Port Royal weather in July

In July, Port Royal sees average daytime highs of 29°C and overnight lows near 25°C, with 56 mm of rain across 10.5 wet days and about 13 hours of daylight. It is the 2nd-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 43% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 13 h 06 min at the start of July to 12 h 48 min by month's end. Set against the rest of the year, July is Port Royal's 6th-clearest and 2nd-windiest month. For the whole year in context, see Port Royal's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
25°
11th coldest
Rainfall
56 mm
10.5 wet days
Daylight
13 hours
5:44 AM – 6:42 PM
Cloud cover
51%
6th clearest
Wind
14 km/h
2nd windiest
Solar energy
6.73 kWh/m²
Travel score
5.4
out of 10

Port Royal is settlement in Jamaica.

Founded
1494

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 29°C through the month.

A typical July day in Port Royal reaches about 29°C in the afternoon and slips back to 25°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°C. Set against its neighbours, July runs on par with June and on par with August.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12925
22925
32925
42925
52925
62925
72925
82925
92925
102925
112925
122925
132925
142925
152925
162925
172925
182925
192925
202925
212925
222925
232925
242925
252925
262925
272925
282925
292925
302925
312925

How July really feels in Port Royal

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

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
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.

Port Royal weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 22°277.9117.4
Feb26° / 22°217.111.47.5
Mar26° / 22°337.911.97.3
Apr27° / 23°35912.46.9
May28° / 24°9514.112.85.8
Jun29° / 25°7511.613.15.4
Jul29° / 25°5610.5135.4
Aug29° / 25°851412.64.9
Sep29° / 25°12818.312.14.4
Oct28° / 24°15321.711.64.4
Nov27° / 24°8113.311.26.0
Dec27° / 23°439.610.96.9

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 18% of July, with mostly cloudy or overcast conditions the remaining 39%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25842
35941
45941
55842
65941
75941
85941
95941
105941
115941
126040
136040
146040
156040
166040
176238
186238
196238
206337
216337
226337
236535
246535
256535
266535
276535
286436
296436
306436
316436

Chance of precipitation in July

Any precipitation

Port Royal gets around 56 mm of rain over 10.5 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 34% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
133
233
333
433
534
634
734
835
935
1035
1135
1235
1335
1435
1534
1634
1734
1833
1933
2032
2132
2232
2332
2432
2533
2633
2733
2834
2934
3035
3136

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 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
11963
22953
32953
42953
52953
62953
72953
82953
92953
102953
112953
121963
131963
141963
151963
161963
171954
181954
191954
201954
211945
221945
231945
241936
251936
260946
270946
280937
290937
300937
310937

Wind in July

Winds average 14 km/h in July.

Across July, daily wind ranges from about 13 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 13 h 06 min at the start of July to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over July. Sunrise moves from 5:39 AM to 5:49 AM, and sunset from 6:43 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:396:43
213.15:396:43
313.15:396:43
413.15:406:43
513.05:406:43
613.05:406:43
713.05:416:43
813.05:416:43
913.05:416:43
1013.05:426:43
1113.05:426:43
1213.05:426:43
1313.05:436:43
1413.05:436:43
1513.05:436:42
1613.05:446:42
1713.05:446:42
1813.05:446:42
1913.05:456:42
2012.95:456:42
2112.95:456:41
2212.95:466:41
2312.95:466:41
2412.95:466:41
2512.95:476:40
2612.95:476:40
2712.95:476:40
2812.95:486:39
2912.95:486:39
3012.85:486:39
3112.85:496:38

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.73 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.46 kWh/m² to a high of 6.73 kWh/m² in July across the year — July's 6.73 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.7Intense
46.7Intense
56.7Intense
66.7Intense
76.7Intense
86.7Intense
96.7Intense
106.7Intense
116.7Intense
126.7Intense
136.7Intense
146.7Intense
156.7Intense
166.7Intense
176.7Intense
186.7Intense
196.7Intense
206.7Intense
216.7Intense
226.7Intense
236.7Intense
246.7Intense
256.7Intense
266.7Intense
276.7Intense
286.7Intense
296.7Intense
306.7Intense
316.7Intense
Planning a trip in July

Hazard calendar for Port Royal

In seasonPeak

In July, Port Royal sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

Port Royal sits in the Atlantic hurricane belt; the season peaks August–October.

Port Royal's rainy season runs August–November, when most of the year's rain falls.

Atlantic hurricane
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is July a good time to visit Port Royal?

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

5.4
Sightseeing
8th-best month of the year
7.1
Beach & pool
5th-best month of the year

July is a reasonable time to visit Port Royal for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Port Royal in July

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

In July, Port Royal sees daytime highs around 29°C and nights near 25°C. Pack light clothes and sun protection. Worth having: rain gear. About 11 days see rain.

light clothessun protectionrain gear

Sea temperature near Port Royal in July

The nearest coast averages about 29°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in September at about 29°C and coldest in February near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr28Warm
May28Tropical
Jun28Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Port Royal in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Port Royal peaks around April 19 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highApr 19UV 12Dec 16UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar12Extreme
Apr13Extreme
May12Extreme
Jun13Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec7Very high

Air quality in Port Royal 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 Port Royal is worst in June — around 32 µg/m³ PM2.5 (moderate), about 4.2× the cleanest month (December, 8 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 2332 µg/m³Dec 198 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb10Good
Mar10Good
Apr12Good
May19Moderate
Jun32Moderate
Jul31Moderate
Aug25Moderate
Sep17Moderate
Oct14Moderate
Nov9Good
Dec8Good
Location & terrain

Where is Port Royal?

Port Royal sits at 17.9°N, 76.8°W, 0 m above sea level, in Jamaica. The nearest listed city is Portmore, 6.0 km away.

Spanish TownOld HarbourLinsteadMay Pen

Topography around Port Royal

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Port Royal.

Within 3 km, the terrain around Port Royal has only modest variations in elevation — a maximum elevation change of 6 m around an average of 0 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 767 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,229 m.

The land around Port Royal is covered by water (94%) within 3 km, water (46%) and trees (29%) within 16 km, and water (59%) and trees (34%) within 80 km.

3 km
6 m
16 km
767 m
80 km
2,229 m
treesgrasslandcroplandartificial surfaceswatermangroves
July weather nearby: Portmore 6.0 km · Kingston 8.0 km · Half Way Tree 9.0 km · New Kingston 10 km · Spanish Town 14 km · Old Harbour 28 km · Linstead 30 km · May Pen 43 km

Jamaica travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
110 V · 50 Hz
Prices
≈ 60% of US
price level, 2025
GDP per capita
$8,003
2025
Happiness
6.3 / 10
World Happiness, 2025
Homicide rate
49.4
per 100k, 2023
Road deaths
15.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
Religion
Protestant 65%none 21%other 7%Roman Catholic 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 Port Royal (17.9374°, -76.8406°, elevation 0 m), 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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. 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).