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September 2018 Weather History in San José Costa Rica

The data for this report comes from the Juan Santamaría International Airport. See all nearby weather stations

This report shows the past weather for San José, providing a weather history for September 2018. It features all historical weather data series we have available, including the San José temperature history for September 2018. You can drill down from year to month and even day level reports by clicking on the graphs.

San José Temperature History September 2018

History:20202019JFMAMJJASepOND20172016
Temperature history in September 2018 in San José1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303060°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°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 2018 in San José

History:20202019JFMAMJJASepOND20172016
Hourly Temperature in September 2018 in San José1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOctcomfortablewarmcool
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 2018 in San José

History:20202019JFMAMJJASepOND20172016
Cloud Cover in September 2018 in San José1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 2018 in San José

History:20202019JFMAMJJASepOND20172016
Observed Weather in September 2018 in San José1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 1 Recent Thunderstorm with Rain, Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Light Rain, Fog in the VicinityRETSRA, VCTS, -TSRA, -RA, VCFG
Sun, Sep 2 Showers of Light Rain, Patches of Fog-SHRA, BCFG
Mon, Sep 3 Recent Thunderstorm with Rain, Thunderstorm, Thunderstorm with Light Rain, Light Rain, Fog in the Vicinity, Showers in the VicinityRETSRA, TS, -TSRA, -RA, VCFG, VCSH
Tue, Sep 4 Fog in the VicinityVCFG
Wed, Sep 5 Recent Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Thunderstorm with Rain, Showers of Heavy Rain, Rain, Light Rain, Fog in the Vicinity, MistRETS, VCTS, -TSRA, TSRA, +SHRA, RA, -RA, VCFG, BR
Thu, Sep 6 Recent Thunderstorm with Rain, Thunderstorm in the Vicinity, Thunderstorm with Heavy Rain, Thunderstorm with Rain, Light Rain, Fog in the Vicinity, Mist, Showers in the VicinityRETSRA, VCTS, +TSRA, TSRA, -RA, VCFG, BR, VCSH
Fri, Sep 7 Recent Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Thunderstorm with Rain, Showers of Rain, Light Rain, Mist, Patches of FogRETS, VCTS, -TSRA, TSRA, SHRA, -RA, BR, BCFG
Sat, Sep 8 Heavy Rain, Light Rain, Fog in the Vicinity, Mist+RA, -RA, VCFG, BR
Sun, Sep 9 Rain, Light Rain, Fog, Fog in the Vicinity, MistRA, -RA, FG, VCFG, BR
Mon, Sep 10 Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Thunderstorm with Rain, Light Rain, Fog in the Vicinity, MistVCTS, -TSRA, TSRA, -RA, VCFG, BR
Tue, Sep 11 Mild Thunderstorm, Recent Thunderstorm, Recent Thunderstorm with Rain, Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Thunderstorm with Rain, Recent Rain, Light Rain, Fog in the Vicinity, Showers in the Vicinity-TS, RETS, RETSRA, VCTS, -TSRA, TSRA, RERA, -RA, VCFG, VCSH
Wed, Sep 12 Recent Thunderstorm with Rain, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Patches of FogRETSRA, +TSRA, -TSRA, TSRA, BCFG
Thu, Sep 13 Light Rain-RA
Fri, Sep 14 Recent Thunderstorm with Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Light Rain, FogRETSRA, -TSRA, TSRA, -RA, FG
Sat, Sep 15 Recent Thunderstorm, Thunderstorm with Light Rain, Thunderstorm with Rain, Light Rain, Fog in the Vicinity, Patches of FogRETS, -TSRA, TSRA, -RA, VCFG, BCFG
Sun, Sep 16 Recent Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Recent Showers of Rain, Showers of Rain, MistRETS, VCTS, -TSRA, RESHRA, SHRA, BR
Mon, Sep 17 Thunderstorm in the Vicinity, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Showers of Rain, Light Rain, Fog in the Vicinity, Mist, Patches of Fog, Showers in the VicinityVCTS, +TSRA, -TSRA, TSRA, SHRA, -RA, VCFG, BR, BCFG, VCSH
Tue, Sep 18 Heavy Rain, Recent Rain, Light Rain, Light Drizzle, Fog in the Vicinity, Mist, Patches of Fog+RA, RERA, -RA, -DZ, VCFG, BR, BCFG
Wed, Sep 19 Rain, Recent Rain, Fog in the VicinityRA, RERA, VCFG
Thu, Sep 20 Light Rain, Fog in the Vicinity-RA, VCFG
Fri, Sep 21 Recent Thunderstorm with Rain, Thunderstorm with Light Rain, Rain, Recent Rain, Showers of Rain, Light Rain, Fog in the Vicinity, Mist, Recent ShowersRETSRA, -TSRA, RA, RERA, SHRA, -RA, VCFG, BR, RESH
Sat, Sep 22 Thunderstorm with Light Rain, Rain, Light Rain-TSRA, RA, -RA
Mon, Sep 24 Recent Thunderstorm, Thunderstorm in the Vicinity, Light Rain, Light DrizzleRETS, VCTS, -RA, -DZ
Tue, Sep 25 Fog in the Vicinity, Patches of FogVCFG, BCFG
Wed, Sep 26 Recent Thunderstorm with Rain, Thunderstorm in the Vicinity, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Heavy Rain, Light Rain, Light Drizzle, Patches of Fog, Showers in the VicinityRETSRA, VCTS, +TSRA, -TSRA, TSRA, +RA, -RA, -DZ, BCFG, VCSH
Thu, Sep 27 Heavy Rain, Rain, Light Rain, Mist, Patches of Fog, Showers in the Vicinity+RA, RA, -RA, BR, BCFG, VCSH
Fri, Sep 28 Rain, Light Rain, Showers in the VicinityRA, -RA, VCSH
Sat, Sep 29 Thunderstorm in the Vicinity, Rain, Light Rain, Fog in the Vicinity, MistVCTS, RA, -RA, VCFG, BR
Sun, Sep 30 Thunderstorm in the Vicinity, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Rain, Light Rain, Fog, Fog in the Vicinity, MistVCTS, +TSRA, -TSRA, TSRA, RA, -RA, FG, VCFG, BR

