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• What will the festive forecast bring for you?

  #WeatherAware⚠️ pic.twitter.com/u02C9Z4vtN — Met Office (@metoffice) December 24, 2025   https://www.youtube.com/watch/W7zvJ1W4oNs?start=0 Christmas Day is expected to be mostly dry with variable amounts of cloud and sunny spells in places. A few light showers are possible, particularly near

• Guide to our Data Collections

  Governmental involvement. 1. RETURNS, REGISTERS, LOGS AND SUMMARIES — COLLATED DATA  Daily Registers  Climatological Returns  Lustrum forms  Ship, light vessel and light house logs Rainfall cards  Ten year rainfall books Daily Weather Summaries  Monthly Weather Summaries  British Rainfall  2. PRIVATE WEATHER DIARIES 3. AUTOGRAPHIC RECORDS 4. CHARTS 5. FORECAST INFORMATION 

• PowerPoint Presentation

  conditions taking hold in the August to October period (60% likelihood in NOAA forecast). While forecasts looking this far ahead are inherently uncertain, particularly when issued at this time of year, there is a consistent message emerging from many international modelling centres. Much More Likely Below

• PowerPoint Presentation

  the likelihood of La Niña developing increases. By late autumn (October-November-December period), NOAA Climate Prediction Centre gives a 50- 60 % chance of a short-lived La Niña event while the likelihood of ENSO remaining neutral is around 40 %. In contrast, output from the Australian Bureau

• PowerPoint Presentation

  conditions across the equatorial Pacific. Both NOAA and the Bureau of Metrology in Australia (BoM) have declared that La Niña is present. According to the latest forecasts, from the WMO Global Producing Centres for Seasonal Prediction, La Niña is the most likely outcome over the next few months

• PowerPoint Presentation

  to the Climate Prediction Centre, La Niña conditions are present with a La Niña Advisory issued. All indices are currently negative and point to La Niña conditions with some atmospheric response evident, with these conditions expected to remain over the coming few months, returning to neutral early

• PowerPoint Presentation

  that both oceanic and atmospheric indicators reveal borderline La Niña conditions still remain across the equatorial Pacific. Both NOAA and the Bureau of Metrology in Australia (BoM) state that La Niña is currently present. According to the latest forecasts from the WMO Global Producing Centres

• PowerPoint Presentation

  . There are some mixed signals from various modelling centres regarding the evolution of ENSO later this year. However, ENSO is most likely to remain neutral through the next three months. More information on typical impacts can be found here: https://www.metoffice.gov.uk/research/climate/seasonal-to-decadal/gpc

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  % likelihood in NOAA forecast). While forecasts looking this far ahead are inherently uncertain, particularly when issued at this time of year, there is a consistent message emerging from many international modelling centres. Much More Likely Below Normal Near-Normal Above Normal Likely Likely Much More

• PowerPoint Presentation

  . The latest NOAA Climate Prediction Centre / NCEP statement (PDF) states that: “La Niña is likely to continue through the Northern Hemisphere winter 2020-21 (~95% chance during January-March), with a potential transition during the spring 2021 (~50% chance of Neutral during April-June).” For the next