Monaghan County Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Monaghan County, Ireland in September.

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Monaghan Carrickmacross Lisnalong Castleblayney

Planning a journey to Monaghan County, Ireland this September and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What to Expect in Monaghan County in September

Monaghan County, Ireland is a region in Ireland. September in Monaghan County generally has mild temperatures, with moderate precipitation.

Temperatures

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

For specific regional insights in Monaghan County, Ireland, refer to the map provided below.

Precipitation

September is a moderate rainy month with an average rainfall of around 80 mm (3.1 in) in Monaghan.

Average sunshine

Most areas see decent amounts of sunshine this month. Monaghan gets around 109 hours of sunlight, providing a pleasant balance of sun and clouds. If you'd prefer more guaranteed sunshine, our weather planner can show you sunnier spots around the world.

Explore Monaghan County by month

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

January9°C (48°F) February9°C (48°F) March11°C (52°F) April13°C (55°F) May16°C (61°F) June18°C (64°F) This monthJuly20°C (68°F) August19°C (66°F) September17°C (63°F) October14°C (57°F) November11°C (52°F) December9°C (48°F)
Best Time to Visit Monaghan County →

Best Places to Visit in Monaghan County in September

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

Conditions Temperatures Precipitation
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 Monaghan County

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

Temperature range in Monaghan County (September)

Precipitation variation in Monaghan County (September)

Monaghan

In September Monaghan 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 tolerable that month.

« August
September
October »
August
September
October
Max temperature
19°C (66°F)
17°C (63°F)
14°C (57°F)
Min temperature
12°C (54°F)
10°C (50°F)
7°C (45°F)
Monthly sun hours
139 hours
109 hours
85 hours
Monthly rainfall
98 mm (3.9 in)
80 mm (3.1 in)
89 mm (3.5 in)
Monthly rainy days
19 days
19 days
20 days
Weather conditions
pleasant
tolerable
tolerable
Climate in Monaghan →

Carrickmacross

In September Carrickmacross 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 pleasant that month.

« August
September
October »
August
September
October
Max temperature
20°C (68°F)
18°C (64°F)
14°C (57°F)
Min temperature
12°C (54°F)
10°C (50°F)
7°C (45°F)
Monthly sun hours
157 hours
128 hours
97 hours
Monthly rainfall
94 mm (3.7 in)
76 mm (3 in)
84 mm (3.3 in)
Monthly rainy days
18 days
17 days
19 days
Weather conditions
perfect
pleasant
tolerable
Climate in Carrickmacross →

Lisnalong

In September Lisnalong 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 pleasant that month.

« August
September
October »
August
September
October
Max temperature
19°C (66°F)
18°C (64°F)
14°C (57°F)
Min temperature
12°C (54°F)
10°C (50°F)
7°C (45°F)
Monthly rainfall
94 mm (3.7 in)
76 mm (3 in)
86 mm (3.4 in)
Monthly rainy days
19 days
18 days
20 days
Weather conditions
pleasant
pleasant
tolerable
Climate in Lisnalong →

Castleblayney

In September Castleblayney 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 pleasant that month.

« August
September
October »
August
September
October
Max temperature
19°C (66°F)
18°C (64°F)
14°C (57°F)
Min temperature
12°C (54°F)
10°C (50°F)
7°C (45°F)
Monthly sun hours
139 hours
109 hours
85 hours
Monthly rainfall
95 mm (3.7 in)
77 mm (3 in)
85 mm (3.3 in)
Monthly rainy days
18 days
18 days
19 days
Weather conditions
pleasant
pleasant
tolerable
Climate in Castleblayney →

Is your destination not in the list? Have a look at all destinations in Monaghan County, in Ireland.

Popular cities in September

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

City Weather Day temp Night temp Rainfall
Monaghan 17°C (63°F) 10°C (50°F) 80 mm (3.1 in)
Carrickmacross 18°C (64°F) 10°C (50°F) 76 mm (3 in)
Lisnalong 18°C (64°F) 10°C (50°F) 76 mm (3 in)
Castleblayney 18°C (64°F) 10°C (50°F) 77 mm (3 in)

Monaghan County weather in September: frequently asked questions

What is the weather like in Monaghan County, Ireland in September?

In September, Monaghan County, Ireland generally has tolerable weather conditions. Monaghan sees daytime temperatures near 17°C (63°F), with nights cooling to roughly 10°C (50°F).

What is the average temperature in Monaghan County, Ireland in September?

Average temperatures in Monaghan County, Ireland during September range from a nighttime low near 10°C (50°F) to a daytime high around 17°C (63°F) in Monaghan.

Does Monaghan County, Ireland get a lot of rain in September?

September is on the drier side in Monaghan County, Ireland. Monaghan averages only about 80 mm (3.1 in), with most days staying dry.

Is September a Good Time to Visit Monaghan County, Ireland?

Given the typically tolerable weather conditions in Monaghan, September might be a good time to visit Monaghan County, Ireland. However, the weather conditions may vary depending on your destination.

Generally speaking, July provides perfect weather in Monaghan. The weather in January, February and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Monaghan County.

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.

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