Graphics for 2025. Llansadwrn, Anglesey.

Octapent raingauge encrusted with snow.
Llansadwrn (Anglesey) Weather:
Graphical data for 2025
Logo: Llansadwrn Weather - Melin Llynnon, Ynys Môn.

Daily mean temperature
Daily maximum and minimum temperatures
Accumulated spring mean growing air temperature
Daily soil temperature at 30 cm depth
Accumulated 30 cm soil spring growing temperature
Daily rainfall
Monthly rainfall
Accumulatied monthly rainfall
Amount of soil moisture
Net primary production and rate of growth of grass
Comparison of annual grass production 2005 - 2024
Potential evapotranspiration and water balance
Daily sea level pressure
Daily global solar radiation
Sunshine at Valley, Anglesey

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Daily mean temperature 2025

Daily mean temperature at Llansadwrn (Anglesey): © 2025 D.Perkins.

Daily maximum and minimum temperatures 2025

Daily maximum and minimum temperatures at Llansadwrn (Anglesey): © 2025 D.Perkins.

Accumulated mean growing air temperature spring 2025

Daily mean accumulated air temperature at Llansadwrn (Anglesey): © 2025 D.Perkins.

Daily temperature of the soil at 30 cm depth 2025

Daily soil temperature at 30 cm at Llansadwrn (Anglesey): © 2025 D.Perkins.

Accumulated 30 cm soil growing temperature spring 2025

Accumulated 30 cm depth soil growing temperature at Llansadwrn (Anglesey): © 2025 D.Perkins.

Daily rainfall 2025

Daily rainfall at Llansadwrn (Anglesey): © 2025 D.Perkins.

Monthly rainfall 2025

Monthly rainfall at Llansadwrn (Anglesey): © 2025 D.Perkins.

Accumulated monthly rainfall 2025

Accumulated monthly rainfall at Llansadwrn (Anglesey): © 2025 D.Perkins.

Soil moisture percentage 2025

Soil moisture percentage under grass: © 2025 D.Perkins.

Net primary production of grass 2025

Net primary production and growth of the grass ecosystem at Llansadwrn weather station: © 2025 D.Perkins.

Accumulated yields of grass 2004-2025

Potential evapotranspiration and water balance in 2025

Potential evapotranspiration and water balance at Llansadwrn (Anglesey): © 2025 D.Perkins.

Atmospheric msl pressure 2025

Atmospheric msl pressure at 0900 GMT at Llansadwrn (Anglesey): © 2025 D.Perkins.

Daily global solar radiation (MJ m ^-2) 2025

Daily solar radiation in Llansadwrn (midnight to midnight): © 2025 D.Perkins.

Monthly sunshine at Valley (Anglesey) 2025

Monthly sunshine at Valley (Anglesey). Source SYNOP reports RAF Valley.

Acknowledgement

The Met Office at RAF Valley kindly supplied observational data from 1942 to 2011. Current data (provisional) are gathered from SYNOP reports and METAR.

Designed and written by Donald Perkins © 2025

Page first published 18 November 2025.
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