Hours of Daylight and Twilight in September 2018 in San José

History:20202019JFMAMJJASepOND20172016
Hours of Daylight and Twilight in September 2018 in San José181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrAugOctSep 2212 hr, 7 minSep 2212 hr, 7 minnightnightdaydaySep 112 hr, 18 minSep 112 hr, 18 minSep 3012 hr, 2 minSep 3012 hr, 2 minSep 1112 hr, 13 minSep 1112 hr, 13 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 2018 in San José

History:20202019JFMAMJJASepOND20172016
Sunrise & Sunset with Twilight in September 2018 in San José1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PMAugOct5:24 AM5:24 AMSep 305:27 PMSep 305:27 PM5:27 AM5:27 AMSep 15:45 PMSep 15:45 PM5:26 AM5:26 AMSep 115:39 PMSep 115:39 PM5:25 AM5:25 AMSep 215:32 PMSep 215:32 PM
The solar day over the course of September 2018. 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 2018 in San José

History:20202019JFMAMJJASepOND20172016
Solar Elevation and Azimuth in September 2018 in San JoséSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOct001010202030304040505060607070808000101020203030404050506060707080
northeastsouthwest
Solar elevation and azimuth over the course of September 2018. 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 2018 in San José

History:20202019JFMAMJJASepOND20172016
Moon Rise, Set & Phases in September 2018 in San José1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctAug 265:57 AMAug 265:57 AMSep 912:02 PMSep 912:02 PMSep 248:53 PMSep 248:53 PM5:29 PM5:29 PM5:31 AM5:31 AM5:17 AM5:17 AM5:56 PM5:56 PM5:31 PM5:31 PM5:50 AM5:50 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.
Sep 2018IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
68%-10:23 AMWNW10:27 PMENE4:00 AMN238,049 mi
2
50%-11:17 AMWNW11:18 PMENE4:51 AMN235,225 mi
3
46%-12:14 PMWNW-5:45 AMN232,362 mi
4
34%12:13 AMENE1:14 PMWNW-6:43 AMN229,633 mi
5
23%1:12 AMENE2:14 PMWNW-7:43 AMN227,263 mi
6
14%2:13 AMENE3:13 PMWNW-8:44 AMN225,510 mi
7
6%3:16 AMENE4:11 PMWNW-9:44 AMN224,611 mi
8
2%4:17 AMENE5:05 PMWNW-10:42 AMN224,738 mi
9
0%5:17 AME5:56 PMW-11:38 AMS225,948 mi
10
1%6:14 AME6:45 PMW-12:30 PMS228,168 mi
11
6%7:10 AME7:32 PMW-1:21 PMS231,201 mi
12
12%8:04 AME8:18 PMW-2:11 PMS234,764 mi
13
21%8:56 AME9:04 PMWSW-3:00 PMS238,534 mi
14
30%9:48 AMESE9:50 PMWSW-3:49 PMS242,194 mi
15
40%10:39 AMESE10:37 PMWSW-4:38 PMS245,467 mi
16
50%11:30 AMESE11:24 PMWSW-5:27 PMS248,144 mi
17
60%12:20 PMESE--6:16 PMS250,085 mi
18
69%-12:13 AMWSW1:09 PMESE7:05 PMS251,228 mi
19
78%-1:01 AMWSW1:56 PMESE7:53 PMS251,578 mi
20
86%-1:50 AMWSW2:42 PMESE8:40 PMS251,201 mi
21
92%-2:39 AMWSW3:26 PMESE9:27 PMS250,206 mi
22
96%-3:27 AMWSW4:08 PMESE10:12 PMS248,728 mi
23
99%-4:14 AMW4:50 PME10:56 PMS246,906 mi
24
100%-5:02 AMW5:31 PME11:40 PMS244,875 mi
25
100%-5:50 AMW6:12 PME--
26
99%-6:38 AMW6:55 PME12:25 AMS242,743 mi
27
95%-7:28 AMW7:39 PME1:11 AMS240,590 mi
28
89%-8:19 AMWNW8:25 PMENE1:58 AMN238,467 mi
29
81%-9:13 AMWNW9:15 PMENE2:48 AMN236,399 mi
30
72%-10:09 AMWNW10:08 PMENE3:41 AMN234,406 mi

Humidity Comfort Levels in September 2018 in San José

History:20202019JFMAMJJASepOND20172016
Humidity Comfort Levels in September 2018 in San José1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 2018 in San José

History:20202019JFMAMJJASepOND20172016
Wind Speed in September 2018 in San José181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph5 mph5 mph10 mph10 mph15 mph15 mph20 mph20 mph25 mph25 mph30 mph30 mph35 mph35 mph40 mph40 mphAugOct
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in September 2018 in San José

History:20202019JFMAMJJASepOND20172016
Hourly Wind Speed in September 2018 in San José1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 2018 in San José

History:20202019JFMAMJJASepOND20172016
Hourly Wind Direction in 2018 in San José1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 2018 in San José

History:20202019JFMAMJJASepOND20172016
Atmospheric Pressure in September 2018 in San José1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303030 inHg30 inHg32 inHg32 inHg34 inHg34 inHg36 inHg36 inHg38 inHg38 inHg40 inHg40 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 Juan Santamaría International Airport page.

See all nearby weather stations

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