Helsinki local weather Weather forecast Additional information Thu | Fri | Sat | Sun | Mon | Tue | 12 | 15 | 18 | 21 | 00 | 03 | 09 | 15 | 21 | 03 | 09 | 15 | 03 | 15 | 03 | 15 | 03 | 15 | | Forecast updated 17.5.2012 7:57. | | | | | | | | | | | | | | | | | | | | 17° | 17° | 17° | 13° | 10° | 8° | 7° | 13° | 10° | 6° | 8° | 14° | 6° | 15° | 8° | 15° | 10° | 17° | | | | | | | | | | | | | | | | | | | Sunrise today at 4:36. Sunset today at 21:59. Length of day is 17 h 23 min. Local weather observations Recent weather observation: 17 May 2012 8:20 local time| Temperature 12.3 °C | Humidity 88% | | Dew point 10.3 °C | Observation data for the last 2 days |