December 2020 Weather History in Helsinki Finland

The data for this report comes from the Helsinki-Vantaa Airport. See all nearby weather stations

This report shows the past weather for Helsinki, providing a weather history for December 2020. It features all historical weather data series we have available, including the Helsinki temperature history for December 2020. You can drill down from year to month and even day level reports by clicking on the graphs.

Helsinki Temperature History December 2020

Temperature history in December 2020 in Helsinki181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930303131-5°F-5°F0°F0°F5°F5°F10°F10°F15°F15°F20°F20°F25°F25°F30°F30°F35°F35°F40°F40°F45°F45°F50°F50°FNovJan
The daily range of reported temperatures (gray bars) and 24-hour highs (red ticks) and lows (blue ticks), placed over the daily average high (faint red line) and low (faint blue line) temperature, with 25th to 75th and 10th to 90th percentile bands.

Hourly Temperature in December 2020 in Helsinki

Hourly Temperature in December 2020 in Helsinki18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJanfreezingvery cold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The hourly reported temperature, color coded into bands. The shaded overlays indicate night and civil twilight.
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Cloud Cover in December 2020 in Helsinki

Cloud Cover in December 2020 in Helsinki18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJan
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
no significant cloudno cloud detectedceiling and visibility ok
The hourly reported cloud coverage, categorized by the percentage of the sky covered by clouds.

Observed Weather in December 2020 in Helsinki

Observed Weather in December 2020 in Helsinki18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJan
foghazedrizzlelight rainmoderate rainheavy rainfreezing rainsleetsnow grainslight snowmoderate snowheavy snowhailthunderstorm
The hourly observed weather, color coded by category (in order of severity). If multiple reports are present, the most severe code is shown.
DayObservationsPrecipitationCodes
Tue, Dec 1 Light Snow, Light Rain and Snow, Showers of Rain, Light Rain, Showers of Light Rain, Showers in the Vicinity-SN, -RASN, SHRA, -RA, -SHRA, VCSH
Wed, Dec 2 Light Drizzle and Rain, Showers of Light Rain, Showers in the Vicinity-DZRA, -SHRA, VCSH
Thu, Dec 3 Light Snow, Light Snow Grains-SN, -SG
Fri, Dec 4 Snow, Light Snow, Light Snow and Rain, Light RainSN, -SN, -SNRA, -RA
Sat, Dec 5 Light Rain, Light Drizzle-RA, -DZ
Thu, Dec 10 Light Snow-SN
Fri, Dec 11 Snow, Light Snow, Light Snow Grains, Light Freezing DrizzleSN, -SN, -SG, -FZDZ
Sat, Dec 12 Light Freezing Drizzle, Light Rain, Light Rain and Drizzle, Light Drizzle-FZDZ, -RA, -RADZ, -DZ
Sun, Dec 13 Light Snow, Light Snow Grains-SN, -SG
Mon, Dec 14 Light Snow, Light Snow Grains-SN, -SG
Tue, Dec 15 Light Snow, Light Drizzle and Rain, Light Rain, Drizzle, Light Drizzle-SN, -DZRA, -RA, DZ, -DZ
Wed, Dec 16 Light Snow, Light Snow and Rain, Light Rain, Light Drizzle, Mist-SN, -SNRA, -RA, -DZ, BR
Thu, Dec 17 Light Snow, Light Freezing Drizzle, Recent Freezing Drizzle, Light Drizzle, Mist-SN, -FZDZ, REFZDZ, -DZ, BR
Fri, Dec 18 Light Freezing Drizzle, Recent Freezing Drizzle, Light Drizzle and Rain, Light Rain, Drizzle, Light Drizzle, Fog, Mist-FZDZ, REFZDZ, -DZRA, -RA, DZ, -DZ, FG, BR
Sat, Dec 19 Light Rain, Light Drizzle, Fog, Mist-RA, -DZ, FG, BR
Sun, Dec 20 Light Drizzle, Mist-DZ, BR
Mon, Dec 21 Rain and Drizzle, Light Drizzle and Rain, Light Rain, Light Rain and Drizzle, Showers of Light Rain, Light Drizzle, Fog, Mist, Partial Fog, Patches of FogRADZ, -DZRA, -RA, -RADZ, -SHRA, -DZ, FG, BR, PRFG, BCFG
Tue, Dec 22 Light Drizzle and Rain, Light Rain, Light Rain and Drizzle, Showers of Light Rain, Light Drizzle, Mist-DZRA, -RA, -RADZ, -SHRA, -DZ, BR
Wed, Dec 23 Snow, Light Snow, Light Rain and Snow, Light Snow and Rain, Drizzle and Rain, Light Rain, Light DrizzleSN, -SN, -RASN, -SNRA, DZRA, -RA, -DZ
Thu, Dec 24 Light Drizzle and Rain, Light Rain, Patches of Fog, Shallow Fog, Showers in the Vicinity-DZRA, -RA, BCFG, MIFG, VCSH
Fri, Dec 25 Light Snow, Light Snow Grains-SN, -SG
Sat, Dec 26 Light Snow-SN
Sun, Dec 27 Light Snow-SN
Mon, Dec 28 Light Snow, Light Rain-SN, -RA
Tue, Dec 29 Light Snow, Light Rain and Snow, Light Snow and Rain, Snow and Rain, Light Rain, Light Drizzle-SN, -RASN, -SNRA, SNRA, -RA, -DZ
Wed, Dec 30 Snow, Light Snow, Light Rain and Snow, Light Snow and Rain, Snow and Rain, Light Rain, Light DrizzleSN, -SN, -RASN, -SNRA, SNRA, -RA, -DZ
Thu, Dec 31 Light Rain and Snow, Light Snow and Rain, Light Drizzle and Rain, Light Rain, Light Drizzle, Fog, Mist, Partial Fog-RASN, -SNRA, -DZRA, -RA, -DZ, FG, BR, PRFG

