Llanelli in May
6.1out of 10
Possible, with caveats
Cool: highs only around 14°C. Frequent rain: about 13 rainy days.
14°CAvg high
9°CAvg low
13Rainy days (80 mm)
15:24 hDaylight
05:31Sunrise · 20:55 Sunset
Why this score
- Cool: highs only around 14°C
- Frequent rain: about 13 rainy days
- Rain varies a lot between years (±4.7 days)
What to wear and pack
- A warm jacket
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in May varies a lot between years (±4.7 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 8°C | 4°C | 129 mm | 17 | – | – | 4.4 |
| February | 8°C | 4°C | 96 mm | 13 | – | – | 4.9 |
| March | 9°C | 5°C | 84 mm | 14 | – | – | 5.2 |
| April | 11°C | 6°C | 75 mm | 13 | – | – | 5.7 |
| May | 14°C | 9°C | 80 mm | 13 | – | – | 6.1 |
| June | 16°C | 11°C | 86 mm | 13 | – | – | 6.3 |
| July | 18°C | 13°C | 91 mm | 14 | – | – | 6.5 |
| August | 18°C | 13°C | 103 mm | 14 | – | – | 6.4 |
| September | 17°C | 12°C | 97 mm | 13 | – | – | 6.4 |
| October | 14°C | 10°C | 144 mm | 16 | – | – | 5.2 |
| November | 11°C | 7°C | 142 mm | 17 | – | – | 4.7 |
| December | 8°C | 5°C | 142 mm | 16 | – | – | 4.5 |
Frequently asked questions
How hot is Llanelli in May?
Daytime highs average 14°C and nights about 9°C.
When is the best time to visit Llanelli?
The best months are July, August, September, June.