Killarney

Ring of Kerry Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in the Ring of Kerry, Ireland in September.

Thinking about venturing to the Ring of Kerry, Ireland this September and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in the Ring of Kerry in September

The Ring of Kerry, Ireland is a region in Ireland. September in the Ring of Kerry generally has mild temperatures, with precipitation levels ranging from moderate to high.

Temperatures

You can expect mild maximum daytime temperatures of around 17°C (63°F) and nighttime temperatures around 10°C (50°F) in Killarney.

For a closer look at conditions across the Ring of Kerry, Ireland, refer to the map below.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Killarney with an average of 93 mm (3.7 in) to high rainfall in Portmagee with 121 mm (4.8 in). Going by our weather data, this month in Killarney usually has the least rain, making it the driest month of the year.

Average sunshine

Sunshine levels are moderate in most locations. Killarney typically sees 118 hours of sunlight, creating comfortable conditions that aren't too bright or too dim. Looking for something sunnier? Our weather planner helps you discover destinations with more reliable sunshine.

Explore the Ring of Kerry by month

Pick a month to see the average temperature, rainfall and sunshine in the Ring of Kerry - and find the best time to visit. (based on Killarney)

Best Places to Visit in the Ring of Kerry in September

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

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 the Ring of Kerry

What is the weather like in September for some of the most popular destinations in the Ring of Kerry, Ireland?

Temperature range in the Ring of Kerry (September)

Precipitation variation in the Ring of Kerry (September)

Killarney

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

August
September
October
Max temperature
19°C (66°F)
17°C (63°F)
14°C (57°F)
Min temperature
11°C (52°F)
10°C (50°F)
7°C (45°F)
Monthly sun hours
139 hours
118 hours
82 hours
Monthly rainfall
102 mm (4 in)
93 mm (3.7 in)
114 mm (4.5 in)
Monthly rainy days
20 days
19 days
22 days
Weather conditions

Kenmare

In September Kenmare generally has moderate temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 10°C (50°F) and moderate monthly rainfall. So on average the conditions are good that month.

August
September
October
Max temperature
19°C (66°F)
18°C (64°F)
14°C (57°F)
Min temperature
11°C (52°F)
10°C (50°F)
7°C (45°F)
Monthly sun hours
139 hours
118 hours
82 hours
Monthly rainfall
107 mm (4.2 in)
100 mm (3.9 in)
125 mm (4.9 in)
Monthly rainy days
20 days
19 days
22 days
Weather conditions

Killorglin

In September Killorglin generally has moderate temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 10°C (50°F) and moderate monthly rainfall. So on average the conditions are very good that month.

August
September
October
Max temperature
19°C (66°F)
18°C (64°F)
15°C (59°F)
Min temperature
12°C (54°F)
10°C (50°F)
8°C (46°F)
Monthly sun hours
139 hours
118 hours
82 hours
Monthly rainfall
111 mm (4.4 in)
99 mm (3.9 in)
122 mm (4.8 in)
Monthly rainy days
20 days
20 days
22 days
Weather conditions

Waterville

In September Waterville generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 12°C (54°F) and high monthly rainfall. So on average the conditions are mixed that month.

August
September
October
Max temperature
18°C (64°F)
17°C (63°F)
15°C (59°F)
Min temperature
13°C (55°F)
12°C (54°F)
10°C (50°F)
Monthly sun hours
139 hours
118 hours
82 hours
Monthly rainfall
115 mm (4.5 in)
116 mm (4.6 in)
152 mm (6 in)
Monthly rainy days
21 days
20 days
24 days
Weather conditions

Cahersiveen

In September Cahersiveen generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 12°C (54°F) and high monthly rainfall. So on average the conditions are mixed that month.

August
September
October
Max temperature
18°C (64°F)
17°C (63°F)
15°C (59°F)
Min temperature
13°C (55°F)
12°C (54°F)
10°C (50°F)
Monthly sun hours
139 hours
118 hours
82 hours
Monthly rainfall
117 mm (4.6 in)
116 mm (4.6 in)
149 mm (5.9 in)
Monthly rainy days
21 days
20 days
24 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in the Ring of Kerry, in Ireland.

Popular cities in September

Day & night temperatures, rainfall and average weather in the Ring of Kerry in September.

City Weather Day temp Night temp Rainfall
Killarney 17°C (63°F) 10°C (50°F) 93 mm (3.7 in)
Kenmare 18°C (64°F) 10°C (50°F) 100 mm (3.9 in)
Killorglin 18°C (64°F) 10°C (50°F) 99 mm (3.9 in)
Waterville 17°C (63°F) 12°C (54°F) 116 mm (4.6 in)
Cahersiveen 17°C (63°F) 12°C (54°F) 116 mm (4.6 in)
Sneem 17°C (63°F) 11°C (52°F) 111 mm (4.4 in)

The Ring of Kerry weather in September: frequently asked questions

What is the weather like in the Ring of Kerry, Ireland in September?

In September, the Ring of Kerry, Ireland generally has good weather conditions. Killarney sees daytime temperatures near 17°C (63°F), with nights cooling to roughly 10°C (50°F).

What is the average temperature in the Ring of Kerry, Ireland in September?

In Killarney, the average daytime high in September is 17°C (63°F), while nighttime temperatures drop to around 10°C (50°F).

Does the Ring of Kerry, Ireland get a lot of rain in September?

September is on the drier side in the Ring of Kerry, Ireland. Killarney averages only about 93 mm (3.7 in), with most days staying dry.

Is September a Good Time to Visit the Ring of Kerry, Ireland?

Given the typically good weather conditions in Killarney, September might be a good time to visit the Ring of Kerry, Ireland. However, the weather conditions may vary depending on your destination.

Generally speaking, June provides very good weather in Killarney. On the other hand, the months of January, February, April, November and December tend to have less favorable weather conditions.

Interested in more climate information?

We have much more information about the climate in the Ring of Kerry.

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

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.