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Weather in Swansea for May 2025

Your guide to Swansea weather in May - trends and predictions

    Temperatures

  • In general, the average temperature in Swansea at the beginning of May is 13.1 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 16 °C by the end of May.

  • Rain 🌧️

  • Swansea in May brings notable rainfall, with an average of 18 rainy days and a total precipitation of 92.7 mm.

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Average dry days
13
Dry days
Average rainy days
18
Rainy days
Average snowy days
0
Snow days
Average temperatures
15°/9°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
83 %
Avg humidity

Swansea in May average weather

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Temperatures trend during May in Swansea

See the weather trend as well as the moving average line

May weather day by day

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Date Weather Temperatures Rain UV More
1 May Patchy rain possible
Patchy rain possible
14° /8° 5.5 mm 4
2 May Patchy rain possible
Patchy rain possible
12° /8° 20.9 mm 3
3 May Partly cloudy
Partly cloudy
12° /8° 0.6 mm 4
4 May Moderate or heavy rain shower
Moderate or heavy rain shower
13° /8° 10.5 mm 3
5 May Patchy rain possible
Patchy rain possible
13° /9° 3.4 mm 3
6 May Moderate or heavy rain shower
Moderate or heavy rain shower
14° /9° 5.2 mm 3
7 May Cloudy
Cloudy
14° /10° 0.2 mm 3
8 May Moderate or heavy rain shower
Moderate or heavy rain shower
13° /10° 9.6 mm 3
9 May Patchy rain possible
Patchy rain possible
14° /10° 0.8 mm 4
10 May Moderate rain at times
Moderate rain at times
14° /10° 1.3 mm 4
11 May Moderate or heavy rain shower
Moderate or heavy rain shower
15° /9° 3.1 mm 4
12 May Patchy rain possible
Patchy rain possible
16° /9° 2.2 mm 4
13 May Patchy rain possible
Patchy rain possible
15° /9° 5.7 mm 4
14 May Patchy rain possible
Patchy rain possible
14° /10° 1.1 mm 4
15 May Partly cloudy
Partly cloudy
14° /9° 0.3 mm 4
16 May Overcast
Overcast
15° /8° 3 mm 4
17 May Overcast
Overcast
15° /9° 0.4 mm 4
18 May Overcast
Overcast
15° /10° 1.2 mm 4
19 May Patchy rain possible
Patchy rain possible
16° /9° 0.2 mm 4
20 May Cloudy
Cloudy
16° /9° 0 mm 5
21 May Partly cloudy
Partly cloudy
16° /10° 1.7 mm 4
22 May Overcast
Overcast
16° /9° 0.9 mm 4
23 May Overcast
Overcast
14° /8° 0.2 mm 4
24 May Sunny
Sunny
16° /9° 0 mm 5
25 May Cloudy
Cloudy
16° /9° 4.6 mm 4
26 May Overcast
Overcast
16° /10° 2.2 mm 4
27 May Cloudy
Cloudy
15° /9° 1.1 mm 4
28 May Overcast
Overcast
16° /11° 6 mm 4
29 May Partly cloudy
Partly cloudy
16° /9° 0.3 mm 4
30 May Sunny
Sunny
17° /9° 0.2 mm 5
31 May Overcast
Overcast
16° /10° 0.2 mm 4
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Important Notice
Our weather forecast for Swansea in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Swansea forecast closer to your planned date for the most up-to-date weather information.

Swansea in May - FAQ

What are the expected maximum and minimum temperatures in Swansea during May?
During May, expect a variety of temperatures with highs around 15° and lows near 9°, suitable for diverse activities and preferences.
How much rainfall should be expected in Swansea during May?
Moderate rainfall is anticipated in Swansea during May, with a total of 92.7 mm spread over approximately 18 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Swansea during May?
The average wind speed in Swansea during May is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in Swansea

Explore the daily rainfall trends and prepare for Swanseas May weather 💧

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Location coordinates Where is Swansea?

Get accurate weather forecasts for Swansea, located at latitude 51.621 and longitude -3.943. Stay updated with localized weather information tailored for Swansea.

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