Swansea
May
Weather in Swansea for May 2026
Your guide to Swansea weather in May - trends and predictions
In general, the average temperature in Swansea at the beginning of May is 13.3 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 15.6 °C by the end of May.
Swansea in May brings notable rainfall, with an average of 18 rainy days and a total precipitation of 92.7 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
13
Dry days
18
Rainy days
0
Snow days
15°/9°
Temperatures
21 km/h
Avg max wind
83 %
Avg humidity
Swansea Weather May
Move between months or click on a day
Temperatures trend during May in Swansea
See the weather trend as well as the moving average line
May weather in Swansea day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Patchy rain possible | 15° /9° | 3.9 mm | 4 | |
| 2 May | Patchy rain possible | 13° /9° | 13.9 mm | 3 | |
| 3 May |  Partly cloudy | 13° /8° | 0.4 mm | 3 | |
| 4 May | Patchy rain possible | 13° /8° | 7.2 mm | 3 | |
| 5 May | Patchy rain possible | 13° /7° | 2.3 mm | 3 | |
| 6 May |  Moderate or heavy rain shower | 13° /8° | 3.5 mm | 3 | |
| 7 May | Patchy rain possible | 13° /9° | 0.2 mm | 3 | |
| 8 May | Patchy rain possible | 14° /9° | 6.4 mm | 3 | |
| 9 May | Patchy rain possible | 14° /9° | 0.5 mm | 4 | |
| 10 May | Patchy rain possible | 15° /9° | 0.8 mm | 4 | |
| 11 May | Moderate or heavy rain shower | 15° /9° | 3.7 mm | 3 | |
| 12 May | Patchy rain possible | 15° /9° | 2.1 mm | 4 | |
| 13 May | Patchy rain possible | 15° /9° | 5.8 mm | 4 | |
| 14 May | Patchy rain possible | 15° /10° | 0.7 mm | 4 | |
| 15 May | Partly cloudy | 14° /9° | 0.2 mm | 4 | |
| 16 May |  Overcast | 15° /8° | 2 mm | 4 | |
| 17 May | Overcast | 15° /9° | 0.3 mm | 4 | |
| 18 May | Overcast | 15° /10° | 0.8 mm | 4 | |
| 19 May | Patchy rain possible | 16° /9° | 0.2 mm | 4 | |
| 20 May |  Cloudy | 15° /9° | 0.2 mm | 4 | |
| 21 May | Light rain shower | 15° /10° | 1.9 mm | 4 | |
| 22 May | Overcast | 16° /9° | 0.6 mm | 4 | |
| 23 May | Patchy rain possible | 14° /8° | 0.2 mm | 3 | |
| 24 May |  Sunny | 16° /10° | 1.3 mm | 4 | |
| 25 May | Cloudy | 15° /9° | 3.7 mm | 3 | |
| 26 May | Light rain shower | 15° /10° | 3.2 mm | 3 | |
| 27 May | Cloudy | 15° /10° | 6.4 mm | 3 | |
| 28 May | Overcast | 15° /11° | 4.4 mm | 3 | |
| 29 May | Patchy rain possible | 16° /10° | 0.4 mm | 4 | |
| 30 May | Patchy rain possible | 17° /10° | 0.2 mm | 4 | |
| 31 May | Patchy rain possible | 16° /10° | 0.3 mm | 4 | |
| Next | |||||
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.
Change Month
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 💧
Quick links
More Swansea weather pages
You are here
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.
Found a mistake?
We appreciate your attention to details. Tell us here.