Washing Line Drying Forecast

See the washing line drying forecast for your nearest town for the next few days, scored out of 10 so you can decide whether to put the washing out on the line or dry it indoors. Further down there is a when to plant guide from the RHS, month by month.

Is it a good drying day near you?

Example day, not a forecast

An example October day

7/10Good drying day: light items dry well, heavy cottons may need finishing indoors
  • Highest temperature: 14°C
  • Average humidity: 65%
  • Average wind: 4.0 m/s (9 mph)
  • Rain: 0.0 mm, in 0% of daytime hours

Humidity 2.7/4 + wind 2.4/3 + temperature 2.0/3 = 7.1, × 1.0 for no rain = 7.1, rounded to 7.

Estimates for general information only, not advice. See Important information below.

Forecast data from MET Norway (api.met.no), licensed under CC BY 4.0. Scores are worked out on this page from that data using the formula below.

How the drying score works

Each day is scored from the forecast for the daytime hours, 8am to 5pm GMT (9am to 6pm in British Summer Time). The three weather parts are added up, then rain is applied.

PartPointsHow it is worked out
Humidity0 to 44 points at 55% or lower, falling evenly to 0 at 85% or higher
Wind0 to 3Rises evenly from 0 in still air to 3 at 5 m/s (about 11 mph) or more; 2 above 11 m/s (about 25 mph), when washing blows about
Temperature0 to 30 at 2°C or colder, rising evenly to 3 at 20°C or warmer (highest temperature of the day)
Rain× dry shareThe total is multiplied by the share of daytime hours with no rain forecast. A day with 1 mm or more of rain is capped at 5, and a day with rain in half its hours or more is capped at 2

Humidity carries the most weight because the Royal Meteorological Society notes that clothes can dry faster on cold, dry days than on warm, humid ones, and that wind speeds up drying (MetMatters, 25 July 2024). The thresholds are our own. Checked 16 October 2026.

What each score means

ScoreWhat to expect
9 to 10Excellent drying day: get the washing out in the morning
7 to 8Good drying day: light items dry well, heavy cottons may need finishing indoors
5 to 6Fair: worth it for lighter loads, keep an eye on the sky
3 to 4Poor: slow drying, use a covered spot or dry indoors
0 to 2Dry indoors: rain or damp air for much of the day

Drying tips for winter and indoors

  • Hang washing out in the morning; the sun is usually strongest between 10am and 2pm.
  • A cold, dry, breezy day can beat a warm, muggy one, so check the humidity, not just the temperature.
  • Bring it in before dusk, as dew or frost will make it damp again.
  • Use the fastest spin your fabrics allow; synthetics dry faster than cotton and wool.
  • A covered area with open sides, such as a car port, keeps rain off while the air still moves.
  • Indoors, drying laundry adds moisture to the air. Dry it outside where you can, and open windows from time to time when you dry it inside.

Sources: Royal Meteorological Society, Ten ways to dry laundry outside all year round (25 July 2024); OHID, MHCLG and UKHSA, Understanding and addressing the health risks of damp and mould in the home (updated 1 April 2026). Checked 16 October 2026.

When to plant: vegetables and fruit month by month

A short version of the Royal Horticultural Society’s monthly grow-your-own jobs. Follow the month link for the full list and the conditions for each crop.

