Balcombe Circular via Ardingly Reservoir walk

Met Office Forecast

South East England

Dry and mostly cloudy overnight. Some clear spells. Patchy frost.

This Evening and Tonight:

A dry and cloudier night, compared to last night, although there will still be some clearer spells around, which will allow for patchy frost and fog to form in places by dawn. Light winds. Minimum Temperature -1C.

Saturday:

Cold start to Saturday with early mist, fog and some frost. A fine day following if rather cloudier although some bright or sunny spells can be expected for most. Maximum Temperature 7C.

Sunday to Tuesday:

Dry and mostly cloudy throughout the period. Some frost and patches of fog overnight where breaks develop in the cloud. Light winds and near average temperatures

UK: day 6-7 and week 2:

A largely cloudy start to this period, with perhaps some isolated fog forming under clear skies in the south, otherwise largely dry and fine here. A risk of some patchy rain in the far west, however, likely to be brighter in the east. A band of rain arrives later into the northwest, accompanied by some stronger winds, tracking southeastwards, with blustery showers following into the northwest, before returning settled by the end of the week. Temperatures likely to be close to average in the south, whereas milder in the north. Settled conditions looking to continue to dominate through the remainder of January, however, rain or showers at times for the north and northwest, with occasional strong winds here. Heading into February there is an increasing likelihood of more unsettled conditions.

UK: week 3 and 4:

Early February is likely to see a continuation of a north/south split with more settled and cloudy weather expected in the south, and generally drier than average, while the north will be more changeable, milder, with some spells of rain. There is an increased likelihood of more unsettled conditions becoming established, with the northwest likely to be the wettest area, but showers or longer spells of rain may spread to most areas at times, with the southeast likely to be the driest. Spells of strong winds are likely to develop more widely at times. Temperatures likely to be near or slightly above average although short lived colder interludes are possible. Any snow likely to be restricted to high ground in the north.

Met Office : South East England : 2022-01-21T12:01:51

Daylight : West Sussex

Day length is dusk to dawn. Times will vary a little if there is a hill on the horizon.

It should still be light enough to read at dawn and dusk, so there will be enough light for walking even earlier (later).

Moonlight : West Sussex

Notes

• The moon's phase or fracillum (percentage of the moon illuminated) doesn't vary much with location.
• A full moon is not just bigger, its much brighter. A half moon ('50%') give less than 5% of the illumination of a full moon. You can walk with a half moon if its high in the sky (after dusk for a growing moon, before dawn for a shrinking moon).
• Sky glow (light reflected by air or clouds) from nearby cities, and especially snow on the ground also effect light levels.
• Times will vary a few minutes, as (i) these figures are for the centre of the county the walk is in, (ii) if there are hills on the horizon, and (iii) if you are on a hill
• Of course, you need a cloudless night as well!