Suwanee weather in July

In July, Suwanee sees average daytime highs of 88°F and overnight lows near 71°F, with 4.0 in of rain across 14.9 wet days and about 14 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 88°F through the month. The sky is clear or mostly clear about 26% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 14 h 12 min at the start of July to 13 h 42 min by month's end. Set against the rest of the year, July is Suwanee's 11th-clearest and 11th-windiest month. For the whole year in context, see Suwanee's year-round climate.

Daytime high
88°
1st warmest
Overnight low
71°
12th coldest
Rainfall
4.0 in
14.9 wet days
Daylight
14 h 06 min
5:40 AM – 7:44 PM
Cloud cover
60%
11th clearest
Wind
5 mph
11th windiest
Solar energy
5.98 kWh/m²
Travel score
4.0
out of 10

Suwanee is city in Gwinnett County, Georgia, U.S..

Density
659/km²
people per km²

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 88°F through the month.

A typical July day in Suwanee reaches about 88°F in the afternoon and slips back to 71°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 82°F and 94°F. Set against its neighbours, July runs about 3°F warmer than June and on par with August.

60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18770
28770
38770
48771
58771
68771
78771
88771
98771
108871
118871
128871
138871
148871
158871
168871
178871
188872
198872
208872
218872
228872
238872
248872
258872
268872
278871
288871
298871
308871
318871

How July really feels in Suwanee

Once humidity and wind are folded in, July 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 July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Suwanee weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan52° / 35°4.610.40.6102.9
Feb56° / 37°4.69.90.510.73.8
Mar64° / 44°4.6100.111.75.7
Apr72° / 51°3.99.5012.86.8
May79° / 60°3.49.8013.76.7
Jun85° / 68°4.113.7014.24.8
Jul88° / 71°4.014.90144.0
Aug87° / 70°4.212.8013.34.4
Sep82° / 64°3.68.7012.26.4
Oct72° / 53°3.47.2011.17.3
Nov62° / 42°3.98.4010.25.7
Dec54° / 37°4.510.30.39.83.4

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 24% of July, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24852
34753
44852
54951
64951
74951
85050
95050
104951
115050
125149
135050
145050
155050
165050
175050
185050
195050
205149
215050
225050
235050
245050
254951
265050
275050
285050
295050
304951
314951

Chance of precipitation in July

Any precipitation

Suwanee gets around 4.0 in of rain over 14.9 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 48% and peaks near 50% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
150
250
350
450
549
649
749
849
949
1048
1148
1248
1348
1448
1548
1648
1748
1848
1948
2048
2147
2247
2347
2446
2546
2646
2746
2845
2945
3045
3145

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the oppressive band about 46% of days. Sticky, muggy-or-worse air turns up on roughly 86% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
116124734
215114735
315114736
415104737
514104738
614104639
714104640
813104540
913104541
1013104442
1113104443
1203104343
1303104344
1403104245
150394146
160394047
170393948
180393849
190393751
200393751
210393652
220393553
230393553
240393553
250393553
260393553
271393552
281393651
291393750
301393750
311393849

Wind in July

Winds average 5 mph in July.

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

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 12 min at the start of July to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over July. Sunrise moves from 5:32 AM to 5:50 AM, and sunset from 7:47 PM to 7:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.25:327:47
214.25:337:47
314.25:337:47
414.25:347:47
514.25:347:47
614.25:347:47
714.25:357:46
814.25:357:46
914.25:367:46
1014.25:377:46
1114.15:377:46
1214.15:387:45
1314.15:387:45
1414.15:397:45
1514.15:397:44
1614.15:407:44
1714.05:417:43
1814.05:417:43
1914.05:427:42
2014.05:437:42
2114.05:437:41
2213.95:447:41
2313.95:457:40
2413.95:457:40
2513.95:467:39
2613.95:477:38
2713.85:477:38
2813.85:487:37
2913.85:497:36
3013.85:497:35
3113.75:507:35

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.98 kWh/m².

For context, solar energy here swings from a low near 2.3 kWh/m² to a high of 6.07 kWh/m² in June across the year — July's 5.98 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.0Intense
46.0Intense
56.0Intense
66.0Intense
76.0Intense
86.0Intense
96.0Intense
106.0Intense
116.0Intense
126.0Intense
136.0Intense
146.0Intense
156.0Intense
166.0Intense
176.0Bright
186.0Bright
196.0Bright
206.0Bright
216.0Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in July

Is July a good time to visit Suwanee?

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

4.0
Sightseeing
9th-best month of the year
5.9
Beach & pool
5th-best month of the year

July is a reasonable time to visit Suwanee for sightseeing.

What to pack for Suwanee in July

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

In July, Suwanee sees daytime highs around 88°F and nights near 71°F. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

light clothesrain gearsun protection

UV index in Suwanee in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Suwanee peaks around June 23 at about 10 (very high) — 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 — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 23UV 10Dec 20UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7High
May8Very high
Jun10Very high
Jul10Very high
Aug8Very high
Sep7Very high
Oct5High
Nov4Moderate
Dec3Moderate

Air quality in Suwanee in July

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Suwanee is worst in July — around 21 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (January, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1621 µg/m³Jan 118 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb11Good
Mar13Moderate
Apr12Moderate
May15Moderate
Jun18Moderate
Jul21Moderate
Aug18Moderate
Sep13Moderate
Oct11Good
Nov10Good
Dec8Good
Location & terrain

Where is Suwanee?

Suwanee sits at 34.1°N, 84.1°W, 1,001 ft above sea level, in United States. The nearest listed city is Sugar Hill, 4.3 mi away.

Topography around Suwanee

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

Within 2 miles, the terrain around Suwanee has only modest variations in elevation — a maximum elevation change of 279 ft around an average of 1,030 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 797 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 3,950 ft.

The land around Suwanee is covered by trees (59%) and artificial surfaces (31%) within 2 miles, trees (61%) and artificial surfaces (25%) within 10 miles, and trees (82%) within 50 miles.

2 miles
279 ft
10 miles
797 ft
50 miles
3,950 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Sugar Hill 4.3 mi · Duluth 5.6 mi · Johns Creek 7.5 mi · Lawrenceville 8.1 mi · Peachtree Corners 11 mi · Norcross 11 mi · Alpharetta 13 mi · Snellville 14 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 Suwanee (34.0515°, -84.0713°, elevation 1,001 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).