AI-generatedWelwyn Garden City at a glance
- Best time
- May – Sep
- Warmest month
- Jul · 23°
- Sunshine a year
- 1,630 h
- Rain a year
- 663 mm
- Climate
- Maritime
- Time zone
- UTC+0 / UTC+1
- Elevation
- 92 m
Climate in Welwyn Garden City
Welwyn Garden City has a maritime climate with moderate summers and cool, often grey winters. July is the warmest month with average highs of 23 °C, while January is the coolest at 8 °C. With around 1,630 hours of sunshine a year, Welwyn Garden City is moderately sunny; June is the sunniest month with 6.7 hours a day.
Holiday weather through the year
Best time to visit Welwyn Garden City
The best time to visit Welwyn Garden City is from May to September. For sightseeing, day trips and hiking, conditions are most comfortable from May to September. The wettest month is October with 64 mm of precipitation.
Welwyn Garden City through the seasons
How the weather changes over the seasons, with averages for each.
Welwyn Garden City in spring
Mar – May
Fair
- 11–17 °C by day
- 5.4 h of sun a day
- 32 rainy days in all
Welwyn Garden City in summer
Jun – Aug
Good
- 20–23 °C by day
- 6.6 h of sun a day
- 32 rainy days in all
Welwyn Garden City in autumn
Sep – Nov
Fair
- 11–19 °C by day
- 3.7 h of sun a day
- 32 rainy days in all
Welwyn Garden City in winter
Dec – Feb
Poor
- 8 °C by day
- 2.2 h of sun a day
- 33 rainy days in all
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
May – Sep
15–28 °C and not too much rain
Find your perfect month
Tell us what you like and we rate every month in Welwyn Garden City for you.
Your best months: June – August
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Fair
Best time to visit: May – September
A typical day in October
- Morning, 08:00: about 9°
- Midday, 13:00: about 14°
- Afternoon, 16:00: about 14°
- Evening, 20:00: about 12°
- Night, 23:00: about 10°
07:2318:10
Cool evenings: pack a jumper or a jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:02–08:09 · evening 17:23–18:30
- Blue hour
- Morning 06:49–07:02 · evening 18:30–18:44
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in Welwyn Garden City compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 17° at the start of the month to 13° at the end. The days get 1.9 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 17° | 13° |
| Night-time low | 9° | 6° |
| Daylight | 11.7 h | 9.8 h |
What is the weather like in Welwyn Garden City in October?
In October, Welwyn Garden City is cool: daytime highs average 15 °C, and nights cool down to about 8 °C. The sun is scarce, with only about 3.6 hours a day. Rain is frequent, with about 12 rainy days and 64 mm in total. All in all, October is a so-so month for a holiday in Welwyn Garden City.
More details for October
- Daylight
- 10 h 46 min07:23 – 18:10
- UV index
- 2 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 22 km/haverage daily peakAll months
- Cloud cover
- 71 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+1offset from UTC
How the score comes together
- Temperatureweight 50 %67 %
- Sunshineweight 20 %10 %
- Few rainy daysweight 30 %46 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- A jumper for the evenings
- Rain jacket or umbrella
Compare two months in Welwyn Garden City
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
June has the better holiday weather in Welwyn Garden City: score 79 against 49. In June, days are 5 °C warmer than in October. June has 2 fewer rainy days. The sun shines 3 hours longer a day in June.
| Month | October | June |
|---|---|---|
| Holiday weather score | 49 | 79better |
| Daytime high | 15° | 20° |
| Night-time low | 8° | 11° |
| Sunshine | 3.6 h | 6.7 hbetter |
| Rainy days | 12 | 10better |
| Rainfall | 64 mm | 59 mm |
Based on the climate averages 1996–2025.
Welwyn Garden City month by month
The typical weather for every month at a glance.
15January8° · 2.0 h
In January, Welwyn Garden City is cold: daytime highs average 8 °C, and nights cool down to about 2 °C. The sun is scarce, with only about 2.0 hours a day. Rain is frequent, with about 11 rainy days and 53 mm in total. All in all, January is not an ideal month for a holiday in Welwyn Garden City.
Welwyn Garden City in January16February8° · 2.7 h
In February, Welwyn Garden City is cold: daytime highs average 8 °C, and nights cool down to about 2 °C. The sun is scarce, with only about 2.7 hours a day. Rain is frequent, with about 10 rainy days and 47 mm in total. All in all, February is not an ideal month for a holiday in Welwyn Garden City.
Welwyn Garden City in February33March11° · 3.9 h
In March, Welwyn Garden City is cool: daytime highs average 11 °C, and nights cool down to about 3 °C. The sun is scarce, with only about 3.9 hours a day. Rain is frequent, with about 10 rainy days and 44 mm in total. All in all, March is not an ideal month for a holiday in Welwyn Garden City.
