Fall 2021 Weather History in San Juan Puerto Rico

The data for this report comes from the Luis Muñoz Marín International Airport. See all nearby weather stations

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

San Juan Temperature History in the Fall of 2021

Temperature history in the Fall of 2021 in San JuanSepOctNov70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°FSummerWinter
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 the Fall of 2021 in San Juan

Hourly Temperature in the Fall of 2021 in San JuanSepOctNov12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSummerWinterwarmhot
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 the Fall of 2021 in San Juan

Cloud Cover in the Fall of 2021 in San JuanSepOctNov12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSummerWinter
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.

Daily Precipitation in the Fall of 2021 in San Juan

Daily Precipitation in the Fall of 2021 in San JuanSepOctNov0.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 inSummerWinter
The daily measured quantity of liquid or liquid-equivalent precipitation.

Observed Weather in the Fall of 2021 in San Juan

Observed Weather in the Fall of 2021 in San JuanSepOctNov12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSummerWinter
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 Light Rain0.25 in-RA
Mon, Sep 6 Light Rain0.01 in-RA
Thu, Sep 9 Thunderstorm, Thunderstorm with Rain, Light Rain0.18 inTS, TSRA, -RA
Sat, Sep 11 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Light Rain0.40 inTS, +TSRA, -TSRA, -RA
Sun, Sep 12 Heavy Rain, Light Rain0.38 in+RA, -RA
Mon, Sep 13 Thunderstorm, Thunderstorm with Light Rain, Light Rain0.15 inTS, -TSRA, -RA
Tue, Sep 14 Thunderstorm, Thunderstorm with Light Rain0.00 inTS, -TSRA
Wed, Sep 15 Thunderstorm, Thunderstorm with Light Rain, Light Rain0.04 inTS, -TSRA, -RA
Sat, Sep 18 Light Rain0.11 in-RA
Sun, Sep 19 Light Rain0.45 in-RA
Mon, Sep 20 Thunderstorm, Heavy Rain, Rain, Light Rain, Mist0.69 inTS, +RA, RA, -RA, BR
Tue, Sep 21 Thunderstorm, Thunderstorm with Light Rain, Thunderstorm with Rain, Rain, Light Rain, Mist0.61 inTS, -TSRA, TSRA, RA, -RA, BR
Thu, Sep 23 ThunderstormTS
Sat, Sep 25 Thunderstorm0.00 inTS
Tue, Sep 28 Thunderstorm0.00 inTS
Wed, Sep 29 Thunderstorm0.00 inTS
Thu, Sep 30 Light Rain0.07 in-RA
Fri, Oct 1 Thunderstorm0.00 inTS
Sat, Oct 2 Thunderstorm, Rain, Light Rain0.28 inTS, RA, -RA
Tue, Oct 5 Light Rain0.08 in-RA
Wed, Oct 6 Light Rain0.13 in-RA
Thu, Oct 7 Thunderstorm with Light Rain, Light Rain, Mist0.12 in-TSRA, -RA, BR
Fri, Oct 8 HazeHZ
Sat, Oct 9 Haze0.01 inHZ
Sun, Oct 10 Rain, Light Rain0.49 inRA, -RA
Mon, Oct 11 Thunderstorm, Thunderstorm with Rain, Heavy Rain, Rain, Light Rain, Mist1.18 inTS, TSRA, +RA, RA, -RA, BR
Tue, Oct 12 Thunderstorm, Thunderstorm with Light Rain, Rain, Light Rain, Mist0.47 inTS, -TSRA, RA, -RA, BR
Wed, Oct 13 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Light RainTS, +TSRA, -TSRA, TSRA, -RA
Thu, Oct 14 Thunderstorm, Thunderstorm with Light RainTS, -TSRA
Fri, Oct 15 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Light RainTS, +TSRA, -TSRA, -RA
Sat, Oct 16 Thunderstorm with Rain, Light RainTSRA, -RA
Sun, Oct 17 Thunderstorm, Light RainTS, -RA
Tue, Oct 19 Light Rain-RA
Wed, Oct 20 Thunderstorm, Thunderstorm with Light Rain, Thunderstorm with Rain, Rain, Light Rain, MistTS, -TSRA, TSRA, RA, -RA, BR
Thu, Oct 21 Thunderstorm, Thunderstorm with Light Rain, Light Rain0.00 inTS, -TSRA, -RA
Sat, Oct 23 Light Rain0.00 in-RA
Sun, Oct 24 Heavy Rain, Light Rain, Mist0.22 in+RA, -RA, BR
Mon, Oct 25 Light Rain0.31 in-RA
Tue, Oct 26 Light Rain0.00 in-RA
Sun, Oct 31 Light Rain0.01 in-RA
Mon, Nov 1 Light Rain0.06 in-RA
Wed, Nov 3 Rain, Light Rain0.27 inRA, -RA
Fri, Nov 5 Light Rain0.00 in-RA
Thu, Nov 11 Light Rain0.06 in-RA
Fri, Nov 12 Light Rain0.06 in-RA
Sat, Nov 13 Light Rain0.29 in-RA
Wed, Nov 17 Light Rain0.19 in-RA
Thu, Nov 18 Light Rain0.13 in-RA
Fri, Nov 19 Rain, Light Rain0.07 inRA, -RA
Sun, Nov 21 Rain, Light Rain0.07 inRA, -RA
Mon, Nov 22 Light Rain0.00 in-RA
Thu, Nov 25 Heavy Rain, Rain, Light Rain0.82 in+RA, RA, -RA
Sun, Nov 28 Light Rain0.14 in-RA

