Water temperature in Llanfairpwllgwyngyll in April

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Is it warm enough to swim in Llanfairpwllgwyngyll in April? Average water temperature in Llanfairpwllgwyngyll in April is 8.6°C and therefore is not suitable for comfortable swimming. The warmest sea in Llanfairpwllgwyngyll in April is 10.9°C, and the coldest is 4.7°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Llanfairpwllgwyngyll

Changes water temperature in Llanfairpwllgwyngyll in April 2025, 2024

To get an accurate forecast for the water temperature in Llanfairpwllgwyngyll for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Llanfairpwllgwyngyll, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of April.

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 April	8.5°C	7.9°C	4.7°C	8.8°C
2 April	8.5°C	8.2°C	4.8°C	8.8°C
3 April	8.7°C	8.2°C	5°C	8.7°C
4 April	9.1°C	8.1°C	5°C	9.1°C
5 April	9.2°C	8.3°C	5°C	9.2°C
6 April	9.3°C	8.6°C	5°C	9.3°C
7 April	9.3°C	8.7°C	5.3°C	9.3°C
8 April	9.4°C	8.7°C	5°C	9.4°C
9 April	9.5°C	8.9°C	5.2°C	9.5°C
10 April	9.3°C	8.9°C	5.3°C	9.3°C
11 April	9.7°C	9.1°C	5.4°C	9.7°C
12 April	9.5°C	9°C	5.5°C	9.5°C
13 April	9.6°C	9.4°C	5.8°C	9.6°C
14 April	9.5°C	9.3°C	6.2°C	9.5°C
15 April	9.5°C	9.4°C	6.4°C	9.5°C

Day	2025	2024	Min	Max
16 April	9.5°C	9.6°C	6.6°C	9.6°C
17 April	9.4°C	9.5°C	6.7°C	9.6°C
18 April	9.4°C	9.5°C	6.7°C	9.5°C
19 April	9.4°C	9.6°C	7°C	9.6°C
20 April	9.2°C	9.6°C	7.2°C	9.8°C
21 April	9.4°C	9.4°C	7.2°C	10°C
22 April	9.5°C	9.4°C	7.4°C	9.9°C
23 April	9.8°C	9.6°C	7.5°C	10.1°C
24 April	9.8°C	9.9°C	7.6°C	10°C
25 April	9.8°C	9.9°C	7.5°C	10°C
26 April	10.4°C	9.8°C	7.5°C	10.4°C
27 April	10.3°C	9.9°C	7.6°C	10.3°C
28 April	10.3°C	10.3°C	7.7°C	10.3°C
29 April	10.4°C	10.3°C	7.7°C	10.4°C
30 April	10.9°C	10.4°C	7.9°C	10.9°C

Llanfairpwllgwyngyll water temp chart in April

Average water temperature in Llanfairpwllgwyngyll in April over a decade

2016	2017	2018	2019	2020
8.3°C	9.3°C	7.3°C	8.7°C	9.1°C

2021	2022	2023	2024	2025
8.9°C	9.1°C	9.1°C	9.2°C	9.5°C

Llanfairpwllgwyngyll sea state in April

Chart comparing the height of waves in Llanfairpwllgwyngyll in April over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in Llanfairpwllgwyngyll in April

Llanfairpwllgwyngyll water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Temperature in neighboring cities

The nearest locations with the average water temperature in April. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Menai Bridge	8.6°C	4.7°C	10.9°C
Bangor	8.6°C	4.6°C	11.1°C
Penmaenmawr	8.6°C	4.6°C	11.2°C
Moelfre	8.5°C	4.8°C	10.6°C
Caernarfon	9.2°C	5.6°C	11.7°C
Newborough	9.2°C	5.6°C	11.7°C
Cwyfan	9.2°C	5.8°C	11.5°C
Cemaes	8.5°C	5.3°C	10.3°C
Llansantffraid Glan Conwy	8.6°C	4.5°C	11.2°C
Rhosneigr	9.1°C	5.9°C	11.3°C

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Our report for Llanfairpwllgwyngyll is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature