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:
19°C
66.2°F
°C °F

Condition: Overcast

Pressure: 1,023 hPa

Feel like: 16 °C

Temperature: 19°C

Cloud: 80%

Humidity: 49%

Wind: WNW - 15 km/h

Visibility: 36.58 km

Weather forecast

Fri
07 Aug
10°C / 23°C
Overcast
Sat
08 Aug
15°C / 27°C
Drizzle
Sun
09 Aug
14°C / 25°C
Overcast
Mon
10 Aug
15°C / 27°C
Overcast
Tue
11 Aug
16°C / 27°C
Overcast
Hourly forecast today:
16:00 PM
8° / 19°
8° / 19°
Overcast
49% 28 km/h
17:00 PM
9° / 18°
9° / 18°
Partly Cloudy
56% 31 km/h
18:00 PM
9° / 17°
9° / 17°
Partly Cloudy
59% 33 km/h
19:00 PM
9° / 17°
9° / 17°
Clear Sky
62% 32 km/h
20:00 PM
9° / 16°
9° / 16°
Mainly Clear
64% 27 km/h
21:00 PM
10° / 15°
10° / 15°
Overcast
69% 18 km/h
22:00 PM
10° / 14°
10° / 14°
Clear Sky
73% 15 km/h
23:00 PM
9° / 14°
9° / 14°
Clear Sky
76% 10 km/h
00:00 AM
9° / 13°
9° / 13°
Clear Sky
78% 10 km/h
01:00 AM
9° / 13°
9° / 13°
Clear Sky
78% 12 km/h
02:00 AM
9° / 13°
9° / 13°
Clear Sky
78% 11 km/h

30 Day Averages and Extremes

  • Average high 20.6°C
  • Average low 13.63°C
  • Hottest day 27°C (08 August 2026)
  • Coldest day 0°C (19 August 2026)
  • Average humidity 64.9%
  • Days with precipitation 17 days
  • Highest precipitation 75 mm (03 August 2026)

Yesterday's Data

  • Max: 19°C
  • Min: 13°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 warm weather in Swansea, with temperatures between 17ºC to 20ºC (62.6ºF to 68.0ºF), you might consider wearing:
- Sunglasses
- Cotton or linen fabrics
- Sunscreen (if spending time outdoors)
- Comfortable sandals or sneakers

Temperature

Early
10°C / 14°C
Morning
9°C / 16°C
Afternoon
8°C / 19°C
Evening
10°C / 15°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 433
  • CO 130
  • NH3 1
  • NO2 1
  • O3 72
  • PM10 5
  • PM25 3
  • SO2 0
  • CH4 1,359

Sunrise / Sunset

04:48
19:55