At 13:20 out of the 11 closest online personal weather stations located near to me, so within 2 miles, 2 stations are reporting UV4, 1 station is reporting UV6, and 8 stations are reporting UV5!

So its pretty strong today, and on the strength of those reports I'm going back out!

I recorded 3.7 today with a Davis VP2 UV sensor less than  1 year old. I would seriously doubt any reading over 5, even for the southwest at the moment, bearing in mind the figure has probably been rounded up.

 

I recorded 3.7 today with a Davis VP2 UV sensor less than  1 year old. I would seriously doubt any reading over 5, even for the southwest at the moment, bearing in mind the figure has probably been rounded up.

 

Thanks for the info guys forestedge/bertwhistle.

Yesterday I searched for Davis weather stations near to me and found 4.

3 within 2 miles and 1 within 3 miles of me.

Today all four of them have a UV of 4 currently at 12:48. I dont know wether it matters but 2 are Davis Vantage Vue and the other 2 are Davis Vantage PRO2. They're not giving me the exact measurement though just UV4 so possibly being rounded up.

I'll keep my eye on these stations and look for consistency between them.

Thanks for the info guys forestedge/bertwhistle.

Yesterday I searched for Davis weather stations near to me and found 4.

3 within 2 miles and 1 within 3 miles of me.

Today all four of them have a UV of 4 currently at 12:48. I dont know wether it matters but 2 are Davis Vantage Vue and the other 2 are Davis Vantage PRO2. They're not giving me the exact measurement though just UV4 so possibly being rounded up.

I'll keep my eye on these stations and look for consistency between them.

Both Davis stations use the same sensor although they have been modified/improved over the years. I knew my original one was failing when it started spiking at 12 for no reason! 

Most sites seem to round up the UV level which is consistent with met office forecasts.

]I would think 4 was a possible in the right conditions, but even with the sun equivalent in height to mid-September, 5 seems unlikely.

In the spring UV levels can be higher due to more patchy ozone layer.

It's the other way round - there's far more ozone floating around in the spring than in the autumn.

The following dates have the same sun angle, but you're far more likely to have higher UV on the latter date:

28th Feb - 14th Oct

28th Mar - 15th Sep

28th Apr - 15th Aug

The daily ozone charts show this well:

https://ozonewatch.gsfc.nasa.gov/monthly/monthly_2018-03_NH.html

6.0 yesterday.....in Gibraltar. I mention it for a moment's cheer in yet another dull, wet morning.

Yesterday all 4 of the Davis weather stations near me (within 3 miles) had UV5 at 12:45. They're rounding up/down so it was at least 4.5.

Yesterday all 4 of the Davis weather stations near me (within 3 miles) had UV5 at 12:45. They're rounding up/down so it was at least 4.5.

Great to hear of your spring sunshine, Larry!

44° elevation in that hazy sun out there.

Its getting up there now clearly. Meto have Torquay and Exeter down for UV4 this week on Tuesday, Thursday, Friday, & Saturday. While Weymouth manages a UV4 everyday this week from Tuesday. Portsmouth & Cowes, Thursday, Friday, Saturday.

Brighton, Eastbourne, Folkestone, Dover manage UV4 on Friday and Saturday. Seems that the higher UV rates increase along the south coast west to east as the week progresses.

City of London UV4 Friday & Saturday.

Oxford UV4 on Friday.

Cambridge & Great Yarmouth UV4 Friday & Saturday.

Norwich UV4 Friday.

King's Lynn UV4 Friday, Saturday.

Shrewsbury UV4 Thursday.

Caernarfon, Colwyn Bay, Liverpool, Blackpool, Morecambe, Durham, Newcastle, Carlisle, Lockerbie, Glasgow, Edinburgh, St Andrews, Leuchars, UV4 Thursday.

So I was working up the country and became pretty shocked at the predictions for this week. These automated forecasts change multiple times a day so I don't know what's going to happen at the end of this week but a prediction for UV4 as far north as Leuchars I wasn't expecting that.

EDIT: Found a UV5 prediction for Dieppe on Friday, 67 miles from Hastings/Eastbourne.

Edit 2: Forgot to mention earlier that most places with UV4 are on or near the coast, Birmingham, Sheffield, Manchester, York, all have UV3.

