West End and Esher Commons walk

Met Office Forecast

South East England

Risk of heavy showers and thunderstorms overnight.

This Evening and Tonight:

Heavy showers and thunderstorms are expected to continue through the evening and overnight, Generally overcast through much of the night, especially toward the east coast. Feeling warm and humid. Minimum Temperature 16C.

Saturday:

Cloud breaking during the morning to give some bright or sunny spells. Scattered heavy showers and thunderstorms are expected throughout and it will feel humid. Maximum Temperature 26C.

Outlook for Sunday to Tuesday:

Generally cloudy Sunday and Monday with heavy showers or thunderstorms likely, these locally severe. Brighter Tuesday with further thundery showers. Less hot than of late, but still warm and humid.

Day 6-7 and Week 2:

The beginning of this period is likely to be generally unsettled with showers and longer spells of rain at times, potentially becoming heavy in places. There is also a chance that there could be some further thundery weather, although this would most likely be confined towards the east and southeast of the UK. It is likely to be windier than of late, especially in the south and west where there is also a risk of gales. Temperatures should start rather warm for many, despite the spells of unsettled weather. However, temperatures may cool slightly by the end of this period with freshening winds from the northwest likely to create a more widespread risk of gales.

Week 3 and 4:

Although confidence is low for this period, it is likely that conditions will become more changeable with drier and brighter days interspersed with periods of rain and strengthening winds. Temperatures should be around the average for this time of year. Towards the end of this period, there are some tentative signs that high pressure could begin to dominate, especially across the south of the UK, with a return to more settled conditions.

Met Office : South East England : 2020-08-14T14:58:56

Daylight : London

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 : London

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!