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:
12°C
53.6°F
°C °F

Condition: Slight Rain

Pressure: 1,005 hPa

Feel like: 7 °C

Temperature: 12°C

Cloud: 100%

Humidity: 88%

Wind: SE - 34 km/h

Visibility: 23.32 km

Weather forecast

Sat
06 Jun
12°C / 15°C
Moderate Drizzle
Sun
07 Jun
9°C / 13°C
Slight Rain
Mon
08 Jun
8°C / 14°C
Drizzle
Tue
09 Jun
10°C / 13°C
Slight Rain
Wed
10 Jun
9°C / 14°C
Moderate Rain Showers
Hourly forecast today:
23:00 PM
10° / 12°
10° / 12°
Slight Rain
88% 60 km/h
00:00 AM
10° / 11°
10° / 11°
Drizzle
91% 59 km/h
01:00 AM
10° / 12°
10° / 12°
Slight Rain
92% 63 km/h
02:00 AM
10° / 12°
10° / 12°
Moderate Drizzle
90% 68 km/h
03:00 AM
10° / 12°
10° / 12°
Moderate Rain
90% 69 km/h
04:00 AM
11° / 12°
11° / 12°
Slight Rain
93% 75 km/h
05:00 AM
12° / 12°
12° / 12°
Moderate Drizzle
96% 68 km/h
06:00 AM
12° / 13°
12° / 13°
Drizzle Dense Intensity
94% 54 km/h
07:00 AM
12° / 12°
12° / 12°
Moderate Drizzle
96% 47 km/h
08:00 AM
12° / 12°
12° / 12°
Moderate Drizzle
95% 47 km/h
09:00 AM
12° / 12°
12° / 12°
Drizzle
96% 47 km/h

30 Day Averages and Extremes

  • Average high 16.47°C
  • Average low 11.4°C
  • Hottest day 30°C (25 May 2026)
  • Coldest day 0°C (18 June 2026)
  • Average humidity 73.0%
  • Days with precipitation 21 days
  • Highest precipitation 99 mm (01 June 2026)

Yesterday's Data

  • Max: 14°C
  • Min: 10°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 11ºC to 14ºC (51.8ºF to 57.2ºF), you should consider wearing:
- Light jacket or cardigan
- Cotton socks
- Light scarf or wrap
- Knit hat (optional for cooler mornings)

Temperature

Early
7°C / 11°C
Morning
5°C / 13°C
Afternoon
6°C / 14°C
Evening
8°C / 13°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 446
  • CO 133
  • NH3 0
  • NO2 2
  • O3 83
  • PM10 7
  • PM25 3
  • SO2 0
  • CH4 1,358

Sunrise / Sunset

03:59
20:29