Welwyn Garden City in March53April14° · 5.7 h
In April, Welwyn Garden City is cool: daytime highs average 14 °C, and nights cool down to about 5 °C. Expect around 5.7 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 47 mm in total. All in all, April is a so-so month for a holiday in Welwyn Garden City.
Welwyn Garden City in April72May17° · 6.6 h
In May, Welwyn Garden City is mild: daytime highs average 17 °C, and nights cool down to about 8 °C. The sun shines for around 6.6 hours a day. Rain is frequent, with about 11 rainy days and 57 mm in total. All in all, May is a good month for a holiday in Welwyn Garden City.
Welwyn Garden City in May79June20° · 6.7 h
In June, Welwyn Garden City is mild: daytime highs average 20 °C, and nights cool down to about 11 °C. The sun shines for around 6.7 hours a day. Rain is frequent, with about 10 rainy days and 59 mm in total. All in all, June is a good month for a holiday in Welwyn Garden City.
Welwyn Garden City in June77July23° · 6.7 h
In July, Welwyn Garden City is warm: daytime highs average 23 °C, and nights cool down to about 13 °C. The sun shines for around 6.7 hours a day. Rain is frequent, with about 11 rainy days and 59 mm in total. All in all, July is a good month for a holiday in Welwyn Garden City.
Welwyn Garden City in July76August22° · 6.3 h
In August, Welwyn Garden City is warm: daytime highs average 22 °C, and nights cool down to about 13 °C. Expect around 6.3 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 63 mm in total. All in all, August is a good month for a holiday in Welwyn Garden City.
Welwyn Garden City in August76September19° · 5.1 h
In September, Welwyn Garden City is mild: daytime highs average 19 °C, and nights cool down to about 11 °C. Expect around 5.1 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 48 mm in total. All in all, September is a good month for a holiday in Welwyn Garden City.
Welwyn Garden City in September49October15° · 3.6 h
In October, Welwyn Garden City is cool: daytime highs average 15 °C, and nights cool down to about 8 °C. The sun is scarce, with only about 3.6 hours a day. Rain is frequent, with about 12 rainy days and 64 mm in total. All in all, October is a so-so month for a holiday in Welwyn Garden City.
Welwyn Garden City in October27November11° · 2.3 h
In November, Welwyn Garden City is cool: daytime highs average 11 °C, and nights cool down to about 5 °C. The sun is scarce, with only about 2.3 hours a day. Rain is frequent, with about 11 rainy days and 63 mm in total. All in all, November is not an ideal month for a holiday in Welwyn Garden City.
Welwyn Garden City in November14December8° · 1.8 h
In December, Welwyn Garden City is cold: daytime highs average 8 °C, and nights cool down to about 2 °C. The sun is scarce, with only about 1.8 hours a day. Rain is frequent, with about 11 rainy days and 57 mm in total. All in all, December is not an ideal month for a holiday in Welwyn Garden City.
Welwyn Garden City in DecemberClimate in detail
Year & climate tableWarmest in July: 23°
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Welwyn Garden City
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Cold 0–8°
- Cool 8–15°
CoolOctober: nights around 8°. A duvet at night and a jumper for the evening.
The coolest nights are in February (2°), the warmest in July (13°). Nights fall below 8 °C on average from November to April, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 15 | 8° | 2° | 2.0 h | 11 | 53 |
| FebruaryFeb | 16 | 8° | 2° | 2.7 h | 10 | 47 |
| MarchMar | 33 | 11° | 3° | 3.9 h | 10 | 44 |
| AprilApr | 53 | 14° | 5° | 5.7 h | 11 | 47 |
| MayMay | 72 | 17° | 8° | 6.6 h | 11 | 57 |
| JuneJun | 79 | 20° | 11° | 6.7 h | 10 | 59 |
| JulyJul | 77 | 23° | 13° | 6.7 h | 11 | 59 |
| AugustAug | 76 | 22° | 13° | 6.3 h | 11 | 63 |
| SeptemberSep | 76 | 19° | 11° | 5.1 h | 9 | 48 |
| OctoberOct | 49 | 15° | 8° | 3.6 h | 12 | 64 |
| NovemberNov | 27 | 11° | 5° | 2.3 h | 11 | 63 |
| DecemberDec | 14 | 8° | 2° | 1.8 h | 11 | 57 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
51.80° N, 0.21° W · 92 m · Europe/London
Sunshine1,630 hours a year
Sunshine hours in Welwyn Garden City
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 3.6 of 10.8 hours of daylight in Welwyn Garden City, 33 % of the daylight hours.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
Rain663 mm a year, most in October
Rain in Welwyn Garden City: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Welwyn Garden City has about 12 rainy days with 64 mm of rain in total.