MonthSowPlant
JanuaryUnder cover: broad beans in pots, early lettuces, summer cabbages and cauliflowers, spinach, salad onions, turnips; onion seed in a heated propagatorBare-root fruit trees and bushes, if the soil is not frozen
FebruaryUnder cover from mid-February: tomatoes, chillies, cucumbers, aubergines, peas. Outdoors only on light soil in mild areas: broad beans, carrots, parsnips, beetroot, lettuces, radish, spinachFruit trees, bushes and canes if the soil is not waterlogged or frozen; garlic and shallots on light soils; Jerusalem artichokes
MarchOutdoors if conditions allow: broad beans, peas, carrots, parsnips, beetroot, lettuces, radish, leeks, spinach, summer cabbage. Indoors: tomatoes, sweet peppers, cucumbers, aubergines, celeryOnion and shallot sets, asparagus crowns, potted currants, gooseberries and raspberries; last chance for bare-root fruit trees
AprilOutdoors: beetroot, carrots, Swiss chard, lettuce, leeks, radish, peas, spring onions. Indoors: courgettes, squash, pumpkins, tomatoes, sweet peppers, cucumbersSecond early potatoes (first half of the month), maincrop potatoes (second half), onion sets, asparagus crowns, pot-grown fruit
MayOutdoors: French and runner beans, squash, pumpkins, sweetcorn. Indoors: melons, ridge cucumbersTomatoes, courgettes and pumpkins once the risk of frost has passed; harden off young plants for 10 to 14 days first
JuneBeetroot, lettuce, radish, pak choi, French and runner beans, peas, sweetcorn, calabrese, turnipsTomatoes, cucumbers, courgettes, celery, celeriac, winter brassicas; sweet peppers once frost risk has passed
JulySpring cabbage, turnips, pak choi, chicory, fennel, autumn and winter salads; carrots under fleece; last French and runner beans (south of England)Leeks and winter brassicas, if not already planted out
AugustIn the south of England: summer lettuce, radish, rocket, spring cabbage, turnips, pak choi, overwintering onionsRooted strawberry runners
SeptemberSpinach, winter lettuce, rocket, salad leaves; green manures on bare groundNew strawberry beds, overwintering onion sets, spring cabbages
OctoberOverwintering broad beans in mild areas (under cover in colder ones); overwintering peas in mild areasGarlic, overwintering onion sets, spring cabbages, pot-grown fruit
NovemberOverwintering broad beans outdoors or under cloches in mild areas, or in pots under cover in cold areasGarlic; new fruit trees and bushes unless the ground is frozen or waterlogged
DecemberNothing listedShallots and garlic in mild areas with well-drained soil; new fruit trees and bushes unless the ground is frozen or waterlogged

Source: RHS Grow Your Own, monthly jobs pages (rhs.org.uk), checked 16 October 2026. “Under cover” means a greenhouse, cold frame or similar.

How it works and where the numbers come from

The forecast data comes from MET Norway’s Locationforecast service (api.met.no), which covers the whole of the UK and is updated throughout the day. For each day we use the highest temperature, the average humidity and wind, and the amount of rain in the daytime hours (8am to 5pm GMT, or 9am to 6pm in British Summer Time).

We created a score based on our own formula. Humidity scores the highest, with up to 4 points, because according to the Royal Meteorological Society, clothes can dry faster on cold and dry days than on warm and humid days (MetMatters, July 2024). Wind scores up to 3 points and temperature up to 3 points. The score is then cut by the share of daytime hours with rain predicted. The score is capped at 2 if rain falls in half of the hours or more.

Worked example

Assume an October day with temperatures reaching a high of 14°C, average humidity of 65%, a steady wind of 4m/s (about 9 mph) and no precipitation at all. The scores for this day are: humidity 2.7/4, wind 2.4/3 and temperature 2.0/3. Adding them up gives 7.1, which – with no precipitation – rounds to a total score of 7 out of 10: a good drying day. With humidity of 88% and precipitation in 60% of its daytime hours, this day would score 2.

FAQ

Can washing dry outside in winter?

Yes, if the air is dry and there is a breeze. In cold weather the water evaporates more slowly, but it still dries. Hang it out in the morning. The sun is usually at its strongest between 10am and 2pm. Bring it in before dusk to prevent it from getting wet again from dew.

Why does a breezy day score higher than a still, warm one?

The Royal Meteorological Society notes that wind speeds up evaporation, even on cooler days.

Is it a problem to dry clothes indoors?

Drying clothes in your home adds moisture to the air. Government advice on dealing with damp and mould lists drying clothes, alongside cooking and showering, as everyday sources of moisture in the home. It is suggested that wherever possible clothes should be dried outside, and that from time to time windows should be opened.

How far ahead does the forecast go?

Depending on how much hourly data is available for your location, the forecast typically covers 2-4 days and is most reliable for the next day or two. Check back on the morning itself for an updated forecast.

Important information

This tool gives general information and estimates only. It is not financial, tax, legal, medical or other professional advice, and it does not take your personal circumstances into account.

Forecasts can be wrong and change through the day. Forecast data comes from MET Norway and is provided as is, without any guarantee.

The figures are based on the published sources and dates shown on this page. Prices, rates and rules change, so they may be out of date by the time you read this. Check them with the supplier, provider or official source, or ask a qualified professional, before you make a decision.

The AI-written explanation is produced automatically by Anthropic’s Claude from the figures on this page. It can contain mistakes and should not be relied on.

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