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Amlwch in September 2026: weather, temperatures and activities

Do you want to visit Amlwch in September 2026? Discover the usual weather at this time of year, average temperatures, the risk of rain, possible activities, and our opinion on whether September is a good month to travel to Amlwch, Wales.

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Is it worth visiting Amlwch in September?

Check your ideal travel criteria and see if the month of September suits your plans to go to Amlwch.
What matters most?
Amlwch in September 2026: weather, temperatures and activities

Page summary

Amlwch in September in summary
Favourable weather
Min 13°C Max 16°C 92 mm 6 day(s) 86% 51% 16°C 10.5 h/day
Best activities in September
Beach and swimmingHiking and trekkingCultural visits and heritageNature and landscapesBoat trip and cruise
Practical guidelines
High crowding 05:51 18:32
Hourly weather

Average weather in Amlwch in September 2026

Favourable weather

The weather in Amlwch in September 2026 is based on statistical data from previous years in September. This allows you to forecast the weather in September 2026. 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 Amlwch in September

Temperatures, precipitation and monthly trends help to better understand the climate in Amlwch in September.

Temperatures and rain in Amlwch in September

Average daily weather

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

Monthly temperatures

The month of September 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 Amlwch in September

Seasonal normals

Seasonal normals of Amlwch in September

Check the seasonal normals in Amlwch in September 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
September
Weather data August September October
Outside temperature
Average temperature 15.3°C 14.3°C 12.4°C
Maximum temperature 16.5°C 15.5°C 13.4°C
Minimum temperature 14.2°C 13.1°C 11.5°C
Record maximum temperature 22.0°C
(2020)
24.0°C
(2021)
19.0°C
(2011)
Record low temperature 8.0°C
(2020)
7.0°C
(2021)
5.0°C
(2018)
Number of days at +30° 0 day(s)
(0%)
0 day(s)
(0%)
0 day(s)
(0%)
Number of days at +18° 6 day(s)
(19%)
3 day(s)
(10%)
0 day(s)
(0%)
Number of days below 0° 0 day(s)
(0%)
0 day(s)
(0%)
0 day(s)
(0%)
Sea temperature
Sea temperature (average) 15.5°C 15.6°C 14.2°C
Sea temperature (minimum) 14.7°C 15.0°C 13.0°C
Sea temperature (maximum) 16.5°C 16.1°C 15.4°C
Wind
Wind speed 24 km/h 25 km/h 28 km/h
Wind temperature 13.1°C 11.5°C 9.2°C
Precipitation (rain)
Precipitation 106.5 mm 91.8 mm 122.8 mm
Number of days with precipitation 23 day(s)
(74%)
18 day(s)
(60%)
21 day(s)
(68%)
Number of days with significant precipitation (greater than 5 mm) 7 day(s)
(24%)
6 day(s)
(20%)
9 day(s)
(28%)
Record precipitation in one day 42.4 mm
(2015)
26.6 mm
(2012)
48.7 mm
(2018)
Other weather data
Humidity 88% 86% 85%
Visibility 9.2 km 9.3 km 9.2 km
Cloud cover 52% 51% 58%
UV index 4 4 3
Daily sunshine 12h 11h 6h
Sunrise and sunset
Sunrise time 04h57 05h51 06h44
Sunset time 19h45 18h32 17h21
Day length 14h48 12h41 10h37
Our opinion on the climate in September
The review of Where And When favourable weather favourable weather fair weather
Activities and events

What to do in Amlwch in September?

Best activities in September
Beach and swimmingHiking and trekkingCultural visits and heritageNature and landscapesBoat trip and cruise
Observed weather

What was the weather like in Amlwch in September last?

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

Mon. Tue. Wed. Thu. Fri. Sat. Sun.
1
Light rain shower
14°C16°C3.8 mm
2
Patchy rain nearby
12°C17°C0.1 mm
3
Patchy rain nearby
13°C15°C1.5 mm
4
Patchy rain nearby
12°C17°C0.1 mm
5
Partly Cloudy
12°C16°C0.0 mm
6
Partly Cloudy
12°C20°C0.0 mm
7
Moderate rain
16°C20°C7.8 mm
8
Patchy rain nearby
11°C16°C0.4 mm
9
Partly Cloudy
12°C18°C0.0 mm
10
Light rain shower
14°C16°C3.0 mm
11
Light rain shower
12°C14°C2.2 mm
12
Patchy rain nearby
11°C14°C3.3 mm
13
Patchy rain nearby
12°C13°C3.1 mm
14
Patchy rain nearby
11°C16°C1.6 mm
15
Light rain shower
13°C14°C1.7 mm
16
Light drizzle
13°C15°C0.4 mm
17
Patchy rain nearby
16°C17°C3.4 mm
18
Patchy rain nearby
14°C17°C0.4 mm
19
Patchy rain nearby
16°C18°C0.7 mm
20
Light rain
11°C14°C7.6 mm
21
Clear/Sunny
8°C12°C0.8 mm
22
Clear/Sunny
9°C12°C0.1 mm
23
Patchy rain nearby
9°C13°C0.0 mm
24
Clear/Sunny
8°C15°C0.0 mm
25
Clear/Sunny
10°C16°C0.0 mm
26
Clear/Sunny
8°C16°C0.0 mm
27
Light drizzle
11°C13°C1.3 mm
28
Partly Cloudy
10°C14°C0.0 mm
29
Overcast
9°C14°C0.0 mm
30
Overcast
12°C15°C0.0 mm
Nearby

Where to go near Amlwch in September?

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

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Every month

Best time to visit Amlwch month by month

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

Frequently asked questions

Travel to to Amlwch in September: 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 Amlwch in September, which places this month 3th out of 12.

Expect an average of 16°C during the day and 13°C at night, with about 92 mm of precipitation spread over 6 rainy days.

The sea is only 16°C on average in September. Swimming is still possible, but it will be cool.

Expect about 10.5 hours of sunshine per day on average for this month.

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

Visitor numbers are moderate: this month is in High crowding, with an index of 62/100. It is often a good compromise between weather and tranquility.

The most favorable months in Amlwch are: 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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