Navan Weather in September

With daytime temperatures of 18°C (64°F) and nighttime lows of 10°C (50°F), September in Navan brings pleasant temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 70 mm (2.8 in) falls on average.

Rainfall in Navan in September

Looking at the last 30 years, the data shows about 16 days with rain, averaging 70 mm (2.8 in) for the month. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.

Temperature in Navan in September

September in Navan brings pleasant temperatures, with highs of 18°C (64°F) and nights around 10°C (50°F). The difference between afternoon and evening temperatures is usually noticeable. With overnight lows of 10°C (50°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Navan in September

The city usually sees around 128 hours of sunlight, indicating a moderately sunny period.

If you prefer dry days with pleasant temperatures, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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For a detailed overview over the year and the best time to visit Ireland, check out our Navan's climate page.

Navan Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 18°C (64°F)  

Chance of Rain 55%  

Precipitation 70 mm (2.8 in)  

Rainy days 16 days  

Humidity 71% *  

Sunshine 128 hours *  

Percentage Sunshine 33% *  

* Data from: Dublin, Ireland (37 KM, 23 Miles).

What to Wear in Navan in September

For Navan in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Navan in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

10/10

Walking

10/10

Camping

8/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Ireland, check out our Navan's climate page.

More climate data for Navan

Temperature Rainfall Sunshine Humidity

See the full Navan climate overview or explore weather in Ireland.