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:
15°C
59.0°F
°C °F

Condition: Drizzle

Pressure: 1,011 hPa

Feel like: 16 °C

Temperature: 15°C

Cloud: 100%

Humidity: 98%

Wind: SW - 11 km/h

Visibility: 7.3 km

Weather forecast

Sat
20 Jun
10°C / 27°C
Overcast
Sun
21 Jun
20°C / 29°C
Slight Thunderstorm
Mon
22 Jun
17°C / 27°C
Clear Sky
Tue
23 Jun
14°C / 27°C
Clear Sky
Wed
24 Jun
19°C / 26°C
Slight Thunderstorm
Hourly forecast today:
21:00 PM
15° / 15°
15° / 15°
Drizzle
98% 20 km/h
22:00 PM
15° / 15°
15° / 15°
Drizzle Dense Intensity
99% 20 km/h
23:00 PM
15° / 15°
15° / 15°
Moderate Rain
99% 23 km/h
00:00 AM
15° / 16°
15° / 16°
Drizzle
97% 24 km/h
01:00 AM
15° / 16°
15° / 16°
Overcast
97% 28 km/h
02:00 AM
15° / 15°
15° / 15°
Overcast
98% 31 km/h
03:00 AM
15° / 15°
15° / 15°
Overcast
99% 22 km/h
04:00 AM
15° / 15°
15° / 15°
Overcast
99% 24 km/h
05:00 AM
15° / 15°
15° / 15°
Overcast
99% 23 km/h
06:00 AM
15° / 15°
15° / 15°
Overcast
97% 19 km/h
07:00 AM
14° / 16°
14° / 16°
Overcast
93% 19 km/h

30 Day Averages and Extremes

  • Average high 18.7°C
  • Average low 12.83°C
  • Hottest day 30°C (26 June 2026)
  • Coldest day 0°C (02 July 2026)
  • Average humidity 71.47%
  • Days with precipitation 25 days
  • Highest precipitation 95 mm (05 June 2026)

Yesterday's Data

  • Max: 19°C
  • Min: 15°C
  • Total Precipitation: 1 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 warm weather in Swansea, with temperatures between 17ºC to 20ºC (62.6ºF to 68.0ºF), you might consider wearing:
- Sunscreen (if spending time outdoors)
- Comfortable sandals or sneakers
- T-shirt or short-sleeve blouse
- Sunglasses

Temperature

Early
14°C / 15°C
Morning
15°C / 16°C
Afternoon
16°C / 17°C
Evening
15°C / 15°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 440
  • CO 98
  • NH3 0
  • NO2 5
  • O3 44
  • PM10 8
  • PM25 4
  • SO2 0
  • CH4 1,360

Sunrise / Sunset

03:57
20:38