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September Weather in Bonita Springs Florida, United States

Daily high temperatures decrease by 2°F, from 89°F to 87°F, rarely falling below 83°F or exceeding 92°F.

Daily low temperatures decrease by 2°F, from 75°F to 73°F, rarely falling below 69°F or exceeding 78°F.

For reference, on August 7, the hottest day of the year, temperatures in Bonita Springs typically range from 76°F to 90°F, while on January 18, the coldest day of the year, they range from 55°F to 74°F.

Average High and Low Temperature in September in Bonita Springs

Average High and Low Temperature in September in Bonita SpringsSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303055°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°F100°F100°FAugOctSep 189°FSep 189°F75°F75°FSep 3087°FSep 3087°F73°F73°FSep 1189°FSep 1189°F75°F75°FSep 2188°FSep 2188°F74°F74°F
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on September. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in September in Bonita Springs

Average Hourly Temperature in September in Bonita SpringsSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOctcomfortablecomfortablewarmhot
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 average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Asunción, Paraguay (3,919 miles away) and Taichung, Taiwan (8,649 miles) are the far-away foreign places with temperatures most similar to Bonita Springs (view comparison).

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The month of September in Bonita Springs experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 69% to 57%.

The clearest day of the month is September 30, with clear, mostly clear, or partly cloudy conditions 43% of the time.

For reference, on August 27, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 70%, while on February 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 69%.

Cloud Cover Categories in September in Bonita Springs

Cloud Cover Categories in September in Bonita SpringsSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AugOctSep 131%Sep 131%Sep 3043%Sep 3043%Sep 1133%Sep 1133%Sep 2137%Sep 2137%clearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Bonita Springs, the chance of a wet day over the course of September is very rapidly decreasing, starting the month at 68% and ending it at 46%.

For reference, the year's highest daily chance of a wet day is 74% on August 12, and its lowest chance is 13% on December 16.

Probability of Precipitation in September in Bonita Springs

Probability of Precipitation in September in Bonita SpringsSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%AugOctSep 168%Sep 168%Sep 3046%Sep 3046%Sep 1163%Sep 1163%Sep 2156%Sep 2156%rain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during September in Bonita Springs is rapidly decreasing, starting the month at 6.1 inches, when it rarely exceeds 9.5 inches or falls below 3.4 inches, and ending the month at 4.3 inches, when it rarely exceeds 7.1 inches or falls below 1.8 inches.

Average Monthly Rainfall in September in Bonita Springs

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.

Over the course of September in Bonita Springs, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 44 minutes, implying an average daily decrease of 1 minute, 32 seconds, and weekly decrease of 10 minutes, 41 seconds.

The shortest day of the month is September 30, with 11 hours, 55 minutes of daylight and the longest day is September 1, with 12 hours, 39 minutes of daylight.

Hours of Daylight and Twilight in September in Bonita Springs

Hours of Daylight and Twilight in September in Bonita SpringsSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrAugOctSep 2212 hr, 8 minSep 2212 hr, 8 minnightnightdaydaySep 112 hr, 39 minSep 112 hr, 39 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.

The earliest sunrise of the month in Bonita Springs is 7:07 AM on September 1 and the latest sunrise is 12 minutes later at 7:19 AM on September 30.

The latest sunset is 7:46 PM on September 1 and the earliest sunset is 32 minutes earlier at 7:14 PM on September 30.

Daylight saving time is observed in Bonita Springs during 2024, but it neither starts nor ends during September, so the entire month is in standard time.

For reference, on June 20, the longest day of the year, the Sun rises at 6:35 AM and sets 13 hours, 48 minutes later, at 8:22 PM, while on December 21, the shortest day of the year, it rises at 7:10 AM and sets 10 hours, 29 minutes later, at 5:40 PM.