Hours of Daylight and Twilight in December 2020 in Helsinki

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

Sunrise & Sunset with Twilight in December 2020 in Helsinki

The solar day over the course of December 2020. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

Solar Elevation and Azimuth in December 2020 in Helsinki

Solar Elevation and Azimuth in December 2020 in HelsinkiDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNovJan0000
northeastsouthwest
Solar elevation and azimuth over the course of December 2020. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

Moon Rise, Set & Phases in December 2020 in Helsinki

Moon Rise, Set & Phases in December 2020 in Helsinki18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNovJanNov 3011:30 AMNov 3011:30 AMDec 146:17 PMDec 146:17 PMDec 305:29 AMDec 305:29 AM3:14 PM3:14 PM8:45 AM8:45 AM8:58 AM8:58 AM2:52 PM2:52 PM2:21 PM2:21 PM10:09 AM10:09 AM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.
Dec 2020IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
100%-10:06 AMNW3:48 PMNE12:37 AMS248,830 mi
2
98%-11:18 AMNNW4:23 PMNNE1:27 AMS247,132 mi
3
94%-12:14 PMNNW5:17 PMNNE2:18 AMS245,196 mi
4
87%-12:51 PMNW6:31 PMNE3:10 AMS243,040 mi
5
80%-1:14 PMNW7:57 PMNE4:02 AMS240,673 mi
6
70%-1:29 PMNW9:29 PMNE4:53 AMS238,116 mi
7
60%-1:38 PMWNW11:02 PMENE5:43 AMS235,418 mi
8
50%-1:46 PMWNW-6:31 AMS232,675 mi
9
37%12:37 AME1:52 PMW-7:19 AMS230,036 mi
10
26%2:12 AME1:58 PMW-8:08 AMS227,707 mi
11
16%3:50 AMESE2:05 PMWSW-8:59 AMS225,926 mi
12
8%5:32 AMESE2:14 PMWSW-9:54 AMS224,934 mi
13
2%7:16 AMSE2:29 PMSW-10:53 AMS224,924 mi
14
0%8:58 AMSE2:52 PMSW-11:55 AMS225,994 mi
15
1%10:27 AMSSE3:33 PMSSW-1:00 PMS228,107 mi
16
4%11:30 AMSSE4:38 PMSSW-2:04 PMS231,085 mi
17
11%12:08 PMSE6:02 PMSW-3:05 PMS234,642 mi
18
18%12:29 PMSE7:33 PMSW-4:01 PMS238,440 mi
19
27%12:41 PMSE9:02 PMWSW-4:51 PMS242,145 mi
20
37%12:50 PMESE10:27 PMWSW-5:37 PMS245,469 mi
21
47%12:55 PMESE11:48 PMW-6:20 PMS248,191 mi
22
50%1:00 PME--7:01 PMS250,165 mi
23
66%-1:07 AMW1:04 PME7:40 PMS251,321 mi
24
75%-2:25 AMWNW1:09 PMENE8:21 PMS251,659 mi
25
83%-3:44 AMWNW1:15 PMENE9:02 PMS251,240 mi
26
90%-5:04 AMWNW1:22 PMNE9:45 PMS250,170 mi
27
95%-6:27 AMNW1:34 PMNE10:32 PMS248,591 mi
28
98%-7:49 AMNW1:51 PMNE11:21 PMS246,658 mi
29
99%-9:05 AMNW2:21 PMNNE--
30
100%-10:09 AMNNW3:09 PMNNE12:12 AMS244,523 mi
31
99%-10:53 AMNW4:18 PMNE1:05 AMS242,319 mi

Humidity Comfort Levels in December 2020 in Helsinki

Humidity Comfort Levels in December 2020 in Helsinki18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJan
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The hourly reported humidity comfort level, categorized by dew point. The shaded overlays indicate night and civil twilight.

Wind Speed in December 2020 in Helsinki

Wind Speed in December 2020 in Helsinki1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph5 mph5 mph10 mph10 mph15 mph15 mph20 mph20 mph25 mph25 mph30 mph30 mph35 mph35 mph40 mph40 mphNovJan
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in December 2020 in Helsinki

Hourly Wind Speed in December 2020 in Helsinki18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJan
0 mph calm 1 mph light air 4 mph light breeze 8 mph gentle breeze 13 mph moderate breeze 18 mph fresh breeze 25 mph strong breeze 31 mph near gale 39 mph gale 47 mph strong gale 55 mph storm 64 mph violent storm 73 mph hurricane force
The hourly reported wind speed, color coded into bands according to the Beaufort scale. The shaded overlays indicate night and civil twilight.

Hourly Wind Direction in 2020 in Helsinki

Hourly Wind Direction in 2020 in Helsinki18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJan
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in December 2020 in Helsinki

Atmospheric Pressure in December 2020 in Helsinki18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313129.4 inHg29.4 inHg29.6 inHg29.6 inHg29.8 inHg29.8 inHg30.0 inHg30.0 inHg30.2 inHg30.2 inHg30.4 inHg30.4 inHg30.6 inHg30.6 inHgNovJan
The daily range of atmospheric pressure (gray bars), as measured by the altimeter setting reported in e.g. a METAR report.

The details of the data sources used for this report can be found on the Helsinki-Vantaa Airport page.

See all nearby weather stations

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