Its getting up there now clearly. Meto have Torquay and Exeter down for UV4 this week on Tuesday, Thursday, Friday, & Saturday. While Weymouth manages a UV4 everyday this week from Tuesday. Portsmouth & Cowes, Thursday, Friday, Saturday.

Brighton, Eastbourne, Folkestone, Dover manage UV4 on Friday and Saturday. Seems that the higher UV rates increase along the south coast west to east as the week progresses.

City of London UV4 Friday & Saturday.

Oxford UV4 on Friday.

Cambridge & Great Yarmouth UV4 Friday & Saturday.

Norwich UV4 Friday.

King's Lynn UV4 Friday, Saturday.

Shrewsbury UV4 Thursday.

Caernarfon, Colwyn Bay, Liverpool, Blackpool, Morecambe, Durham, Newcastle, Carlisle, Lockerbie, Glasgow, Edinburgh, St Andrews, Leuchars, UV4 Thursday.

So I was working up the country and became pretty shocked at the predictions for this week. These automated forecasts change multiple times a day so I don't know what's going to happen at the end of this week but a prediction for UV4 as far north as Leuchars I wasn't expecting that.

EDIT: Found a UV5 prediction for Dieppe on Friday, 67 miles from Hastings/Eastbourne.

Edit 2: Forgot to mention earlier that most places with UV4 are on or near the coast, Birmingham, Sheffield, Manchester, York, all have UV3.

Leeds has UV4 for Thursday. Not sure when the first UV4 typically happens though. 

Its was a terribly dull March, but when the sun is forecast to shine, now in early April, UV 4 is present.  These forecasts change and go up and down more than a whore's drawers so it may have changed again, but currently forecasting, possibly one of the best days of the year so far:

https://www.metoffice.gov.uk/public/weather/forecast/u10fvgptv#?date=2018-04-04

A UV 5 forecasted for Thursday down here... A reminder summer is not to far away.

Now just a 4 forecast- which is still good for early April, and more conceivable than a 5 yet.

https://www.metoffice.gov.uk/public/weather/forecast/gcp0zn6wn#?date=2018-04-05

MO have us down for a 5 tomorrow, when we haven't had a 4 yet even on the rare bright/sunny days. Seems a bit suspect to me unless there is a particular reason for it...

Not sure how far you are from Newbury TDF but they are expecting a 4 on Thursday. 

https://www.metoffice.gov.uk/public/weather/forecast/gcph3vm8s#?date=2018-04-05

I note many UV forecasts on the south coast are also expecting 4s, so inland, in W Berkshire, that's a good result!

The search for a domestic 5 continues, but in the far SW (Penzance) cloud stops play later in the morning. I tried Weymouth and 4 is forecast there with unbroken sunshine around 1pm. I might check out S Devon. 

Update: Salcombe, and even jersey, only given a 4 at 1pm. We shall see.

Its getting up there now clearly. Meto have Torquay and Exeter down for UV4 this week on Tuesday, Thursday, Friday, & Saturday. While Weymouth manages a UV4 everyday this week from Tuesday. Portsmouth & Cowes, Thursday, Friday, Saturday.

Brighton, Eastbourne, Folkestone, Dover manage UV4 on Friday and Saturday. Seems that the higher UV rates increase along the south coast west to east as the week progresses.

City of London UV4 Friday & Saturday.

Oxford UV4 on Friday.

Cambridge & Great Yarmouth UV4 Friday & Saturday.

Norwich UV4 Friday.

King's Lynn UV4 Friday, Saturday.

Shrewsbury UV4 Thursday.

Caernarfon, Colwyn Bay, Liverpool, Blackpool, Morecambe, Durham, Newcastle, Carlisle, Lockerbie, Glasgow, Edinburgh, St Andrews, Leuchars, UV4 Thursday.

So I was working up the country and became pretty shocked at the predictions for this week. These automated forecasts change multiple times a day so I don't know what's going to happen at the end of this week but a prediction for UV4 as far north as Leuchars I wasn't expecting that.

EDIT: Found a UV5 prediction for Dieppe on Friday, 67 miles from Hastings/Eastbourne.

Edit 2: Forgot to mention earlier that most places with UV4 are on or near the coast, Birmingham, Sheffield, Manchester, York, all have UV3.

Great analysis/ collation of the forecasts Larry; really useful- thanks.

Reading is back online- hooray! Has reached 4.0 today- I've been in the garden, glass of cider, no shirt, rondo Venezziano playing; dozed off twice & had summery flashbacks.