Sunrise & Sunset with Twilight in September in Bonita Springs

Sunrise & Sunset with Twilight in September in Bonita SpringsSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMAugOct7:07 AM7:07 AMSep 17:46 PMSep 17:46 PM7:19 AM7:19 AMSep 307:14 PMSep 307:14 PM7:11 AM7:11 AMSep 117:35 PMSep 117:35 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of September. 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.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in September in Bonita Springs

Solar Elevation and Azimuth in September in Bonita SpringsSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOct001010202020303040405050506070800001010202030303040405050606070
northeastsouthwest
Solar elevation and azimuth over the course of September 2024. 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).

The figure below presents a compact representation of key lunar data for September 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in September in Bonita Springs

Moon Rise, Set & Phases in September in Bonita SpringsSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctAug 47:14 AMAug 47:14 AMAug 192:26 PMAug 192:26 PMSep 29:56 PMSep 29:56 PMSep 1710:35 PMSep 1710:35 PMOct 22:50 PMOct 22:50 PMOct 177:27 AMOct 177:27 AM6:53 AM6:53 AM8:41 PM8:41 PM8:16 PM8:16 PM7:50 AM7:50 AM6:38 AM6:38 AM7:46 PM7:46 PM7:23 PM7:23 PM7:41 AM7:41 AM7:08 AM7:08 AM7:12 PM7:12 PM6:27 PM6:27 PM7:32 AM7:32 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 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
2%5:43 AMENE7:16 PMWNW-12:32 PMS249,161 mi
2
0%6:38 AMENE7:46 PMW-1:14 PMS250,560 mi
3
0%7:30 AME8:14 PMW-1:54 PMS251,599 mi
4
3%8:22 AME8:41 PMW-2:32 PMS252,233 mi
5
7%9:12 AME9:08 PMW-3:11 PMS252,399 mi
6
12%10:03 AMESE9:36 PMWSW-3:50 PMS252,021 mi
7
19%10:56 AMESE10:07 PMWSW-4:31 PMS251,027 mi
8
28%11:50 AMESE10:42 PMWSW-5:16 PMS249,358 mi
9
37%12:47 PMESE11:22 PMWSW-6:04 PMS246,993 mi
10
47%1:46 PMESE--6:57 PMS243,964 mi
11
50%-12:09 AMWSW2:45 PMESE7:54 PMS240,376 mi
12
68%-1:03 AMWSW3:42 PMESE8:53 PMS236,420 mi
13
78%-2:04 AMWSW4:35 PMESE9:53 PMS232,371 mi
14
87%-3:10 AMWSW5:23 PMESE10:51 PMS228,568 mi
15
94%-4:18 AMWSW6:07 PMESE11:47 PMS225,378 mi
16
97%-5:26 AMWSW6:46 PMESE--
17
100%-6:34 AMW7:23 PME12:40 AMS223,132 mi
18
100%-7:41 AMW7:59 PME1:31 AMS222,073 mi
19
98%-8:49 AMW8:36 PMENE2:22 AMS222,308 mi
20
93%-9:57 AMWNW9:15 PMENE3:13 AMS223,784 mi
21
85%-11:06 AMWNW9:59 PMENE4:07 AMS226,309 mi
22
76%-12:14 PMWNW10:48 PMENE5:04 AMS229,587 mi
23
65%-1:21 PMWNW11:42 PMENE6:03 AMN233,279 mi
24
50%-2:22 PMWNW-7:02 AMN237,057 mi
25
42%12:41 AMENE3:16 PMWNW-8:00 AMN240,651 mi
26
32%1:41 AMENE4:03 PMWNW-8:54 AMS243,870 mi
27
23%2:40 AMENE4:43 PMWNW-9:45 AMS246,602 mi
28
15%3:38 AMENE5:18 PMWNW-10:31 AMS248,802 mi
29
9%4:33 AMENE5:49 PMWNW-11:14 AMS250,472 mi
30
4%5:26 AME6:18 PMW-11:54 AMS251,639 mi

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The chance that a given day will be muggy in Bonita Springs is decreasing during September, falling from 100% to 92% over the course of the month.

For reference, on July 17, the muggiest day of the year, there are muggy conditions 100% of the time, while on January 27, the least muggy day of the year, there are muggy conditions 18% of the time.

