Pulborough to Amberley walk

Met Office Forecast

South East England

Dry, sunny and very warm or hot this weekend.

Today:

Any early patchy mist or fog will quickly clear. Then fine, dry and sunny all day. Most places will become very warm or hot, but as a light breeze develops along the coasts, so these locations will remain cooler. Maximum Temperature 31C.

Tonight:

Dry and clear for most of the time, although some patchy cloud may arrive. A little mist and fog may form later tonight as the wind becomes a light easterly. Minimum Temperature 15C.

Sunday:

Dry with long sunny periods, after any initial patchy mist or fog soon disperses. Becoming very warm or hot, although light onshore breezes will keep coastal areas slightly cooler. Maximum Temperature 32C.

Outlook for Monday to Wednesday:

There is an increasing chance of showers or thunderstorms arriving, although mainly Tuesday onwards, and there will still be lots of dry and sunny weather. Warm or very warm.

Day 6-7 and Week 2:

The end of August should see a split in the weather across the UK, with warm, dry, sunny conditions prevailing across many areas, but in particular the southeast. In the northwest conditions will be cloudier with rain followed by periods with sunny spells and showers. The wind may be strong at times too, with temperatures here closer to average. During early September there may be a transition to more unsettled conditions nationwide. However, any rain will be heaviest and most frequent in the northwest, with southeastern parts receiving the longest dry and sunny spells. There is a risk of thundery showers breaking out across the southeast at times. As we head through early September we should see weather patterns become slow evolving again with temperatures near to or above average.

Week 3 and 4:

From early through to the middle of September there is a trend for the weather patterns across the UK to become slow moving with a 'blocked pattern' becoming dominant. At present it is considered most probably that this will cause a tendency for conditions to be most often unsettled, leading to an increase in the chance for above average rainfall through September. However, more settled conditions are also probable at times, especially around the middle of September, with temperatures likely to be near to or slightly above normal for the time of year.

Met Office : South East England : 2019-08-24T01:03:29

Daylight : West Sussex

Data: US Navy Observatory

Moonlight : West Sussex

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