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September 2021 Weather History at Koksijde Belgium

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

Koksijde Temperature History September 2021

History:20232022JFMAMJJASepOND20202019
Temperature history in September 2021 at Koksijde1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303035°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°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 at Koksijde

History:20232022JFMAMJJASepOND20202019
Hourly Temperature in September 2021 at Koksijde1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOctcoldcoolwarmcomfortable
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 at Koksijde

History:20232022JFMAMJJASepOND20202019
Cloud Cover in September 2021 at Koksijde1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 at Koksijde

History:20232022JFMAMJJASepOND20202019
Observed Weather in September 2021 at Koksijde1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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
Sat, Sep 4 MistBR
Sun, Sep 5 MistBR
Mon, Sep 6 MistBR
Tue, Sep 7 MistBR
Wed, Sep 8 MistBR
Thu, Sep 9 Recent Rain, Recent Showers of Rain, Light Rain, Light Drizzle, MistRERA, RESHRA, -RA, -DZ, BR
Fri, Sep 10 MistBR
Sat, Sep 11 Light Rain, Drizzle, Light Drizzle-RA, DZ, -DZ
Mon, Sep 13 Fog, Mist, Patches of FogFG, BR, BCFG
Tue, Sep 14 Recent Rain, Light Rain, MistRERA, -RA, BR
Wed, Sep 15 Fog, MistFG, BR
Thu, Sep 16 MistBR
Fri, Sep 17 Fog, MistFG, BR
Sat, Sep 18 Fog, MistFG, BR
Sun, Sep 19 MistBR
Mon, Sep 20 MistBR
Wed, Sep 22 MistBR
Thu, Sep 23 MistBR
Fri, Sep 24 MistBR
Sat, Sep 25 MistBR
Sun, Sep 26 Heavy Rain, Mist+RA, BR
Mon, Sep 27 Rain, Light Rain, MistRA, -RA, BR
Wed, Sep 29 Heavy Rain, Rain, Light Rain, Light Drizzle, Showers in the Vicinity+RA, RA, -RA, -DZ, VCSH
Thu, Sep 30 Recent RainRERA

Hours of Daylight and Twilight in September 2021 at Koksijde

History:20232022JFMAMJJASepOND20202019
Hours of Daylight and Twilight in September 2021 at Koksijde181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrAugOctSep 2212 hr, 12 minSep 2212 hr, 12 minnightnightdaydaySep 113 hr, 32 minSep 113 hr, 32 minSep 3011 hr, 41 minSep 3011 hr, 41 minSep 1112 hr, 54 minSep 1112 hr, 54 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 at Koksijde

History:20232022JFMAMJJASepOND20202019
Sunrise & Sunset with Twilight in September 2021 at Koksijde181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMAugOct7:02 AM7:02 AMSep 18:34 PMSep 18:34 PM7:48 AM7:48 AMSep 307:29 PMSep 307:29 PM7:18 AM7:18 AMSep 118:12 PMSep 118:12 PM7:34 AM7:34 AMSep 217:49 PMSep 217:49 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 at Koksijde

History:20232022JFMAMJJASepOND20202019
Solar Elevation and Azimuth in September 2021 at KoksijdeSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOct00101020203030400010102020303040
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 at Koksijde

