Cassilis Rotherw Airport Rainfall Forecast

Today 18 Sep
5%< 1mm
Fri 19 Sep
95%5–10mm
Sat 20 Sep
75%1–5mm
Sun 21 Sep
5%< 1mm
Mon 22 Sep
20%< 1mm
Tue 23 Sep
45%< 2mm
Wed 24 Sep
15%< 1mm

Cassilis Rotherw Airport Rainfall Statistics View More

September Rainfall

Merriwa (Roscommon) (28km)

Total Rainfall 2025
448.8mm
Daily Average 2025
2mm
Wettest Day 27 May, 2025
37.8mm
Wet Days 2025
60/261 (23%)
Total Rainfall August
56.8mm
Daily Average August
1.8mm
Wettest Day 21 August, 2025
33.4mm
Wet Days August
11/31 (35%)
Total Rainfall September
14.8mm
Daily Average September
0.9mm
Wettest Day 10 September, 2025
11.6mm
Wet Days September
2/18 (11%)

Climate (2010–Present)

Merriwa (Roscommon) (28km)

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Annual Average 2020–2024
758.6mm
Monthly Average 2020–2025
60.9mm
Daily Average 2020–2025
2mm
Wettest Day 23 March, 2021
75.6mm

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