Westbury to Warminster via Imber Range walk

Met Office Forecast

South West England

A wet outlook, with frequent rainfall and mild temperatures.

This Evening and Tonight:

Today's rain will clear to the east during the evening. It will be cloudy overnight and dry for a time, before further outbreaks of rain spread into central and eastern areas during the early hours. Minimum Temperature 4C.

Wednesday:

A gloomy start to a cloudy day, with patchy rain, which will become more widespread into the evening as further rain arrives from the southwest. Feeling mild. Maximum Temperature 12C.

Outlook for Thursday to Saturday:

Mostly dry on Thursday, though a few showers in eastern areas. Heavy rain overnight. Scattered showers and strong winds on Friday. Early rain on Saturday, but dry and bright after.

Day 6-7 and Week 2:

After a very cold but bright start to Sunday, rain will move in from the west later. Going into next week, unsettled conditions look likely to dominate, with low pressure systems moving in off the Atlantic. The weather will be changeable. Periods of rain or wintry showers, and strong winds are likely, especially in the west, with brief more settled spells in between. Westerly or southwesterly winds during this period will bring milder temperatures to most areas, but occasional interludes of cold northerly winds are possible. It will be on this boundary between colder and milder airmasses where any snowfall to lower levels could possibly occur. Towards the end of this period, we may see high pressure build over the north of the UK, bringing colder temperatures and wintry outbreaks.

Week 3 and 4:

Although confidence at this range is low, current signals suggest that high pressure could be positioned over the north of the UK during this period. This would likely bring wintry outbreaks and colder than average temperatures to northern areas, as well as increasing the likelihood of more widespread cold spells. Any periods of milder, unsettled weather are more likely to be confined to central and southern areas, where greater than average rainfall is predicted. There is a continued risk of significant snowfall events on the boundary between colder and milder airmasses, with snow possible to low elevations.

Met Office : South West England : 2021-01-26T21:09:31

Daylight : Wiltshire

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 : Wiltshire

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!