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CheckWeather UKHelensburgh
Forecast confidence: High · models disagree by 1°C

Helensburgh weather

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Light drizzle,rain likely tomorrow

Met Office, the European and the American model agree on a high near 15° in Helensburgh today. Tomorrow looks light drizzle around 15°, with a 100% chance of rain.

15°12°
15°10°
18°11°
17°13°
15°
16°
Todaymodels agreeTomorrowmodels agreeMondaymodels agreeTuesdaymodels agreeWednesdaymodels agreeThursdaymodels agree
Met OfficeUKMO model
15°
Drizzle
Today 15°·Low 12°·Rain -
EuropeanECMWF
15°
Light drizzle
Today 15°·Low 12°·Rain 100%
AmericanNOAA GFS
14°
Light drizzle
Today 14°·Low 11°·Rain 100%
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Helensburgh weather warnings

Met Office yellow, amber and red warnings for Strathclyde

Checking the Met Office for warnings in force for Strathclyde…

Helensburgh weather in numbers

measured normals and 10 years of recorded weather

Helensburgh swings 16°C across the year, from 18°C highs in June to 2°C lows in January, and December is usually the wettest month in a year that brings about 1500 mm of precipitation. Over 10 years of recorded weather it averages 2 days a year at 25°C or above, 37 frost nights, and rain on 203 days.

Warmest month
June
18°C average high
Coldest month
January
2°C average low
Wettest month
December
1500 mm a year
Comfortable
4 months
May, June, July and August
Residents
13,000
share this forecast
Most accurate here
European
87/100 CheckWeather Score
Warm days
2 days
a year at 25°C or above
Frost nights
37 nights
a year below 0°C
Rain days
203 days
a year with 1 mm or more

Day counts are from the ERA5 reanalysis for Helensburgh’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.

The weather map: all three models at once

Met Office, European, American side by side around Helensburgh and nearby towns.Live rain radar →
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Helensburgh hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Helensburgh 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Light drizzle
15° 12°
models agree
Tomorrow
Light drizzle
15° 10°
models agree
Mon
Light drizzle
18° 11°
models agree
Tue
Drizzle
17° 13°
models agree
Wed
Light drizzle
15°
models agree
Thu
Drizzle
16°
models agree
Fri
Drizzle
16° 11°
models agree
Sat
Partly cloudy
14° 10°
models agree
Sun
Drizzle
15° 10°
models agree
Mon
Drizzle
15° 12°
±4°
Tue
Light drizzle
15° 10°
models agree
Wed
Light rain
18° 11°
±4°
Thu
Light rain
17° 10°
models agree
Fri
Light rain
15°
models agree

Helensburgh, Scotland is at its warmest in Jun (average highs near 18°C) and coldest in Jan (lows around 2°C), with roughly 1500 mm of precipitation across the year. Below, compare what Met Office, European, American forecast for Helensburgh right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United Kingdom before you trust any single number.

Helensburgh climate by month

average daytime high and overnight low across a typical year
Jan
Feb
Mar
Apr
11°
May
17°
Jun
18°
10°
Jul
17°
11°
Aug
17°
12°
Sep
16°
10°
Oct
13°
Nov
Dec

Which forecast is most accurate in Helensburgh?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
87
/100rank #1
90±0.6°C97±1.1 mph7687% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
Met Office logo
Met Office
83
/100rank #2
91±0.5°C94±1.7 mph6581% hitMet Office (United Kingdom)Exeter, United Kingdom
American logo
American
83
/100rank #3
87±0.7°C94±1.8 mph7184% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1887 cities. Lower error means a higher score. See which forecast model is most accurate in United Kingdom, how we measure forecast accuracy, or which model each weather app uses.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United Kingdom? Give each 1 to 5 stars.

Met OfficeUKMO model
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EuropeanECMWF
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AmericanNOAA GFS
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±1°14° to 15°models agree100% to 100% chance
Tomorrow±1°15° to 15°±37%63% to 100% chance
Mon±1°17° to 19°±9%88% to 97% chance
Tuemodels agree17° to 18°models agree65% to 65% chance
Wed±1°15° to 16°±18%39% to 57% chance

The models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.

Sunrise and sunset in Helensburgh

today, local time
Sunrise
06:58
Sunset
19:26
Daylight
12h 28m

Common questions

What's the weather in Helensburgh today?
On this page we show what Met Office, European, American each forecast for Helensburgh today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Helensburgh today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Met Office, European, American for Helensburgh and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Helensburgh?
Over the last 30 days, the European model has been the most accurate for Helensburgh (CheckWeather Score 87/100), ahead of the Met Office at 83. We grade every model against the recorded weather. See the UK accuracy scoreboard for the full method.
What is the warmest month in Helensburgh?
June is typically the warmest month in Helensburgh, with average highs around 18°C.
How cold does Helensburgh get?
The coldest month in Helensburgh is January, when overnight lows average about 2°C.
How much rain does Helensburgh get?
Helensburgh sees roughly 1500 mm of precipitation a year, with December usually the wettest month.

Nearby

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