Swansea, United Kingdom Weather

  1. Swansea, United Kingdom Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Swansea over the next 12 hours
  7. Temperature and possibility of rain in Swansea in the coming days
  8. Rainfall in Swansea in the coming days
  9. Swansea Weather Summary
  10. Weather averages by month
  11. Swansea's weather
  12. Frequently asked questions
  13. Comments
Swansea, Weather
(Photo by Federica Bisso on Unsplash)

Current conditions

Updated:
6°C
42.8°F
°C °F

Condition: Overcast

Pressure: 1,007 hPa

Feel like: 2 °C

Temperature: 6°C

Cloud: 86%

Humidity: 79%

Wind: ENE - 19 km/h

Visibility: 7.72 km

Weather forecast

Wed
11 Nov
8°C / 10°C
Drizzle Dense Intensity
Thu
12 Nov
1°C / 8°C
Overcast
Fri
13 Nov
0°C / 8°C
Overcast
Sat
14 Nov
0°C / 9°C
Overcast
Sun
15 Nov
7°C / 13°C
Moderate Rain
Hourly forecast today:
03:00 AM
3° / 6°
3° / 6°
Overcast
79% 33 km/h
04:00 AM
3° / 6°
3° / 6°
Overcast
79% 27 km/h
05:00 AM
3° / 7°
3° / 7°
Overcast
77% 29 km/h
06:00 AM
3° / 7°
3° / 7°
Overcast
78% 29 km/h
07:00 AM
3° / 7°
3° / 7°
Overcast
78% 28 km/h
08:00 AM
3° / 7°
3° / 7°
Overcast
77% 28 km/h
09:00 AM
3° / 8°
3° / 8°
Overcast
75% 30 km/h
10:00 AM
3° / 8°
3° / 8°
Overcast
72% 30 km/h
11:00 AM
3° / 8°
3° / 8°
Overcast
71% 28 km/h
12:00 PM
4° / 8°
4° / 8°
Drizzle
79% 27 km/h
13:00 PM
5° / 7°
5° / 7°
Moderate Drizzle
87% 25 km/h

30 Day Averages and Extremes

  • Average high 10.37°C
  • Average low 6.23°C
  • Hottest day 15°C (27 October 2026)
  • Coldest day 0°C (13 November 2026)
  • Average humidity 75.87%
  • Days with precipitation 17 days
  • Highest precipitation 61 mm (18 November 2026)

Yesterday's Data

  • Max: 9°C
  • Min: 4°C
  • Total Precipitation: 0 mm

Temperature and possibility of rain in Swansea over the next 12 hours

Temperature and possibility of rain in Swansea in the coming days

Rainfall in Swansea in the coming days

Swansea Climate Summary

Swansea features a Marine west coast, warm summer (Köppen classification: Cfb), with an average annual temperature of 11.53ºC (52.75ºF), which is about 0.78% higher than the national average for United Kingdom. Annually, the city experiences approximately 104.82 millimeters (4.13 inches) of rainfall, spread across 179.65 rainy days, accounting for 49.22% of the year.

Longitude 51.62144
Latitude -3.943646
Yearly high temperature 12.93ºC (55.27ºF)
Yearly low temperature 8.94ºC (48.09ºF)
Hottest month July 18.23ºC (64.81ºF)
Coldest month December 6.26ºC (43.27ºF)
Yearly precip 104.82mm (4.13in)
Days with rainfall 179.65 days (49.22%)
Driest month April (80.1%)
Wettest month December (83.14%)

Weather averages by month

Month High / Low (°C) Rain
January 7.97° / 5.05° 17.73 days
February 8.02° / 4.84° 14.91 days
March 9.55° / 5.21° 12.36 days
April 11.88° / 6.77° 10.45 days
May 14.09° / 9.07° 11.55 days
June 16.57° / 11.66° 13.82 days
July 18.23° / 13.65° 13.64 days
August 17.89° / 13.92° 17.73 days
September 16.73° / 12.46° 14.18 days
October 14.13° / 10.59° 16.55 days
November 10.93° / 7.85° 17.64 days
December 9.11° / 6.26° 19.09 days

Swansea's weather

Frequently asked questions

1. What is the hottest month in Swansea?

July has the highest average monthly temperature (daily mean of 18.23ºC) and December are the coolest (daily mean of 6.26ºC).

2. What should I wear in Swansea today?

For today's cold weather in Swansea, with temperatures ranging from 5ºC to 8ºC (41.0ºF to 46.4ºF), you should wear:
- Wool or thermal socks
- Layered clothing (such as a thermal shirt under a sweater)
- Closed-toe shoes or boots
- Long pants (jeans or other thick materials)

Temperature

Early
3°C / 6°C
Morning
3°C / 8°C
Afternoon
6°C / 7°C
Evening
6°C / 8°C

Air quality

Moderate

Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals

  • CO2 453
  • CO 202
  • NH3 0
  • NO2 10
  • O3 48
  • PM10 20
  • PM25 15
  • SO2 1
  • CH4 1,443

Sunrise / Sunset

07:25
16:33