Weather on August 18 in Helsinki

Historical weather data for August 18 in Helsinki, Finland

Avg High20°C (68°F)
Avg Low13°C (55°F)
Warmest202223°C
Coldest19988°C

Based on 55 years of data from HELSINKI RAUTATIENTORI

About This Date

August 18th in Helsinki, Finland typically brings mild summer weather, with average highs around 20°C and lows near 13°C. Over 55 years of records, the warmest August 18th was in 2022 (23°C average), while the coldest was 1998 (8°C) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 45% of August 18th dates historically, with the wettest August 18th recording 2.59" of rain. The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.

The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.

Planning for August 18th in Helsinki? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecip
202522°C (71°F)14°C (57°F)0"
202422°C (71°F)13°C (55°F)0"
202321°C (69°F)15°C (59°F)0.38"
202227°C (80°F)20°C (68°F)0"
202118°C (64°F)14°C (58°F)0.97"
202022°C (71°F)10°C (50°F)0"
201922°C (71°F)17°C (62°F)0.37"
201823°C (74°F)18°C (65°F)0.36"
201721°C (69°F)17°C (62°F)0.02"
201619°C (66°F)13°C (56°F)0.29"
201522°C (71°F)13°C (56°F)--
201419°C (67°F)15°C (59°F)--
201323°C (74°F)16°C (60°F)--
201223°C (74°F)14°C (58°F)--
201121°C (70°F)16°C (60°F)--
201021°C (70°F)17°C (62°F)--
200916°C (61°F)12°C (53°F)0.23"
200821°C (69°F)16°C (61°F)0.09"
200720°C (68°F)14°C (57°F)0"
200623°C (73°F)16°C (60°F)0.13"
200521°C (69°F)9°C (48°F)0"
200422°C (71°F)13°C (56°F)0.22"
200322°C (71°F)12°C (53°F)0.17"
200222°C (72°F)12°C (54°F)0"
200121°C (69°F)16°C (60°F)0"
200019°C (67°F)12°C (53°F)0.36"
199920°C (68°F)9°C (49°F)0"
199816°C (61°F)1°C (34°F)0.77"
199720°C (68°F)7°C (45°F)0"
199623°C (74°F)16°C (60°F)0"
199526°C (79°F)16°C (61°F)0"
199416°C (60°F)8°C (47°F)0.02"
199314°C (58°F)11°C (52°F)1.02"
199216°C (61°F)13°C (56°F)0.24"
199117°C (63°F)14°C (58°F)2.3"
199020°C (68°F)16°C (60°F)0"
198919°C (67°F)16°C (60°F)0"
198817°C (62°F)12°C (53°F)0.01"
198717°C (63°F)7°C (44°F)0"
198617°C (63°F)13°C (55°F)2.59"
198524°C (76°F)17°C (62°F)0"
198417°C (63°F)6°C (43°F)0.17"
198319°C (67°F)9°C (49°F)0"
198218°C (64°F)14°C (57°F)0"
198117°C (63°F)13°C (55°F)0.04"
198020°C (68°F)11°C (52°F)0"
197923°C (74°F)17°C (62°F)0"
197818°C (65°F)13°C (56°F)0.1"
197715°C (59°F)6°C (43°F)0"
197622°C (72°F)13°C (55°F)0.13"
197516°C (60°F)9°C (48°F)0.96"
197418°C (64°F)13°C (56°F)0"
197325°C (77°F)17°C (62°F)0"
197219°C (67°F)15°C (59°F)0.34"
197122°C (71°F)12°C (53°F)0"

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