Westbury to Warminster via Imber Range walk

Met Office Forecast

South West England

Windy with rain followed by blustery showers.

Today:

A wet start with outbreaks of rain, heavy at times, moving east across all parts. The rain gradually clearing through the afternoon with blustery showers following from the west. Maximum Temperature 11C.

Tonight:

Any remaining rain will clear the east through the evening with showers then persisting overnight. It will be windy with gale force gusts around the coasts. Minimum Temperature 4C.

Friday:

Windy with sunny spells and scattered showers at first. Showers easing into the afternoon before more persistent rain arrives later in the day. Feeling chilly in the wind. Maximum Temperature 9C.

Outlook for Saturday to Monday:

Remaining unsettled and rather cold through the weekend. It will often be windy with further showers or longer spells of rain. Drier and brighter on Monday.

Day 6-7 and Week 2:

Following the current very unsettled spell, early next week will probably become less windy generally with some longer drier and brighter spells with local frost and fog. However, it will probably turn generally more unsettled and milder again from around mid-week as further bands of rain and strong winds edge in from the west. Thereafter it looks as if unsettled and sometimes windy conditions will dominate for the rest of the period. Most of the rain will probably be in the west with drier spells more likely in the east and southeast. Snow is likely at times in the north, mainly on high ground. There remains a small chance of some longer colder, dry spells at times, with an increased risk of both frost and fog.

Week 3 and 4:

Confidence is low throughout this period. Changeable and sometimes windy conditions seem more likely through late December, with the wetter weather in the west and longer drier spells in the east. By the time we go into January, longer spells of more widely dry, quiet and bright weather are possible, especially for southern and central areas, with the northwest more likely to remain unsettled. Temperatures should be near to or somewhat above average overall, but with the usual day to day variations. However in quieter spells, it is likely to be colder generally, with an increased risk of frost and fog.

Met Office : South West England : 2019-12-12T02:31:07

Daylight : Wiltshire

Data: US Navy Observatory

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, and, (ii) if there are hills on the horizon.
• Of course, you need a cloudless night as well!
• Data: US Navy Observatory