Ayrshire Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Ayrshire, the United Kingdom in September.

Are you planning a trip a to Ayrshire, the United Kingdom in September and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Ayrshire in September

Ayrshire, the United Kingdom is a region in the United Kingdom. September in Ayrshire generally has mild temperatures, with high precipitation. The month of September is in the summer season.

Temperatures

You can expect mild maximum daytime temperatures of around 16°C (61°F) and nighttime temperatures around 11°C (52°F) in Ayr.

For a closer look at conditions across Ayrshire, the United Kingdom, refer to the map below.

Precipitation

In September, precipitation varies across different areas. From high rainfall in Cumnock with an average of 104 mm (4.1 in) to high rainfall in Lochranza with 144 mm (5.7 in).

Average sunshine

Sunshine is fairly consistent across many areas. Ayr receives about 117 hours of sunlight in September, providing a good balance between sunny spells and cloud cover. If you're after more sunshine hours, take a look at our weather planner for other sun-rich destinations worldwide.

Explore Ayrshire by month

Pick a month to see the average temperature, rainfall and sunshine in Ayrshire — and find the best time to visit. (based on Ayr)

Best Places to Visit in Ayrshire in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Ayrshire.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Ayrshire

What is the weather like in September for some of the most popular destinations in Ayrshire, the United Kingdom?

Temperature range in Ayrshire (September)

Precipitation variation in Ayrshire (September)

Ayr

In September Ayr generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 11°C (52°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
17°C (63°F)
16°C (61°F)
13°C (55°F)
Min temperature
12°C (54°F)
11°C (52°F)
9°C (48°F)
Monthly sun hours
145 hours
117 hours
88 hours
Monthly rainfall
128 mm (5 in)
126 mm (5 in)
164 mm (6.5 in)
Monthly rainy days
18 days
19 days
21 days
Weather conditions

Irvine

In September Irvine generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 11°C (52°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
18°C (64°F)
16°C (61°F)
14°C (57°F)
Min temperature
12°C (54°F)
11°C (52°F)
8°C (46°F)
Monthly sun hours
145 hours
117 hours
88 hours
Monthly rainfall
124 mm (4.9 in)
119 mm (4.7 in)
157 mm (6.2 in)
Monthly rainy days
18 days
19 days
21 days
Weather conditions

Largs

In September Largs generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 10°C (50°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
18°C (64°F)
17°C (63°F)
14°C (57°F)
Min temperature
12°C (54°F)
10°C (50°F)
8°C (46°F)
Monthly sun hours
145 hours
117 hours
88 hours
Monthly rainfall
127 mm (5 in)
122 mm (4.8 in)
161 mm (6.3 in)
Monthly rainy days
19 days
21 days
22 days
Weather conditions

Prestwick

In September Prestwick generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 11°C (52°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
17°C (63°F)
16°C (61°F)
13°C (55°F)
Min temperature
12°C (54°F)
11°C (52°F)
9°C (48°F)
Monthly sun hours
145 hours
117 hours
88 hours
Monthly rainfall
128 mm (5 in)
126 mm (5 in)
165 mm (6.5 in)
Monthly rainy days
18 days
19 days
20 days
Weather conditions

Troon

In September Troon generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 11°C (52°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
18°C (64°F)
16°C (61°F)
13°C (55°F)
Min temperature
12°C (54°F)
11°C (52°F)
9°C (48°F)
Monthly sun hours
145 hours
117 hours
88 hours
Monthly rainfall
128 mm (5 in)
126 mm (5 in)
166 mm (6.5 in)
Monthly rainy days
18 days
19 days
21 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Ayrshire, in the United Kingdom.

Popular cities in September

Day & night temperatures, rainfall and average weather in Ayrshire in September.

City Weather Day temp Night temp Rainfall
Ayr 16°C (61°F) 11°C (52°F) 126 mm (5 in)
Irvine 16°C (61°F) 11°C (52°F) 119 mm (4.7 in)
Largs 17°C (63°F) 10°C (50°F) 122 mm (4.8 in)
Prestwick 16°C (61°F) 11°C (52°F) 126 mm (5 in)
Troon 16°C (61°F) 11°C (52°F) 126 mm (5 in)
Ballantrae 16°C (61°F) 12°C (54°F) 113 mm (4.4 in)

Ayrshire weather in September: frequently asked questions

What is the weather like in Ayrshire, the United Kingdom in September?

Ayrshire, the United Kingdom typically experiences unpleasant weather in September, part of the summer season. Daytime highs in Ayr average around 16°C (61°F), and temperatures drop to about 11°C (52°F) at night.

What is the average temperature in Ayrshire, the United Kingdom in September?

Daytime temperatures in Ayr peak at roughly 16°C (61°F) in September, dropping to about 11°C (52°F) overnight.

Does Ayrshire, the United Kingdom get a lot of rain in September?

Yes, September tends to be a wetter month in Ayrshire, the United Kingdom. Average rainfall in Ayr sits around 126 mm (5 in).

Is September a Good Time to Visit Ayrshire, the United Kingdom?

In our view, September might not be the best time to travel to Ayrshire, the United Kingdom with often unpleasant weather in Ayr.

On average, the best time to visit Ayrshire, the United Kingdom is in May with generally tolerable weather in Ayr. On the other hand, the months of January, February, March, October, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Ayrshire.

Weather and climate has detailed information for every country in the world. Are you going to the United Kingdom? Get detailed historical weather averages for many cities in the United Kingdom.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.