We’re St Nicholas Weather
St Nicholas Weather is a hyperlocal weather station and climate project recording conditions in St Nicholas, a village in the Vale of Glamorgan, Wales.
The project combines observations from instruments that collect data on temperature, humidity, atmospheric pressure, wind, rainfall and solar radiation, with a growing archive of our weather data, photographs, and analysis of notable weather events.
Observations have been archived since November 2021, which provides an increasingly detailed record of the weather conditions at the site and its unique microclimate on the ridge slopes of the Dyffryn Basin.

Current conditions
Waiting for station data…
Temperature · last 24 hours
5-min aggregatesPressure · last 24 hours
Sea-level / relativeWind speed · last 24 hours
km/hHumidity · last 24 hours
% RHWind direction · last 24 hours
degreesRain rate · last 24 hours
mm/hRainfall · last 24 hours
mmSolar radiation · last 24 hours
W/m²Dew point · last 24 hours
°C · calculatedFeels like · last 24 hours
°C · calculatedFrequently Asked Questions
Where is the weather station located?
St Nicholas, Vale of Glamorgan, at approximately 104 m above sea level, on a small country lane called Dyffryn Lane.
How often is the live weather data updated?
We push data to WOW-BE, our API provider, at the minimum possible interval of one minute. The webpage also checks for new observations every minute.
Is St Nicholas Weather an official weather station?
No, we’re an independent weather station. This provides a unique local record that complements official Met Office observations.
When producing reports, we validate our observations where possible by comparing them with independent nearby stations, including statistical correlation, and use official datasets such as those from the Met Office to provide wider context.
Does St Nicholas Weather use GenAI or other forms of artificial intelligence?
Yes. St Nicholas Weather uses tools developed by OpenAI to support data analysis, research, visualisation, report preparation and website development.
AI is used as a supporting tool under human oversight; it does not generate our weather observations or replace the underlying data. Read more about how we use Generative AI