History:20232022JFMAMJJASepOND20202019
Moon Rise, Set & Phases in September 2021 at Koksijde1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctSep 72:52 AMSep 72:52 AMSep 211:55 AMSep 211:55 AMOct 61:06 PMOct 61:06 PM7:15 AM7:15 AM9:02 PM9:02 PM8:10 PM8:10 PM7:42 AM7:42 AM7:33 AM7:33 AM7:39 PM7:39 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
31%12:30 AMNE5:55 PMNW-9:11 AMS249,203 mi
2
23%1:16 AMNE6:46 PMNW-10:02 AMS247,137 mi
3
15%2:13 AMNE7:26 PMNW-10:54 AMS244,525 mi
4
8%3:21 AMNE7:58 PMNW-11:45 AMS241,583 mi
5
3%4:36 AMENE8:23 PMWNW-12:36 PMS238,555 mi
6
0%5:55 AMENE8:44 PMWNW-1:25 PMS235,683 mi
7
0%7:15 AMENE9:02 PMW-2:13 PMS233,182 mi
8
3%8:36 AME9:18 PMW-3:00 PMS231,208 mi
9
8%9:58 AME9:35 PMW-3:49 PMS229,850 mi
10
16%11:22 AMESE9:53 PMWSW-4:39 PMS229,118 mi
11
26%12:47 PMESE10:15 PMWSW-5:32 PMS228,966 mi
12
37%2:12 PMESE10:44 PMSW-6:28 PMS229,310 mi
13
50%3:35 PMSE11:21 PMSW-7:28 PMS230,056 mi
14
61%4:49 PMSE--8:30 PMS231,123 mi
15
72%-12:12 AMSW5:50 PMSE9:33 PMS232,456 mi
16
81%-1:16 AMSW6:36 PMSE10:33 PMS234,025 mi
17
89%-2:31 AMSW7:09 PMSE11:29 PMS235,819 mi
18
93%-3:50 AMWSW7:35 PMESE--
19
95%-5:10 AMWSW7:54 PMESE12:21 AMS237,825 mi
20
99%-6:27 AMWSW8:10 PME1:09 AMS240,014 mi
21
100%-7:42 AMW8:25 PME1:54 AMS242,324 mi
22
99%-8:54 AMW8:39 PME2:37 AMS244,653 mi
23
96%-10:06 AMWNW8:54 PMENE3:19 AMS246,866 mi
24
91%-11:17 AMWNW9:10 PMENE4:01 AMS248,808 mi
25
84%-12:27 PMWNW9:29 PMENE4:43 AMS250,311 mi
26
76%-1:37 PMNW9:54 PMNE5:28 AMS251,220 mi
27
68%-2:44 PMNW10:25 PMNE6:14 AMS251,404 mi
28
58%-3:46 PMNW11:06 PMNE7:02 AMS250,779 mi
29
50%-4:40 PMNW11:57 PMNE7:52 AMS249,318 mi
30
39%-5:24 PMNW-8:43 AMS247,066 mi

Humidity Comfort Levels in September 2021 at Koksijde

History:20232022JFMAMJJASepOND20202019
Humidity Comfort Levels in September 2021 at Koksijde1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 at Koksijde

History:20232022JFMAMJJASepOND20202019
Wind Speed in September 2021 at Koksijde181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mphAugOct
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in September 2021 at Koksijde

History:20232022JFMAMJJASepOND20202019
Hourly Wind Speed in September 2021 at Koksijde1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 at Koksijde

History:20232022JFMAMJJASepOND20202019
Hourly Wind Direction in 2021 at Koksijde1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 at Koksijde

History:20232022JFMAMJJASepOND20202019
Atmospheric Pressure in September 2021 at Koksijde1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303029.2 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.

Reports by Month

Reports by Month at Koksijde194019501960197019801990200020102020194919491950195019511951195219521953195319541954195519551956195619731973197419741975197519761976197719771978197819791979198019801981198119821982198319831984198419851985198619861987198719881988198919891990199019911991199219921993199319941994199519951996199619971997199819981999199920002000200120012002200220032003200420042005200520062006200720072008200820092009201020102011201120122012201320132014201420152015201620162017201720182018201920192020202020212021202220222023202320242024
METARISDboth
The number of reports per month over the entire history of this station.

Number of Reports by Day in September 2021 at Koksijde Fall 2021

Number of Reports by Day in September 2021 at Koksijde18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030002020404060608080AugOct
regularspecialcorrection
The number of reports per day.

Reports by Hour in September 2021 at Koksijde Fall 2021

Reports by Hour in September 2021 at Koksijde1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
regularspecialcorrection
Indication of what types of reports were recorded during each hour.

This report graphically illustrates the historical weather reports recorded by the weather station at Koksijde in September 2021.

METAR Reports

Airport weather stations throughout the world routinely issue METAR weather reports . Such reports are used by pilots, air traffic controllers, meteorologists, climatologists, and other researchers. They are published via radio transmission and on the internet. We have been collecting and archiving published METAR reports since 2011, and have found third-party sources for archived reports from years prior to that.

ISD Reports

The Integrated Surface Database (ISD), maintained and published by NOAA's National Center for Environmental Information , consists of hourly and synoptic weather reports from a variety of sources. We use ISD data to complement and backfill for our METAR archive.

Other Data

The sources for the averages shown in the daily temperature chart are discussed in greater detail on this station's Averages Report.

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

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We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

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