River temperature
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Air temperature
–
Flow rate
Reading
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Maidenhead
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Sewage status (Wargrave)
–
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River conditions (EA boards)
Weather
Next 24 hours
Sun & Moon
🌅 Sunrise
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🌇 Sunset
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Next full moon
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Moonrise: —
Moon reaches 15°: —
Estimated viewing time
Temperatures
Flow rate
Swim stretch
Notes
- This info is aggregated from other publicly available information sources; treat as indicative, not official safety advice.
- Temperature data from just above Shiplake Lock, via publicly available CSV files
- Flow data from the Environment Agency station API at Maidenhead (closest available).
- Sewage discharge status from Thames Water API
- WE ARE NOT A CLUB
- This is very much a work-in-progress, I'll be refining/adding things every now and then, such as weather details, discharge details etc Jon
16OCT26 - Added Sun & Moon card, with next sunrise and sunset, and next full moon with suggested swim date.
06OCT26 - Split the flow rate card, so it includes Reading as well as (original) Maidenhead. Also upgraded to new TW API, as old one was going very patchy.
18FEB26 - Adding new card, to show river boards from EA site, seeing as it's raining so much at the moment
17FEB26 - Added date-driven icons for snow, starting with pancake day! And, possibly less tasteless when sewage is discharging, let's see what we think of that.
08JAN26 - Christmas mode now automatic between 1 Dec to 1 Jan inclusive, then from 2 Jan to end of Feb optional snow, which remembers whether you've toggled it on or off.
25DEC25 - Added Christmas mode! Why didn't I think of that earlier in the month?! It'll be available during December from now on.
08OCT25 - Cleaned up weather forecast, putting it behind a show/hide toggle, also fixing issue with daily vs hourly differences by aggregating rainfall. Also caching for 15 mins rather than requesting every time, to avoiding exceeding Met Office limits.
05OCT25 - Signed up Met Office account and used that to retrieve daily forecast in tiles and hourly forecasts in scroller. Added blatant self-promotion for upcoming gig in the header, because my site my rules.
04OCT25 - Fixed issue with charts not showing enough history; registered domain name and configured DNS/subdomain; expanded notes section.