Morden Hall Park (NT) and Abbey Mills Short Walk

London hourly weather (Open Meteo)

Sunset: 17:14. Dusk: 17:48. Dark: 18:27. Moon 94% (19:33 to dawn)

Updated: Mon, 20-Jan at 08:36

	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21
Today			0%	0%	3%	0%	0%	3%	3%	0%	0%	0%	0%	0%	0%	0%
Tue, 21 Jan	🌫 0%	🌫 0%	🌫 0%	🌫 0%	🌫 0%	0%	0%	0%	0%	0%	0%	0%	3%	0%	0%	🌫 3%
Wed, 22 Jan	🌫 20%	🌫 28%	37%	43%	🌫 42%	38%	33%	28%	23%	20%	20%	22%	23%	23%	22%	20%
Thu, 23 Jan	5%	5%	5%	5%	6%	6%	8%	11%	15%	19%	23%	26%	28%	28%	26%	24%
Fri, 24 Jan	28%	32%	38%	44%	49%	53%	55%	53%	49%	43%	37%	31%	28%	27%	27%	27%
Sat, 25 Jan	44%	47%	50%	53%	56%	57%	58%	58%	57%	56%	54%	52%	49%	47%	44%	42%
Sun, 26 Jan	24%	22%	21%	20%	19%	18%	18%	18%	19%	20%	21%	22%	24%	25%	27%	29%
Mon, 27 Jan	50%	53%	55%	58%	60%	62%	63%	50%	42%	35%	32%	30%	29%	27%	26%	26%
Tue, 28 Jan	32%	34%	35%	35%	31%	26%	23%	25%	30%	32%	30%	27%	23%	19%	16%	13%
Wed, 29 Jan	29%	27%	25%	23%	21%	19%	19%	21%	24%	26%	28%	29%	29%	26%	22%	19%
Thu, 30 Jan	19%	21%	22%	24%	26%	28%	29%	29%	29%	28%	27%	27%	26%	25%	25%	24%
Fri, 31 Jan	23%	24%	26%	27%	28%	29%	29%	27%	25%	22%	19%	16%	13%	12%	11%	11%
Sat, 01 Feb	10%	10%	11%	11%	12%	12%	13%	14%	15%	16%	16%	17%	16%	14%	12%	10%
Sun, 02 Feb	3%	3%	3%	3%	3%	3%	3%	4%	6%	7%	8%	9%	10%	10%	9%	8%
Mon, 03 Feb	13%	14%	14%	15%	15%	16%	16%	16%	16%	16%	16%	16%	16%	16%	15%	15%
Tue, 04 Feb	13%	12%	12%	11%	10%	10%	10%	11%	12%	14%	16%	18%	19%	20%	20%	20%

Percentages are the chance of rain.

Weather data by Open-Meteo

London hourly weather (Met Office)

Sunset: 17:14. Dusk: 17:48. Dark: 18:27. Moon 94% (19:33 to dawn)

Updated: Sat, 15-Feb at 22:00

	06	09	12	15	18	21
Sun, 16 Feb	10%	10%	10%	9%	9%	6%
Mon, 17 Feb	1%	1%	3%	3%	4%	5%
Tue, 18 Feb	5%	4%	4%	5%	5%	5%
Wed, 19 Feb	5%	5%	5%	4%	2%	4%
Thu, 20 Feb	9%	11%	11%	10%	11%	8%
Fri, 21 Feb	6%	6%	8%	11%	12%	16%
Sat, 22 Feb	13%	12%	13%	13%	9%	10%

Percentages are the chance of rain.

Weather data by Met Office

Regional weather (Met Office)

Sunset: 17:14. Dusk: 17:48. Dark: 18:27. Moon 94% (19:33 to dawn)

Updated: Sat, 15-Feb at 23:38

South East England

Cold and cloudy with patchy rain, mainly across northeastern parts.

• Remaining cloudy this evening and overnight with further outbreaks of patchy rain, mainly in the north and east, this possibly falling as sleet at times
• Skies may briefly clear in the far west of the region towards dawn
• Cold
• Minimum Temperature 2C

Sunday:

• Largely cloudy
• Many places remaining dry, although there is a chance of the occasional shower in northeastern parts by day
• Winds staying light but freshening around the coast later
• Maximum Temperature 6C

Outlook for Monday to Wednesday:

• Cloudy and mostly dry through the period with a chance of bright or sunny spells, especially Tuesday and Wednesday
• Cold initially, milder Wednesday
• Breezy at times, particularly for coastal areas

UK Day 6-7 and week 2

• Atlantic frontal systems likely spread across the UK from the west at the start of this period
• These will bring spells of rain to many parts of the UK, although the heaviest rainfall will probably be in western areas
• Some eastern areas could end up largely dry
• Strong winds are also likely at times, especially along coasts
• Through the second half of this period, toward the turn of the month, periods of unsettled weather are expected at times, with Atlantic weather systems continuing to move eastwards across the UK - these could bring heavy rain and strong winds at times
• Some drier, brighter periods with showers are likely between systems
• Temperatures will most likely be above average

UK Week 3 and 4

• Unsettled during early March with Atlantic frontal systems spreading across the UK from the west
• These will bring spells of rain and strong winds at times, interspersed by some drier, brighter periods between systems
• Into the middle of the month, drier, more settled conditions will probably become more prevalent, especially in the south
• Temperatures are most likely to be above average

Weather data by Met Office

London Air Quality (Pollen and UV)

Updated: Sat, 15-Feb at 23:36

Key : Low Medium High Very High

Pollens

These pollens are shown (in season):

• Grass
• Alder and birch (trees)
• Mugwort and Ragweed (weeds)

When out walking, wraparound glasses, a disposable or washable facemask, and being at the front of the group, all help.

Other forecasts: Met Office, University of Worcester

UV and Air Quality

The UV forecast takes account of cloud cover.

"Air Q", the European Air Quality index, is a mix of dust/particulates, ozone, sulphur and nitrous oxides

Data

Weather data by Open-Meteo and CAMS ENSEMBLE

London Visibility

Updated: Mon, 20-Jan at 08:36

Visibility in km. Above 50km is 'good'. Humidity and air pollution make it worse. Theoretical maximum is 300km/200 miles in clean dry polar air.

On the South Downs, at ~ 170m/500ft, the horizon is is ~ 45km/30 miles away. On a mountain at 1,000m/3,000ft, it is ~ 160km/100 miles away. Formula: horizon in km = √ (13 x altitude in m)

Weather data by Open-Meteo

London daylight

Notes

• Max Height (solar noon) is when the sun is highest in the sky.
• Day length is dawn to dusk as there is enough light for walking for at least 30 minutes before sunrise and after sunset, even on an overcast day.
• At 'Light' (nautical dawn) the horizon becomes visible. At 'Dawn' (civil dawn) there is enough light to read, and drivers can switch their lights off. Finally the sun rises.
• After sunset, there is still enough light to read until 'Dusk' (civil dusk) or lighting up time for drivers. The horizon is still visible until 'Dark' (nautical dusk).
• Times will vary if there is a hill on the horizon.

London moonlight

Moonlight chart for walking at night.

Notes

• The percentage of the moon which is illuminated doesn't vary much with location.
• A full moon is not just bigger, it is much brighter. A quarter moon (1/2 disk visible) give less than 5% of the illumination of a full moon. You can walk with a quarter 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
• Sunlight is ~ 1,000,000 times brighter than moonlight.
• Of course, you need a cloudless night as well!

London weather (Accuweather)