Humidity Comfort Levels in September in Bonita Springs

Humidity Comfort Levels in September in Bonita SpringsSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%AugOctSep 1100%Sep 1100%Sep 3092%Sep 3092%Sep 11100%Sep 11100%Sep 2196%Sep 2196%miserablemiserableoppressiveoppressivemuggymuggyhumidhumiddrydrycomfortablecomfortable
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Bonita Springs is increasing during September, increasing from 6.9 miles per hour to 8.3 miles per hour over the course of the month.

For reference, on November 6, the windiest day of the year, the daily average wind speed is 10.0 miles per hour, while on August 8, the calmest day of the year, the daily average wind speed is 6.0 miles per hour.

Average Wind Speed in September in Bonita Springs

Average Wind Speed in September in Bonita SpringsSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphAugOctSep 16.9 mphSep 16.9 mphSep 308.3 mphSep 308.3 mphSep 117.3 mphSep 117.3 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in Bonita Springs throughout September is predominantly from the east, with a peak proportion of 53% on September 9.

Wind Direction in September in Bonita Springs

Wind Direction in September in Bonita SpringsSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%20%80%40%60%60%40%80%20%100%0%AugOctwestsoutheastnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Bonita Springs is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average surface water temperature in Bonita Springs is gradually decreasing during September, falling by 2°F, from 86°F to 84°F, over the course of the month.

Average Water Temperature in September in Bonita Springs

Average Water Temperature in September in Bonita SpringsSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303074°F74°F76°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°F88°F88°FAugOctSep 186°FSep 186°FSep 3084°FSep 3084°FSep 1185°FSep 1185°FSep 2184°FSep 2184°F
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Temperatures in Bonita Springs are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

Time Spent in Various Temperature Bands and the Growing Season in September in Bonita Springs

Time Spent in Various Temperature Bands and the Growing Season in September in Bonita SpringsSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AugOct100%Sep 16100%Sep 16coolcomfortablewarmhot
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 percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days in Bonita Springs are rapidly increasing during September, increasing by 868°F, from 5,825°F to 6,692°F, over the course of the month.

Growing Degree Days in September in Bonita Springs

Growing Degree Days in September in Bonita SpringsSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930305,600°F5,600°F5,800°F5,800°F6,000°F6,000°F6,200°F6,200°F6,400°F6,400°F6,600°F6,600°F6,800°F6,800°FAugOctSep 15,825°FSep 15,825°FSep 306,692°FSep 306,692°FSep 116,127°FSep 116,127°FSep 216,430°FSep 216,430°F
The average growing degree days accumulated over the course of September, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy in Bonita Springs is essentially constant during September, remaining within 0.1 kWh of 4.5 kWh throughout.

The lowest average daily incident shortwave solar energy during September is 4.4 kWh on September 12.

Average Daily Incident Shortwave Solar Energy in September in Bonita Springs

Average Daily Incident Shortwave Solar Energy in September in Bonita SpringsSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhAugOctSep 124.4 kWhSep 124.4 kWhSep 14.4 kWhSep 14.4 kWhSep 304.6 kWhSep 304.6 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of Bonita Springs are 26.340 deg latitude, -81.779 deg longitude, and 7 ft elevation.

The topography within 2 miles of Bonita Springs is essentially flat, with a maximum elevation change of 10 feet and an average elevation above sea level of 8 feet. Within 10 miles is also essentially flat (23 feet). Within 50 miles is also essentially flat (75 feet).

The area within 2 miles of Bonita Springs is covered by artificial surfaces (98%), within 10 miles by artificial surfaces (44%) and water (25%), and within 50 miles by water (44%) and herbaceous vegetation (25%).

This report illustrates the typical weather in Bonita Springs, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Bonita Springs.

For each station, the records are corrected for the elevation difference between that station and Bonita Springs according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Bonita Springs is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Bonita Springs and a given station.

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Bonita Springs and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

Other Data

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.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

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

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

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.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.