Weather on September 21 in Dublin

Historical weather data for September 21 in Dublin, Ireland

Avg High17°C (63°F)
Avg Low9°C (48°F)
Warmest201317°C
Coldest19799°C

Based on 55 years of data from DUBLIN PHOENIX PARK

About This Date

September 21st in Dublin, Ireland typically brings mild fall weather, with average highs around 17°C and lows near 9°C. Over 55 years of records, the warmest September 21st was in 2013 (17°C average), while the coldest was 1979 (9°C) — a 15°F range across recorded history. Rain or other precipitation has occurred on about 56% of September 21st dates historically, with the wettest September 21st recording 1.36" of rain. The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.

The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.

Planning for September 21st in Dublin? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecip
202514°C (58°F)6°C (42°F)0.13"
202416°C (61°F)14°C (58°F)0.19"
202317°C (63°F)6°C (42°F)0"
202218°C (65°F)11°C (51°F)1.36"
202118°C (65°F)12°C (53°F)0"
202021°C (69°F)7°C (44°F)0"
201921°C (69°F)13°C (55°F)1"
201816°C (61°F)6°C (43°F)0.07"
201717°C (62°F)9°C (49°F)0.13"
201616°C (61°F)8°C (46°F)0.48"
201517°C (63°F)11°C (51°F)0.83"
201418°C (64°F)6°C (42°F)0"
201324°C (75°F)11°C (51°F)0"
201213°C (55°F)--0.61"
201115°C (59°F)10°C (50°F)--
201019°C (67°F)12°C (53°F)--
200919°C (67°F)12°C (53°F)--
200818°C (65°F)8°C (46°F)--
200716°C (61°F)11°C (51°F)0.81"
200619°C (67°F)--0.3"
200521°C (69°F)11°C (51°F)0"
200416°C (60°F)8°C (47°F)0.19"
200322°C (72°F)6°C (42°F)0.6"
200219°C (67°F)6°C (43°F)0"
200117°C (62°F)6°C (42°F)0"
200020°C (68°F)7°C (45°F)0.35"
199919°C (67°F)12°C (53°F)0"
199822°C (72°F)8°C (47°F)0"
199719°C (66°F)14°C (57°F)0"
199616°C (61°F)11°C (52°F)0"
199517°C (63°F)7°C (44°F)0"
199417°C (62°F)9°C (49°F)0"
199318°C (64°F)8°C (47°F)0.3"
199214°C (57°F)5°C (41°F)0"
199119°C (66°F)10°C (50°F)0.58"
199014°C (57°F)4°C (40°F)0.03"
198919°C (66°F)14°C (57°F)0.39"
198816°C (61°F)7°C (45°F)0.29"
198718°C (64°F)10°C (50°F)0.49"
198615°C (59°F)7°C (45°F)0"
198521°C (70°F)10°C (50°F)0.01"
198414°C (57°F)5°C (41°F)0.15"
198314°C (57°F)6°C (43°F)0.01"
198216°C (61°F)5°C (41°F)0"
198117°C (62°F)8°C (46°F)0.04"
198018°C (64°F)9°C (49°F)0.03"
197913°C (56°F)4°C (39°F)0.15"
197823°C (73°F)11°C (52°F)0"
197713°C (55°F)8°C (46°F)0.05"
197616°C (60°F)13°C (55°F)0.22"
197517°C (63°F)8°C (47°F)0"
197414°C (57°F)7°C (44°F)0.13"
197316°C (60°F)6°C (42°F)0.22"
197217°C (62°F)11°C (51°F)0.02"
197119°C (67°F)14°C (57°F)0"

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