19°C / 12°C | 18°C / 11°C | 16days (98 mm) Wet | 11h Excellent | 80% Humid | 6 High | Good | View Details |
| July best | 20°C / 14°C | 20°C / 13°C | 15days (100 mm) Wet | 11h Excellent | 80% Humid | 5.4 High | Good | View Details |
| August best | 20°C / 14°C | 19°C / 13°C | 16days (114 mm) Wet | 10.1h Excellent | 82% Humid | 4.9 Moderate | Good | View Details |
| September best | 18°C / 12°C | 17°C / 11°C | 15days (134 mm) Wet | 7.6h Good | 84% Humid | 3.6 Moderate | Fair | View Details |
| October | 15°C / 10°C | 13°C / 8°C | 17days (151 mm) Wet | 6.1h Fair | 86% Very Muggy | 2.3 Moderate | Fair | View Details |
| November | 11°C / 7°C | 8°C / 4°C | 16days (139 mm) Wet | 4.4h Fair | 87% Very Muggy | 1.2 Low | Poor | View Details |
| December | 9°C / 6°C | 6°C / 2°C | 18days (166 mm) Wet | 3.2h Poor | 90% Very Muggy | 0.7 Low | Wet | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Neath 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 Neath, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Neath 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 Neath is January, with average overnight lows of 4°C (38°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Neath is December, averaging 166mm of precipitation across 18 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Neath runs through December, October, March, June, with the heaviest rainfall in December. Based on 10-year averages for Neath.
Neath receives approximately 90 sunshine hours per year. The sunniest month is May with around 11 hours. Based on climate data for Neath.
The least favorable months to visit Neath are January, February, March, December, primarily due to heavy rainfall. For the best conditions, consider May, June, July, August, September instead.
The annual average UV index in Neath is 3, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Neath is 83%, classified as humid. High humidity makes warm temperatures feel significantly hotter — lightweight, breathable clothing is recommended.
Sea temperatures in Summer average 13°C (55°F), which most swimmers will find too cold without a wetsuit.
Yes, Neath 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 Neath are 21 km/h (13 mph). The windiest month is February with peak winds reaching 25 km/h (15 mph) (gusts up to 54 km/h / 34 mph).
Neath averages 1 clear-sky days per month with overall cloud cover around 73%. The clearest skies occur in May.
The annual average dew point in Neath is 9°C (48°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Neath 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 Neath ranges from 6°C (43°F) to 12°C (54°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 Neath. It earns a climate score of 6.5/10 with Good.
For June in Neath, pack Umbrella, Waterproof jacket, Waterproof shoes. With average highs of 19°C (66°F) and 16 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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