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Barmouth in August 2027: weather, temperatures and activities

Do you want to visit Barmouth 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 Barmouth, Wales.

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Is it worth visiting Barmouth in August?

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

Page summary

Barmouth in August in summary
Fair weather
Min 12°C Max 17°C 143 mm 8 day(s) 95% 61% 16°C 11.6 h/day
Best activities in August
Beach and swimmingHiking and trekkingNature and landscapesBoat trip and cruise
Practical guidelines
Very large crowds 04:58 19:42
Hourly weather

Average weather in Barmouth in August 2027

Fair weather

The weather in Barmouth 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 Barmouth in August

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

Temperatures and rain in Barmouth 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 Barmouth in August

Seasonal normals

Seasonal normals of Barmouth in August

Check the seasonal normals in Barmouth 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 15.0°C 14.4°C 12.8°C
Maximum temperature 17.3°C 16.7°C 15.3°C
Minimum temperature 12.8°C 12.1°C 10.2°C
Record maximum temperature 27.0°C
(2015)
25.0°C
(2020)
25.0°C
(2021)
Record low temperature 9.0°C
(2012)
6.0°C
(2011)
2.0°C
(2012)
Number of days at +30° 0 day(s)
(0%)
0 day(s)
(0%)
0 day(s)
(0%)
Number of days at +18° 12 day(s)
(39%)
10 day(s)
(32%)
5 day(s)
(17%)
Number of days below 0° 0 day(s)
(0%)
0 day(s)
(0%)
0 day(s)
(0%)
Sea temperature
Sea temperature (average) 14.7°C 15.4°C 15.7°C
Sea temperature (minimum) 13.3°C 14.9°C 14.9°C
Sea temperature (maximum) 16.0°C 16.3°C 16.4°C
Wind
Wind speed 16 km/h 18 km/h 17 km/h
Wind temperature 12.0°C 11.2°C 8.8°C
Precipitation (rain)
Precipitation 139.7 mm 143.4 mm 124.4 mm
Number of days with precipitation 22 day(s)
(71%)
24 day(s)
(77%)
19 day(s)
(63%)
Number of days with significant precipitation (greater than 5 mm) 8 day(s)
(26%)
8 day(s)
(27%)
7 day(s)
(24%)
Record precipitation in one day 59.3 mm
(2017)
55.5 mm
(2015)
68.7 mm
(2018)
Other weather data
Humidity 93% 95% 94%
Visibility 8.1 km 8.1 km 8.0 km
Cloud cover 56% 61% 58%
UV index 4 4 3
Daily sunshine 12h 12h 10h
Sunrise and sunset
Sunrise time 04h10 04h58 05h51
Sunset time 20h33 19h42 18h31
Day length 16h23 14h44 12h40
Our opinion on the climate in August
The review of Where And When fair weather fair weather fair weather
Activities and events

What to do in Barmouth in August?

Best activities in August
Beach and swimmingHiking and trekkingNature and landscapesBoat trip and cruise
Possible activities in August
Animal observation
Observed weather

What was the weather like in Barmouth in August last?

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

Mon. Tue. Wed. Thu. Fri. Sat. Sun.
1
Patchy rain nearby
10°C15°C0.0 mm
2
Clear/Sunny
10°C16°C0.0 mm
3
Patchy rain nearby
15°C18°C0.4 mm
4
Patchy rain nearby
14°C17°C5.8 mm
5
Patchy rain nearby
12°C16°C0.2 mm
6
Clear/Sunny
11°C17°C0.0 mm
7
Patchy rain nearby
14°C17°C1.1 mm
8
Clear/Sunny
11°C16°C0.0 mm
9
Light drizzle
14°C16°C0.5 mm
10
Clear/Sunny
11°C18°C0.0 mm
11
Clear/Sunny
14°C23°C0.2 mm
12
Clear/Sunny
16°C27°C0.1 mm
13
Clear/Sunny
16°C24°C0.0 mm
14
Light rain shower
15°C18°C0.4 mm
15
Clear/Sunny
14°C24°C0.0 mm
16
Clear/Sunny
13°C25°C0.0 mm
17
Clear/Sunny
10°C23°C0.0 mm
18
Clear/Sunny
13°C22°C0.0 mm
19
Clear/Sunny
13°C22°C0.0 mm
20
Clear/Sunny
12°C19°C0.0 mm
21
Clear/Sunny
8°C18°C0.0 mm
22
Partly Cloudy
10°C18°C0.0 mm
23
Patchy rain nearby
13°C18°C0.0 mm
24
Partly Cloudy
13°C21°C0.0 mm
25
Clear/Sunny
13°C23°C0.0 mm
26
Patchy rain nearby
14°C16°C2.2 mm
27
Light rain shower
11°C16°C2.6 mm
28
Light rain shower
12°C14°C4.0 mm
29
Patchy rain nearby
12°C16°C1.4 mm
30
Patchy rain nearby
12°C17°C3.4 mm
31
Light rain shower
12°C15°C3.2 mm
Nearby

Where to go near Barmouth in August?

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

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Every month

Best time to visit Barmouth month by month

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

Frequently asked questions

Travel to to Barmouth in August: your frequently asked questions

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

It's an average period, nothing special. Conditions are mediocre in Barmouth in August, which ranks this month 4th out of 12. The choice of region will make a real difference.

Expect an average of 17°C during the day and 12°C at night, with about 143 mm of precipitation spread over 8 rainy days.

The sea is only 15°C on average in August. Swimming is still possible, but it will be cool.

Expect about 11.6 hours of sunshine per day on average for this month.

This month is particularly suited to these activities: Beach and swimming, Hiking and trekking, Nature and landscapes and Boat trip and cruise. 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 84/100. Book your accommodation and transportation well in advance.
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