Hours of Daylight and Twilight in the Fall of 2021 in San Juan

Hours of Daylight and Twilight in the Fall of 2021 in San JuanSepOctNov0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSummerWinterSep 2212 hr, 7 minSep 2212 hr, 7 minnightnightdaydayNov 3011 hr, 7 minNov 3011 hr, 7 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 the Fall of 2021 in San Juan

Sunrise & Sunset with Twilight in the Fall of 2021 in San JuanSepOctNov2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSummerWinter6:09 AM6:09 AMSep 16:38 PMSep 16:38 PM6:35 AM6:35 AMNov 235:46 PMNov 235:46 PM6:13 AM6:13 AMSep 216:21 PMSep 216:21 PM
The solar day over the course of the Fall of 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 the Fall of 2021 in San Juan

Solar Elevation and Azimuth in the Fall of 2021 in San JuanSepOctNov12 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 AMSummerWinter0010202030304050600010102030304040506070
northeastsouthwest
Solar elevation and azimuth in the the fall of 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 the Fall of 2021 in San Juan

Moon Rise, Set & Phases in the Fall of 2021 in San JuanSepOctNov12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSummerWinterAug 89:51 AMAug 89:51 AMAug 228:03 AMAug 228:03 AMSep 68:52 PMSep 68:52 PMSep 207:55 PMSep 207:55 PMOct 67:06 AMOct 67:06 AMOct 2010:57 AMOct 2010:57 AMNov 45:15 PMNov 45:15 PMNov 194:58 AMNov 194:58 AMDec 43:44 AMDec 43:44 AMDec 1912:36 AMDec 1912:36 AM7:21 PM7:21 PM6:32 PM6:32 PM6:07 AM6:07 AM5:41 AM5:41 AM6:41 PM6:41 PM6:29 PM6:29 PM6:40 AM6:40 AM6:18 AM6:18 AM5:38 PM5:38 PM6:14 AM6:14 AM6:00 AM6:00 AM5:52 PM5:52 PM5:25 PM5:25 PM6:40 AM6:40 AM6:15 PM6:15 PM5:30 PM5:30 PM7:12 AM7:12 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.

Humidity Comfort Levels in the Fall of 2021 in San Juan

Humidity Comfort Levels in the Fall of 2021 in San JuanSepOctNov12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSummerWinter
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 the Fall of 2021 in San Juan

Wind Speed in the Fall of 2021 in San JuanSepOctNov0 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mphSummerWinter
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in the Fall of 2021 in San Juan

Hourly Wind Speed in the Fall of 2021 in San JuanSepOctNov12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSummerWinter
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 San Juan

Hourly Wind Direction in 2021 in San JuanSepOctNov12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSummerWinter
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in the Fall of 2021 in San Juan

Atmospheric Pressure in the Fall of 2021 in San JuanSepOctNov29.8 inHg29.8 inHg29.9 inHg29.9 inHg30.0 inHg30.0 inHg30.1 inHg30.1 inHg30.2 inHg30.2 inHgSummerWinter
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 Luis Muñoz Marín International Airport page.

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