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:
9°C
48.2°F
°C °F

Condition: Partly Cloudy

Pressure: 1,021 hPa

Feel like: 7 °C

Temperature: 9°C

Cloud: 69%

Humidity: 89%

Wind: NE - 8 km/h

Visibility: 15.3 km

Weather forecast

Sat
07 Nov
5°C / 11°C
Drizzle
Sun
08 Nov
2°C / 10°C
Overcast
Mon
09 Nov
4°C / 9°C
Overcast
Tue
10 Nov
6°C / 10°C
Slight Rain
Wed
11 Nov
9°C / 13°C
Slight Rain
Hourly forecast today:
20:00 PM
7° / 9°
7° / 9°
Partly Cloudy
89% 15 km/h
21:00 PM
7° / 8°
7° / 8°
Mainly Clear
89% 14 km/h
22:00 PM
6° / 8°
6° / 8°
Partly Cloudy
89% 16 km/h
23:00 PM
6° / 8°
6° / 8°
Overcast
87% 16 km/h
00:00 AM
6° / 8°
6° / 8°
Overcast
87% 17 km/h
01:00 AM
6° / 8°
6° / 8°
Overcast
85% 18 km/h
02:00 AM
6° / 8°
6° / 8°
Drizzle
87% 17 km/h
03:00 AM
7° / 8°
7° / 8°
Drizzle
91% 10 km/h
04:00 AM
7° / 8°
7° / 8°
Overcast
91% 12 km/h
05:00 AM
6° / 8°
6° / 8°
Overcast
90% 14 km/h
06:00 AM
6° / 8°
6° / 8°
Overcast
90% 14 km/h

30 Day Averages and Extremes

  • Average high 10.67°C
  • Average low 6.07°C
  • Hottest day 16°C (26 October 2026)
  • Coldest day 0°C (20 November 2026)
  • Average humidity 76.0%
  • Days with precipitation 20 days
  • Highest precipitation 80 mm (26 October 2026)

Yesterday's Data

  • Max: 9°C
  • Min: 8°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 cool weather in Swansea, with temperatures between 8ºC to 11ºC (46.4ºF to 51.8ºF), you should consider wearing:
- Knit hat (optional for cooler mornings)
- Light jacket or cardigan
- Long-sleeve top or shirt
- Light scarf or wrap

Temperature

Early
6°C / 8°C
Morning
5°C / 8°C
Afternoon
7°C / 11°C
Evening
7°C / 8°C

Air quality

Moderate

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

  • CO2 458
  • CO 277
  • NH3 2
  • NO2 34
  • O3 13
  • PM10 27
  • PM25 24
  • SO2 3
  • CH4 1,489

Sunrise / Sunset

07:18
16:39