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September 2021 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 September 2021. It features all historical weather data series we have available, including the Helsinki temperature history for September 2021. You can drill down from year to month and even day level reports by clicking on the graphs.

Helsinki Temperature History September 2021

History:20232022JFMAMJJASepOND20202019
Temperature history in September 2021 in Helsinki1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303025°F25°F30°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°FAugOct
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 September 2021 in Helsinki

History:20232022JFMAMJJASepOND20202019
Hourly Temperature in September 2021 in Helsinki1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOctvery coldcoldcool
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 September 2021 in Helsinki

History:20232022JFMAMJJASepOND20202019
Cloud Cover in September 2021 in Helsinki1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
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 September 2021 in Helsinki

History:20232022JFMAMJJASepOND20202019
Observed Weather in September 2021 in Helsinki1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
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
Wed, Sep 1 Showers of Light Rain, Showers in the Vicinity-SHRA, VCSH
Thu, Sep 2 Light Rain-RA
Fri, Sep 3 Showers of Rain, Showers of Light Rain, Showers in the VicinitySHRA, -SHRA, VCSH
Sat, Sep 4 Showers in the VicinityVCSH
Mon, Sep 6 Light Rain-RA
Tue, Sep 7 Light Rain, Shallow Fog-RA, MIFG
Thu, Sep 9 Light Rain-RA
Sat, Sep 11 Showers of Light Rain, Fog, Mist, Partial Fog-SHRA, FG, BR, PRFG
Sun, Sep 12 Showers of Rain, Showers of Light Rain, Light Drizzle, Fog, Mist, Partial Fog, Showers in the VicinitySHRA, -SHRA, -DZ, FG, BR, PRFG, VCSH
Mon, Sep 13 Recent Showers of Rain, Showers of Light Rain, Light Drizzle, Mist, Showers in the VicinityRESHRA, -SHRA, -DZ, BR, VCSH
Sat, Sep 18 Light Rain-RA
Sun, Sep 19 Light Rain-RA
Tue, Sep 21 Light Rain-RA
Thu, Sep 23 Rain, Light RainRA, -RA
Fri, Sep 24 Rain, Light Drizzle and Rain, Light Rain, Light Rain and Drizzle, Light Drizzle, MistRA, -DZRA, -RA, -RADZ, -DZ, BR
Sat, Sep 25 Light Drizzle and Rain, Light Rain, Shallow Fog, Showers in the Vicinity-DZRA, -RA, MIFG, VCSH
Mon, Sep 27 Fog, Patches of FogFG, BCFG
Tue, Sep 28 Fog, Patches of Fog, Shallow FogFG, BCFG, MIFG

Hours of Daylight and Twilight in September 2021 in Helsinki

History:20232022JFMAMJJASepOND20202019
Hours of Daylight and Twilight in September 2021 in Helsinki181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrAugOctSep 2212 hr, 15 minSep 2212 hr, 15 minnightnightdaydaySep 114 hr, 9 minSep 114 hr, 9 minSep 3011 hr, 32 minSep 3011 hr, 32 minSep 1113 hr, 15 minSep 1113 hr, 15 min
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 September 2021 in Helsinki

History:20232022JFMAMJJASepOND20202019
Sunrise & Sunset with Twilight in September 2021 in Helsinki181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMAugOct6:14 AM6:14 AMSep 18:23 PMSep 18:23 PM7:23 AM7:23 AMSep 306:55 PMSep 306:55 PM6:38 AM6:38 AMSep 117:53 PMSep 117:53 PM7:02 AM7:02 AMSep 217:22 PMSep 217:22 PM
The solar day over the course of September 2021. 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 September 2021 in Helsinki

History:20232022JFMAMJJASepOND20202019
Solar Elevation and Azimuth in September 2021 in HelsinkiSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOct00101020203000101020203030
northeastsouthwest
Solar elevation and azimuth over the course of September 2021. 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 September 2021 in Helsinki

