Knebworth to Welwyn Garden City walk

Met Office Forecast

East England

Remaining settled with temperatures rising.

Today:

• Any early mist or fog clearing quickly to leave another warm and dry day with unbroken sunshine for many.
• Coastal areas feeling somewhat cooler with a fresher onshore breeze developing into the afternoon.
• Maximum Temperature 30C.

Tonight:

• Remaining dry, mild and clear.
• Patches of mist and fog are likely into the early hours once again in rural and coastal areas.
• Minimum Temperature 13C.

Thursday:

• Another dry and clear day after early fog lifts with increasingly hot temperatures.
• Coastal areas again seeing cooler conditions with a fresher breeze and perhaps some low cloud developing.
• Maximum Temperature 32C.

Friday to Sunday:

• High pressure continues to bring dry settled weather through the end of the week, with very warm temperatures.
• Overnight mist patches forming, perhaps with coastal low cloud.

UK Day 6-7 and week 2

• This period will see the breakdown of the hot, sunny and dry weather of recent days, with conditions becoming more unsettled across the UK.
• Showers will spread from the west and south next week, sometimes heavy and thundery, though drier periods with sunny spells are still likely between them.
• At the same time, temperatures will gradually decrease to closer to normal for August.
• Later in the period, the more changeable weather will prevail with a risk of heavy showers or thunderstorms continuing, but clear and dry spells in between too.
• Returning to warm or very warm towards the end of the period for much of England and Wales, perhaps becoming locally hot in parts of the south and southeast.

UK Week 3 and 4

• Following a period of unsettled weather, we may see some generally more settled conditions towards the end of August.
• Continuing into September, normal weather can be expected for this time of year.
• This may bring some spells of rain or showers, most likely in the north and west.
• However, periods of dry and sunny weather can be expected in between.
• Temperatures are likely to be above normal, with the chance for some very warm spells.

Met Office : East England : 2022-08-10T00:07:28

Daylight : Hertfordshire

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 : Hertfordshire

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!