
Note: if the wind speed is zero, the wind direction (if shown) is that when the wind was last blowing.
Cambridge Computer Laboratory Rooftop Weather at 08:18 PM on 25 Jan 21: Temperature: -0.8 C Pressure: 1012 mBar Humidity: 83 % Dewpoint: -3.3 C Wind: 4 knots from the SW Sunshine: 0.0 hours 16:39 Rainfall: 0.0 mm since 16:39 Summary: humid, freezing cold, light winds
Cambridge Weather
At 20:18 - humid, freezing cold, light winds, -0.8 C
At 20:18 - humid, freezing cold, light winds, -0.8 C
- There is a known issue with the sunlight and rain sensors sometimes over-reporting readings. We are investigating how best to fix this and we should be able to correct archived records once the problem is resolved.
Maps:
Lightning

The dials show the current Cambridge weather readings, as taken on the roof of our building by the DTG Weather Station. Also available as:
Archive data since 1995
- Daily: text or graphs
- Monthly: text or graphs
- All raw data: daily text files (tar.gz archive)
- All raw data: single CSV file (format)
Feedback
Please drop us a line if you discover any inaccuracies in the reported weather data, or if you have general feedback, comments or questions.
Other info
- Inaccuracies in the weather data.
- Implementation of the service.
- Location of the sensors.
- Mailing list for announcements regarding service changes or recording errors.
If you wonder what "Dew Point" means, see here for a simple explanation, or here for more than you want to know.
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