Oswego weather in July

In July, Oswego sees average daytime highs of 75°F and overnight lows near 66°F, with 4.4 in of rain across 12.1 wet days and about 14.9 hours of daylight. It is the 2nd-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 73°F in the first days to 76°F by the end. The sky is clear or mostly clear about 43% of the time in July, and the air most often feels muggy.

Daylight stretches from about 15 h 12 min at the start of July to 14 h 30 min by month's end. Set against the rest of the year, July is Oswego's 1st-clearest and 12th-windiest month. For the whole year in context, see Oswego's year-round climate.

Daytime high
75°
2nd warmest
Overnight low
66°
11th coldest
Rainfall
4.4 in
12.1 wet days
Daylight
14 h 54 min
4:44 AM – 7:40 PM
Cloud cover
49%
1st clearest
Wind
7 mph
12th windiest
Solar energy
6.3 kWh/m²
Travel score
6.8
out of 10

Oswego is city in and county seat of Oswego County, New York, United States.

Density
612/km²
people per km²
Founded
1796

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 73°F in the first days to 76°F by the end.

A typical July day in Oswego reaches about 75°F in the afternoon and slips back to 66°F overnight — a 9°F spread between the day's warmth and the night's chill. On most days the high lands between 69°F and 81°F. Set against its neighbours, July runs about 7°F warmer than June and on par with August.

50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
17263
27363
37364
47364
57364
67364
77464
87465
97465
107465
117465
127466
137566
147566
157566
167566
177567
187567
197567
207667
217667
227667
237667
247667
257667
267667
277667
287667
297667
307667
317667

How July really feels in Oswego

Once humidity and wind are folded in, July averages 0 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
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

July sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Oswego weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan32° / 22°4.117.715.69.10.0
Feb32° / 21°3.112.41010.20.0
Mar38° / 27°3.512.46.511.60.0
Apr48° / 38°4.412.82.113.21.6
May58° / 47°3.611.4014.54.2
Jun68° / 58°4.212015.26.1
Jul75° / 66°4.412.1014.96.8
Aug75° / 66°4.312.7013.86.8
Sep69° / 59°4.411.5012.36.2
Oct58° / 49°5.415.4010.83.8
Nov47° / 38°4.616.23.99.51.3
Dec38° / 30°4.818.911.88.80.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in July, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 19% of July, with mostly cloudy or overcast conditions the remaining 37%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26337
36436
46436
56436
66436
76436
86436
96436
106436
116436
126436
136337
146337
156337
166238
176238
186238
196238
206139
216139
226139
236139
246139
256139
266139
276139
286238
296238
306238
316337

Chance of precipitation in July

Any precipitation

Oswego gets around 4.4 in of rain over 12.1 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 40% and peaks near 43% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
238
338
438
538
637
737
837
937
1037
1137
1238
1338
1438
1539
1639
1739
1840
1940
2041
2141
2242
2342
2442
2542
2643
2743
2843
2943
3043
3143

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the muggy band about 34% of days. Sticky, muggy-or-worse air turns up on roughly 44% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
192935233
292935244
382835254
472835255
572735265
672635276
762535277
862434287
962334298
1052234319
1152133329
12520333310
13519323410
14518323510
15517323611
16417313711
17416313711
18416313811
19415303911
20415304011
21415294012
22414294112
23414294112
24414294112
25414294112
26414294112
27414294012
28414304012
29415304012
30415303912
31415303912

Wind in July

Winds average 7 mph in July, the calmest month.

Across July, daily wind ranges from about 7 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
17light breeze
27light breeze
37light breeze
47light breeze
57light breeze
67light breeze
77light breeze
87light breeze
97light breeze
107light breeze
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 h 12 min at the start of July to 14 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over July. Sunrise moves from 4:34 AM to 4:58 AM, and sunset from 7:45 PM to 7:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.24:347:45
215.24:347:45
315.24:357:45
415.24:357:45
515.14:367:44
615.14:367:44
715.14:377:44
815.14:387:44
915.14:387:43
1015.14:397:43
1115.04:407:42
1215.04:417:42
1315.04:417:41
1415.04:427:41
1515.04:437:40
1614.94:447:40
1714.94:457:39
1814.94:467:38
1914.94:467:37
2014.84:477:37
2114.84:487:36
2214.84:497:35
2314.74:507:34
2414.74:517:33
2514.74:527:32
2614.64:537:31
2714.64:547:30
2814.64:557:29
2914.54:567:28
3014.54:577:27
3114.54:587:26

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.3 kWh/m².

For context, solar energy here swings from a low near 1.22 kWh/m² to a high of 6.36 kWh/m² in June across the year — July's 6.3 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.4Intense
126.4Intense
136.4Intense
146.4Intense
156.3Intense
166.3Intense
176.3Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.0Intense
276.0Intense
286.0Intense
296.0Bright
306.0Bright
316.0Bright
Planning a trip in July

Is July a good time to visit Oswego?

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

6.8
Sightseeing
1st-best month of the year
5.6
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Oswego for sightseeing.

What to pack for Oswego in July

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

In July, Oswego sees daytime highs around 75°F and nights near 66°F. Pack sun protection. Worth having: light clothes and rain gear. About 12 days see rain.

sun protectionlight clothesrain gear

Sea temperature near Oswego in July

The nearest coast averages about 69°F in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 8 mi away) is warmest in August at about 72°F and coldest in March near 37°F.

It's comfortable for a long swim from Jul 15 to Sep 13 — about 2 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan40Bracing
Feb37Bracing
Mar37Bracing
Apr38Bracing
May43Bracing
Jun57Bracing
Jul69Refreshing
Aug72Refreshing
Sep68Cool
Oct58Bracing
Nov50Bracing
Dec44Bracing

UV index in Oswego in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Oswego peaks around July 12 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 12UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5High
May7Very high
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Oswego?

Oswego sits at 43.5°N, 76.5°W, 285 ft above sea level, in United States. The nearest listed city is Clay, 25 mi away.

Topography around Oswego

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

Within 2 miles, the terrain around Oswego has only modest variations in elevation — a maximum elevation change of 240 ft around an average of 305 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 354 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,801 ft.

The land around Oswego is covered by trees (39%) and water (30%) within 2 miles, water (47%) and trees (42%) within 10 miles, and trees (41%) and water (39%) within 50 miles.

2 miles
240 ft
10 miles
354 ft
50 miles
1,801 ft
treesgrasslandcroplandartificial surfaceswaterwetland
July weather nearby: Clay 25 mi · Cicero 27 mi · Syracuse 34 mi · Auburn 36 mi · Watertown 47 mi · Prince Edward 53 mi · Kingston 53 mi · Rome 55 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 Oswego (43.4554°, -76.5105°, elevation 285 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).