Cool
Average highs are around 15°C, so pack for cooler days.
September verdict
Poor for holiday weather
Average highs are around 15°C, so pack for cooler days. Sunshine averages 3.4h per day, so this is not one of the brighter months. Rainfall averages 177mm, so some wet days are possible.
Monthly averages
Temp
15°C
Rain
177mm
Sun
3.4h
Sea
14°C
Weather score
15
Poor
Cool
Average highs are around 15°C, so pack for cooler days.
Showers
Rainfall averages 177mm, so some wet days are possible.
Limited sun
Sunshine averages 3.4h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 14°C, so the water can feel cool.
Map
Compare Tiree, United Kingdom with nearby places by weather score, rain, sun, temperature, and swim conditions.
September15°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.
September177mm average rain
September is one of Tiree's wettest months, so rain is likely to be a major planning factor.
Driest monthsFebruary and April to July
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September3.4 hours average sun
September sits close to Tiree's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsApril to June
This stretch has the strongest sunshine in the monthly averages.
September14°C average sea
September is one of Tiree's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to October
Sea temperatures are usually near 14°C in this stretch, so swimming comfort is at its strongest.
September15 weather score
September scores below Tiree's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsApril to August
These months have the strongest weather score in the monthly averages.