UV indexUp to 7 in June
UV index in Welwyn Garden City
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 2 · lowLittle protection needed; sunglasses on bright days.
The sun is strongest in June (UV 7).
Minutes until sunburn in October
- Very fair skin
- about 70 min
- Fair skin
- about 90 min
- Light brown skin
- over 2 h
- Olive skin
- over 2 h
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind & cloudsWindiest in February: 24 km/h
Wind and clouds in Welwyn Garden City
How breezy and how cloudy Welwyn Garden City is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Welwyn Garden City typically peaks at 22 km/h during the day: Beaufort 4, moderate breeze.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 71 % of the sky over Welwyn Garden City: mostly cloudy, with about 3.6 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Planning a trip to Welwyn Garden City
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Welwyn Garden City in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Welwyn Garden City has its best school-holiday weather during the summer holidays (score 76) and its weakest during the Christmas holidays (score 15).
- 47
Easter holidays
Mar – Apr
Fair
- 13 °C by day
- 5.2 h of sun a day
- 11 rainy days a month
- 73
May half-term
May – Jun
Good
- 18 °C by day
- 6.6 h of sun a day
- 11 rainy days a month
Good for: Sightseeing & walks
- 76
Summer holidays
Jul – Aug
GoodBest holidays
- 22 °C by day
- 6.4 h of sun a day
- 11 rainy days a month
Good for: Sightseeing & walks
- 49
October half-term
Oct
Fair
- 15 °C by day
- 3.6 h of sun a day
- 12 rainy days a month
- 15
Christmas holidays
Dec – Jan
Poor
- 8 °C by day
- 1.9 h of sun a day
- 11 rainy days a month
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- Short trip – train or car is often quicker
- Distance
- 40 km
- Time zone
- UTC+1
- Jet lag
- Hardly any (under 3 h)
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Good to know: United Kingdom
- Currency
- British Pound (GBP)
- Language
- English
- Sockets
- Type G · 230 V
- Traffic
- Drives on the left
- Dialling code
- +44
- Emergency number
- 999 · 112
UK plugs fit
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Compare & alternatives
Compare with another place
Welwyn Garden City compared
Put Welwyn Garden City side by side with another destination.
Welwyn Garden City vs St Albans
In October the holiday weather in Welwyn Garden City and St Albans is about equally good (score 49 vs 50). During the day it is about as warm in St Albans as in Welwyn Garden City.
| in October | Welwyn Garden City | St Albans |
|---|---|---|
| Holiday weather score | 49 | 50 |
| Daytime high | 15° | 15° |
| Sunshine | 4 h | 4 h |
| Rainy days | 12 | 12 |
| Best time | May – Sep | May – Sep |
Through the year
Best places in the country
United Kingdom in October: the best places
In October, Welwyn Garden City ranks 21 among the 31 nearest destinations in this country.
- Weybridge16°60
- 2London16°57
- 3Marlow15°56
- 4Slough16°55
- 5Henley-on-Thames15°55
- 6Watford16°54
- 7Woking16°54
- 8Guildford16°54
- 21Welwyn Garden CityThis page15°49
Places nearby4 places within 18 km
Near Welwyn Garden City
Other destinations close by.
Places with a similar climatee.g. Doncaster and Lincoln
Places with a climate like Welwyn Garden City
Destinations whose weather through the year is closest to Welwyn Garden City's – good alternatives.
Frequently asked questions about Welwyn Garden City
When is the best time to visit Welwyn Garden City?
The best time to visit Welwyn Garden City is from May to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in Welwyn Garden City?
July is the warmest month, with average highs of 23 °C and nights around 13 °C. January is the coolest month at 8 °C.
When does it rain most in Welwyn Garden City?
The wettest month is October with 64 mm of precipitation. The driest month is March with 44 mm.
How many hours of sunshine does Welwyn Garden City get?
Welwyn Garden City gets around 1,630 hours of sunshine a year. The sunniest month is June with 6.7 hours a day; in December there are 1.8 hours a day.
What time zone is Welwyn Garden City in?
Welwyn Garden City is on UTC+0 in January and UTC+1 in July.
Which school holidays are best for Welwyn Garden City?
Welwyn Garden City has its best school-holiday weather during the summer holidays (score 76) and its weakest during the Christmas holidays (score 15). Holiday ratings (0–100): Easter holidays 47, May half-term 73, summer holidays 76, October half-term 49, Christmas holidays 15.