Zachary weather in August

In August, Zachary sees average daytime highs of 91°F and overnight lows near 73°F, with 5.0 in of rain across 15.4 wet days and about 13.1 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 91°F through the month. The sky is clear or mostly clear about 29% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 13 h 30 min at the start of August to 12 h 42 min by month's end. Set against the rest of the year, August is Zachary's 11th-clearest and 11th-windiest month. For the whole year in context, see Zachary's year-round climate.

Daytime high
91°
1st warmest
Overnight low
73°
11th coldest
Rainfall
5.0 in
15.4 wet days
Daylight
13 h 06 min
5:35 AM – 6:42 PM
Cloud cover
60%
11th clearest
Wind
4 mph
11th windiest
Solar energy
5.63 kWh/m²
Travel score
3.2
out of 10

Zachary is city in East Baton Rouge Parish, Louisiana, United States.

Density
265/km²
people per km²
Founded
1889

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 91°F through the month.

A typical August day in Zachary reaches about 91°F in the afternoon and slips back to 73°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 85°F and 96°F. Set against its neighbours, August runs on par with July and about 3°F warmer than September.

70°80°90°100°151015202531
Avg high (°F)Avg low (°F)
19174
29174
39174
49174
59174
69174
79174
89174
99174
109174
119174
129174
139174
149174
159173
169173
179173
189173
199173
209173
219173
229173
239173
249173
259073
269073
279073
289073
299072
309072
319072

How August really feels in Zachary

Once humidity and wind are folded in, August averages 31 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
31
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Zachary weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan60° / 42°5.19.610.25.0
Feb64° / 45°4.69.410.95.7
Mar71° / 51°4.810.311.86.6
Apr77° / 57°4.59.212.77.0
May84° / 65°4.09.713.55.6
Jun89° / 72°4.613.413.93.8
Jul90° / 74°4.916.613.83.2
Aug91° / 73°5.015.413.13.2
Sep87° / 69°3.89.912.24.7
Oct79° / 59°3.47.211.27.2
Nov69° / 49°3.78.110.46.9
Dec62° / 44°4.89.310.15.5

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 52%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24654
34753
44654
54852
64753
74753
84753
94753
104852
114852
124852
134852
144852
154951
164951
175050
185050
195050
205050
215050
225050
235050
244951
254951
264852
274951
284951
294951
304951
315050

Chance of precipitation in August

Any precipitation

Zachary gets around 5.0 in of rain over 15.4 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 50% and peaks near 52% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
150
250
350
450
550
650
750
850
950
1051
1151
1252
1352
1452
1552
1652
1752
1852
1951
2051
2150
2250
2349
2449
2548
2647
2746
2846
2945
3044
3143

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the oppressive band about 63% of days. Sticky, muggy-or-worse air turns up on roughly 95% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
101286326
201286326
301286425
401286425
501286524
601286524
701286524
811286424
911286424
1011286424
1111396224
1211396224
1311396224
1411396224
15113106223
16114106123
17114116023
18114116122
19114126121
20114136021
21114136120
22014146219
23014156218
24025156117
25025166116
26025166215
27025176214
28025176313
29036186112
30036186211
31146186110

Wind in August

Winds average 4 mph in August.

Across August, daily wind ranges from about 4 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 30 min at the start of August to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over August. Sunrise moves from 5:26 AM to 5:44 AM, and sunset from 6:56 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:266:56
213.55:266:55
313.55:276:54
413.45:286:53
513.45:286:53
613.45:296:52
713.45:296:51
813.35:306:50
913.35:316:49
1013.35:316:48
1113.35:326:47
1213.25:336:46
1313.25:336:45
1413.25:346:44
1513.15:346:43
1613.15:356:42
1713.15:366:41
1813.15:366:40
1913.05:376:39
2013.05:386:38
2113.05:386:37
2213.05:396:36
2312.95:396:35
2412.95:406:34
2512.95:416:32
2612.85:416:31
2712.85:426:30
2812.85:426:29
2912.75:436:28
3012.75:446:26
3112.75:446:25

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.63 kWh/m².

For context, solar energy here swings from a low near 2.6 kWh/m² to a high of 6.16 kWh/m² in May across the year — August's 5.63 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.4Bright
255.4Bright
265.4Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.2Bright
Planning a trip in August

Is August a good time to visit Zachary?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.2
Sightseeing
11th-best month of the year
5.5
Beach & pool
6th-best month of the year

August is a weaker month for outdoor sightseeing in Zachary.

What to pack for Zachary in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Zachary sees daytime highs around 91°F and nights near 73°F. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

light clothesrain gearsun protection

UV index in Zachary in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Zachary peaks around July 13 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highHighModerateJul 13UV 10Dec 20UV 3
UV index (midday)Level
Jan4Moderate
Feb6High
Mar6High
Apr10Very high
May10Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep8Very high
Oct6High
Nov5Moderate
Dec3Moderate

Air quality in Zachary in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Zachary is worst in July — around 24 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (January, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1623 µg/m³Jan 249 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar11Good
Apr11Good
May15Moderate
Jun19Moderate
Jul24Moderate
Aug18Moderate
Sep13Moderate
Oct12Good
Nov10Good
Dec9Good
Location & terrain

Where is Zachary?

Zachary sits at 30.6°N, 91.2°W, 102 ft above sea level, in United States. The nearest listed city is Central, 9.9 mi away.

Topography around Zachary

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Zachary.

Within 2 miles, the terrain around Zachary has only modest variations in elevation — a maximum elevation change of 95 ft around an average of 108 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 259 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 535 ft.

The land around Zachary is covered by trees (65%) and grassland (23%) within 2 miles, trees (66%) and grassland (25%) within 10 miles, and trees (75%) within 50 miles.

2 miles
95 ft
10 miles
259 ft
50 miles
535 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: Central 9.9 mi · Baton Rouge 14 mi · Shenandoah 19 mi · Prairieville 26 mi · Hammond 42 mi · Opelousas 55 mi · Laplace 57 mi · Lafayette 59 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Zachary (30.6485°, -91.1565°, elevation 102 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).