History:20232022JFMAMJJASepOND20202019
Moon Rise, Set & Phases in September 2021 in Helsinki1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctSep 73:52 AMSep 73:52 AMSep 212:55 AMSep 212:55 AMOct 62:06 PMOct 62:06 PM6:18 AM6:18 AM8:45 PM8:45 PM7:54 PM7:54 PM7:00 AM7:00 AM6:58 AM6:58 AM7:03 PM7:03 PM
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.
Sep 2021IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
32%-6:48 PMNNW11:17 PMNNE8:39 AMS249,309 mi
2
23%-7:37 PMNNW-9:29 AMS247,283 mi
3
15%12:17 AMNNE8:07 PMNW-10:21 AMS244,700 mi
4
8%1:37 AMNE8:24 PMNW-11:12 AMS241,772 mi
5
3%3:08 AMNE8:34 PMNW-12:02 PMS238,743 mi
6
0%4:43 AMENE8:40 PMWNW-12:51 PMS235,855 mi
7
0%6:18 AMENE8:45 PMWNW-1:39 PMS233,326 mi
8
3%7:54 AME8:49 PMW-2:26 PMS231,316 mi
9
8%9:30 AME8:53 PMWSW-3:14 PMS229,917 mi
10
15%11:08 AMESE8:58 PMWSW-4:04 PMS229,146 mi
11
25%12:49 PMESE9:04 PMSW-4:57 PMS228,960 mi
12
36%2:32 PMSE9:15 PMSW-5:54 PMS229,275 mi
13
50%4:13 PMSE9:35 PMSW-6:54 PMS229,999 mi
14
60%5:41 PMSSE10:13 PMSSW-7:57 PMS231,049 mi
15
71%6:43 PMSSE11:18 PMSSW-9:00 PMS232,367 mi
16
81%7:17 PMSE--10:01 PMS233,922 mi
17
89%-12:46 AMSW7:34 PMSE10:58 PMS235,703 mi
18
95%-2:23 AMSW7:44 PMSE11:51 PMS237,697 mi
19
97%-3:59 AMWSW7:50 PMESE--
20
99%-5:31 AMWSW7:54 PMESE12:39 AMS239,877 mi
21
100%-7:00 AMW7:57 PME1:24 AMS242,182 mi
22
99%-8:25 AMW8:00 PME2:07 AMS244,513 mi
23
96%-9:49 AMWNW8:03 PMENE2:49 AMS246,738 mi
24
91%-11:13 AMWNW8:07 PMENE3:30 AMS248,701 mi
25
85%-12:37 PMNW8:13 PMNE4:13 AMS250,235 mi
26
77%-2:02 PMNW8:22 PMNE4:57 AMS251,184 mi
27
68%-3:24 PMNW8:38 PMNNE5:43 AMS251,416 mi
28
59%-4:39 PMNNW9:08 PMNNE6:30 AMS250,842 mi
29
50%-5:35 PMNNW9:57 PMNNE7:20 AMS249,432 mi
30
39%-6:11 PMNNW11:09 PMNNE8:11 AMS247,227 mi

Humidity Comfort Levels in September 2021 in Helsinki

History:20232022JFMAMJJASepOND20202019
Humidity Comfort Levels in September 2021 in Helsinki1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
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 September 2021 in Helsinki

History:20232022JFMAMJJASepOND20202019
Wind Speed in September 2021 in Helsinki181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mphAugOct
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in September 2021 in Helsinki

History:20232022JFMAMJJASepOND20202019
Hourly Wind Speed in September 2021 in Helsinki1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
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 2021 in Helsinki

History:20232022JFMAMJJASepOND20202019
Hourly Wind Direction in 2021 in Helsinki1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in September 2021 in Helsinki

History:20232022JFMAMJJASepOND20202019
Atmospheric Pressure in September 2021 in Helsinki1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303029.2 inHg29.2 inHg29.4 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 inHgAugOct
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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