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Llanelli in August 2027: weather, temperatures and activities

Do you want to visit Llanelli in August 2027? Discover the usual weather at this time of year, average temperatures, the risk of rain, possible activities, and our opinion on whether August is a good month to travel to Llanelli, Wales.

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Is it worth visiting Llanelli in August?

Check your ideal travel criteria and see if the month of August suits your plans to go to Llanelli.
What matters most?
Llanelli in August 2027: weather, temperatures and activities

Page summary

Llanelli in August in summary
Favourable weather
Min 14°C Max 18°C 146 mm 10 day(s) 90% 52% 18°C 12.2 h/day
Best activities in August
Beach and swimmingNature and landscapes
Practical guidelines
Very large crowds 05:02 19:40
Hourly weather

Average weather in Llanelli in August 2027

Favourable weather

The weather in Llanelli in August 2027 is based on statistical data from previous years in August. This allows you to forecast the weather in August 2027. Check the hourly statistics (6:00, 9:00, 12:00, 15:00, 18:00, 21:00, 0:00 and 3:00), with the associated average temperature, for the whole month, and also, by navigating the tabs, for the beginning, middle and end of the month.

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Climate

Climate of Llanelli in August

Temperatures, precipitation and monthly trends help to better understand the climate in Llanelli in August.

Temperatures and rain in Llanelli in August

Average daily weather

Temperatures and rain day by day in August.
Minimal Average Maximums Average rainfall

Monthly temperatures

The month of August is highlighted to compare it quickly with the rest of the year.
Minimal Average Maximums

Monthly precipitation

The bar for the month under study is highlighted.
Average rainfall

About the climate in Llanelli in August

Seasonal normals

Seasonal normals of Llanelli in August

Check the seasonal normals in Llanelli in August and compare the weather with the previous month and the following month (or the months of your choice by selecting months in the form below): temperatures, wind, rain, humidity, climate rating...

Last updated: 12/01/2026
Reference period for normals: January 2009 - December 2025
Month analyzed
August
Weather data July August September
Outside temperature
Average temperature 16.3°C 16.0°C 14.6°C
Maximum temperature 18.0°C 17.7°C 16.7°C
Minimum temperature 14.5°C 14.2°C 12.5°C
Record maximum temperature 25.0°C
(2013)
24.0°C
(2020)
26.0°C
(2021)
Record low temperature 11.0°C
(2012)
8.0°C
(2020)
6.0°C
(2012)
Number of days at +30° 0 day(s)
(0%)
0 day(s)
(0%)
0 day(s)
(0%)
Number of days at +18° 16 day(s)
(52%)
15 day(s)
(48%)
9 day(s)
(30%)
Number of days below 0° 0 day(s)
(0%)
0 day(s)
(0%)
0 day(s)
(0%)
Sea temperature
Sea temperature (average) 15.7°C 16.7°C 16.5°C
Sea temperature (minimum) 14.0°C 16.1°C 15.6°C
Sea temperature (maximum) 17.5°C 17.8°C 17.4°C
Wind
Wind speed 20 km/h 22 km/h 22 km/h
Wind temperature 13.8°C 13.4°C 11.2°C
Precipitation (rain)
Precipitation 126.9 mm 146.5 mm 115.1 mm
Number of days with precipitation 21 day(s)
(68%)
22 day(s)
(71%)
18 day(s)
(60%)
Number of days with significant precipitation (greater than 5 mm) 8 day(s)
(25%)
10 day(s)
(31%)
7 day(s)
(25%)
Record precipitation in one day 59.2 mm
(2017)
55.2 mm
(2013)
55.2 mm
(2018)
Other weather data
Humidity 90% 90% 89%
Visibility 9.1 km 9.0 km 9.0 km
Cloud cover 49% 52% 49%
UV index 4 4 4
Daily sunshine 13h 12h 11h
Sunrise and sunset
Sunrise time 04h16 05h02 05h52
Sunset time 20h28 19h40 18h31
Day length 16h12 14h38 12h39
Our opinion on the climate in August
The review of Where And When favourable weather favourable weather favourable weather
Activities and events

What to do in Llanelli in August?

Best activities in August
Beach and swimmingNature and landscapes
Possible activities in August
Hiking and trekking
Observed weather

What was the weather like in Llanelli in August last?

Find the observed weather calendar in Llanelli in August 2025, with each day’s weather, temperatures and precipitation.

Mon. Tue. Wed. Thu. Fri. Sat. Sun.
1
Cloudy
12°C18°C0.0 mm
2
Partly Cloudy
12°C19°C0.0 mm
3
Patchy rain nearby
17°C20°C0.2 mm
4
Light rain
18°C20°C1.3 mm
5
Patchy rain nearby
13°C19°C0.0 mm
6
Clear/Sunny
13°C18°C0.0 mm
7
Patchy rain nearby
15°C19°C0.6 mm
8
Clear/Sunny
13°C18°C0.0 mm
9
Clear/Sunny
17°C19°C0.1 mm
10
Clear/Sunny
14°C20°C0.0 mm
11
Partly Cloudy
16°C24°C0.0 mm
12
Clear/Sunny
17°C26°C0.0 mm
13
Clear/Sunny
17°C22°C0.0 mm
14
Patchy rain nearby
17°C20°C0.5 mm
15
Clear/Sunny
16°C24°C0.0 mm
16
Clear/Sunny
16°C26°C0.0 mm
17
Clear/Sunny
13°C24°C0.0 mm
18
Clear/Sunny
15°C24°C0.0 mm
19
Partly Cloudy
16°C23°C0.0 mm
20
Clear/Sunny
14°C22°C0.0 mm
21
Clear/Sunny
10°C19°C0.0 mm
22
Clear/Sunny
12°C20°C0.0 mm
23
Partly Cloudy
15°C20°C0.0 mm
24
Clear/Sunny
14°C21°C0.0 mm
25
Clear/Sunny
15°C21°C0.0 mm
26
Patchy rain nearby
16°C19°C0.7 mm
27
Patchy rain nearby
15°C18°C3.7 mm
28
Light rain shower
14°C16°C6.8 mm
29
Patchy light drizzle
13°C18°C1.9 mm
30
Light rain
14°C17°C2.7 mm
31
Patchy rain nearby
14°C17°C3.0 mm
Nearby

Where to go near Llanelli in August?

Compare cities and destinations near Llanelli in August to find another travel stop, a nearby alternative or a logical continuation of your stay in Llanelli.

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Every month

Best time to visit Llanelli month by month

Compare the weather in Llanelli across all months of the year and open each detailed page to find the best time.

Frequently asked questions

Travel to to Llanelli in August: your frequently asked questions

Short answers to the questions we ask ourselves before booking for this month.

Yes, it’s a good time. Conditions are favorable in Llanelli in August, which places this month 3th out of 12.

Expect an average of 18°C during the day and 14°C at night, with about 146 mm of precipitation spread over 10 rainy days.

The sea is only 17°C on average in August. Swimming is still possible, but it will be cool.

Expect about 12.2 hours of sunshine per day on average for this month.

This month is particularly suited to these activities: Beach and swimming and Nature and landscapes. These are the ones for which the conditions on site are most favourable.

Yes: this month is in Very large crowds, with a visitor index of 83/100. Book your accommodation and transportation well in advance.

The most favorable months in Llanelli are: June, July, August and September. You are therefore already in one of the best times of the year; shifting your plans would not gain you much in terms of weather.
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