Port Arthur weather in June

In June, Port Arthur sees average daytime highs of 87°F and overnight lows near 75°F, with 5.2 in of rain across 15.1 wet days and about 13.9 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 87°F through the month. The sky is clear or mostly clear about 39% of the time in June, and the air most often feels oppressive.

Daylight stretches from about 13 h 48 min at the start of June to 13 h 54 min by month's end. Set against the rest of the year, June is Port Arthur's 4th-clearest and 9th-windiest month. For the whole year in context, see Port Arthur's year-round climate.

Daytime high
87°
3rd warmest
Overnight low
75°
10th coldest
Rainfall
5.2 in
15.1 wet days
Daylight
13 h 54 min
5:19 AM – 7:13 PM
Cloud cover
53%
4th clearest
Wind
7 mph
9th windiest
Solar energy
6.19 kWh/m²
Travel score
4.2
out of 10

Port Arthur is city in Jefferson County, Texas, United States.

Density
148/km²
people per km²
Founded
1895

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

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 87°F through the month.

A typical June day in Port Arthur reaches about 87°F in the afternoon and slips back to 75°F overnight — a 12°F spread between the day's warmth and the night's chill. On most days the high lands between 83°F and 91°F. Set against its neighbours, June runs about 5°F warmer than May and about 2°F cooler than July.

70°80°90°151015202530
Avg high (°F)Avg low (°F)
18673
28673
38674
48674
58674
68774
78774
88774
98775
108775
118775
128775
138775
148775
158775
168775
178776
188776
198876
208876
218876
228876
238876
248876
258876
268876
278876
288876
298876
308876

How June really feels in Port Arthur

Once humidity and wind are folded in, June averages 30 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
30
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

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

Port Arthur weather by month

How June compares with the rest of the year at a glance. June is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan61° / 46°4.79.810.35.1
Feb64° / 49°3.48.710.95.9
Mar70° / 56°3.99.511.86.6
Apr76° / 62°4.49.412.77.0
May83° / 69°3.810.713.56.0
Jun87° / 75°5.215.113.94.2
Jul89° / 77°4.215.913.73.6
Aug89° / 76°4.815.713.13.6
Sep86° / 72°5.412.312.24.8
Oct79° / 63°4.18.811.37.1
Nov70° / 53°4.38.610.56.8
Dec63° / 48°4.79.510.15.6

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 20% of June, with mostly cloudy or overcast conditions the remaining 41%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15941
25941
36040
46040
56139
66238
76238
86337
96337
106337
116337
126238
136337
146238
156139
166139
176139
186040
195941
205842
215743
225644
235644
245545
255446
265446
275446
285446
295446
305446

Chance of precipitation in June

Any precipitation

Port Arthur gets around 5.2 in of rain over 15.1 wet days in June. 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 55% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
145
246
346
447
547
647
747
847
947
1047
1147
1247
1348
1448
1549
1649
1750
1851
1952
2052
2153
2254
2354
2454
2555
2655
2755
2855
2955
3055

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the oppressive band about 58% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
114206312
214196313
314176513
414166514
514156416
614146417
713136518
813126519
923116321
1023106322
1123106223
122396125
131296226
141296127
151286128
161286029
171285831
181275832
191275733
201275634
210165736
220265537
230265339
240265240
250255241
260255043
270245044
280244945
290244847
300234748

Wind in June

Winds average 7 mph in June.

Across June, daily wind ranges from about 6 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
296calm
306calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 13 h 48 min at the start of June to 13 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over June. Sunrise moves from 5:20 AM to 5:22 AM, and sunset from 7:07 PM to 7:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.85:207:07
213.85:207:07
313.85:207:08
413.85:197:08
513.85:197:09
613.85:197:09
713.85:197:10
813.95:197:10
913.95:197:11
1013.95:197:11
1113.95:197:11
1213.95:197:12
1313.95:197:12
1413.95:197:13
1513.95:197:13
1613.95:197:13
1713.95:197:14
1813.95:197:14
1913.95:197:14
2013.95:197:14
2113.95:197:15
2213.95:207:15
2313.95:207:15
2413.95:207:15
2513.95:207:16
2613.95:217:16
2713.95:217:16
2813.95:217:16
2913.95:217:16
3013.95:227:16

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 6.19 kWh/m².

For context, solar energy here swings from a low near 2.67 kWh/m² to a high of 6.21 kWh/m² in July across the year — June's 6.19 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
Planning a trip in June

Hazard calendar for Port Arthur

In seasonPeak

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

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

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

Is June a good time to visit Port Arthur?

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

4.2
Sightseeing
10th-best month of the year
6.0
Beach & pool
5th-best month of the year

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

What to pack for Port Arthur in June

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

In June, Port Arthur sees daytime highs around 87°F and nights near 75°F. Pack light clothes, rain gear and sun protection. About 15 days see rain.

light clothesrain gearsun protection

Sea temperature near Port Arthur in June

The nearest coast averages about 84°F in June — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 19 mi away) is warmest in August at about 86°F and coldest in January near 58°F.

It's comfortable for a long swim from Apr 3 to Nov 19 — about 7.6 months when the water holds above 68°F.

60°70°80°90°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan58Bracing
Feb59Cool
Mar64Cool
Apr71Refreshing
May78Warm
Jun84Tropical
Jul86Tropical
Aug86Tropical
Sep84Tropical
Oct77Warm
Nov69Refreshing
Dec62Cool

UV index in Port Arthur in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June 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 Port Arthur peaks around July 14 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 14UV 10Dec 20UV 4
UV index (midday)Level
Jan4Moderate
Feb6High
Mar7High
Apr10Very high
May10Extreme
Jun10Extreme
Jul10Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov5Moderate
Dec4Moderate

Air quality in Port Arthur in June

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Port Arthur is worst in July — around 22 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (December, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1522 µg/m³Dec 168 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar12Good
Apr11Good
May13Moderate
Jun18Moderate
Jul22Moderate
Aug17Moderate
Sep14Moderate
Oct11Good
Nov9Good
Dec8Good
Location & terrain

Where is Port Arthur?

Port Arthur sits at 29.9°N, 93.9°W, 7 ft above sea level, in United States. The nearest listed city is Groves, 4.3 mi away.

Topography around Port Arthur

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

Within 2 miles, the terrain around Port Arthur has only modest variations in elevation — a maximum elevation change of 56 ft around an average of 7 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 75 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 190 ft.

The land around Port Arthur is covered by artificial surfaces (28%), grassland (24%) and trees (22%) within 2 miles, water (36%) and wetland (30%) within 10 miles, and trees (35%) and water (32%) within 50 miles.

2 miles
56 ft
10 miles
75 ft
50 miles
190 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
June weather nearby: Groves 4.3 mi · Nederland 6.8 mi · Beaumont 17 mi · Orange 19 mi · Sulphur 42 mi · Lake Charles 50 mi · Baytown 63 mi · Galveston 65 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 Port Arthur (29.8852°, -93.9423°, elevation 7 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. 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).