Cool
Average highs are around 18°C, so pack for cooler days.
September verdict
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 4.8h per day, so this is not one of the brighter months. Rainfall averages 68mm, which is relatively low for holiday planning.
Monthly averages
Temp
18°C
Rain
68mm
Sun
4.8h
Sea
17°C
Weather score
35
Poor
Cool
Average highs are around 18°C, so pack for cooler days.
Drier
Rainfall averages 68mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 4.8h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 17°C, so the water can feel cool.
Map
Compare Lyme Regis, United Kingdom with nearby places by weather score, rain, sun, temperature, and swim conditions.
September18°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
September68mm average rain
September sits near Lyme Regis' yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsFebruary to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September4.8 hours average sun
September sits close to Lyme Regis' yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
September17°C average sea
September is one of Lyme Regis' warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to October
Sea temperatures are usually near 16°C in this stretch, so swimming comfort is at its strongest.
September35 weather score
September sits close to Lyme Regis' yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
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