Weather StoryAlmanac, microseasons, and the day's weather story.

Weather in Port Royal, South Carolina

Roses open on the Piedmont edge. Day 59 of spring. Read this microseason across nine climate regions →

Port Royal, SC
Sunday, May 17 at 1:31 AM
73
°
Partly Cloudy
Feels like
76°
Humidity
82%
Wind
6 mph
Sunrise
6:23 AM
Sunset
8:14 PM
Port Royal, SC
Hour by hour · 24h
73°
9p
69°
10p
68°
11p
64°
12a
64°
1a
62°
2a
63°
3a
60°
4a
58°
5a
57°
6a
56°
7a
59°
8a
63°
9a
67°
10a
71°
11a
73°
12p
76°
1p
80°
2p
78°
3p
76°
4p
76°
5p
74°
6p
73°
7p
71°
8p
L 56°H 80°
Port Royal, SC
7-day forecast
  1. Today
    May 16
    Overcast
    82°59°
  2. Sunday
    May 17
    Overcast
    84°70°
  3. Monday
    May 18
    Clear
    84°66°
  4. Tuesday
    May 19
    Overcast
    85°66°
  5. Wednesday
    May 20
    Overcast
    88°68°
  6. Thursday
    May 21
    Mostly Clear
    88°70°
  7. Friday
    May 22
    Partly Cloudy
    31%
    86°70°
Port Royal, SC
Anemometer · 24h winds · from true
NESW
From · True
ESE
113° · veering 65°
Direction
ESE
113°
Sustained
6
mph
Gust
16
mph
Peak 24h
16
avg 6
Beaufort · 2 · LIGHT BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 6 · pk 16 @ 9:00p
−24h−18h−12h−6hnow
Light breeze veering 65° from the ese.
Port Royal, SC
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1020.7
+0.1 mb in 3h · falling · 30.14 inHg
Now
1020.7
mb
3h
+0.1
mb
12h
-1.1
mb
24h
+1.0
mb
Regime · FAIR
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10191022
−24h−18h−12h−6hnow
Fair, steady air — a quiet anticyclone holds the sky.
Port Royal, SC
Air quality
53
AQI
Moderate
PM 2.5
8.9 μg/m³
PM 10
12.9 μg/m³
NO₂
2.7 μg/m³
Ozone
95.0 μg/m³
UV Index
0.0 Low
Port Royal, SC
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
9:58 AM
Sunrise
6:23 AM
Daylight
13h 51m
Sunset
8:14 PM
Civil dusk
12:42 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Port Royal, SC
The moon
New Moon
0% illuminated
Moonrise
10:37 AM
Moonset
12:35 AM
In sign
♉︎ Taurus
Port Royal, SC
Microseason · 28 of 72
May 16–20

Roses open on the Piedmont edge

insect
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Port Royal at a glance

  • Today vs. normal: 6°F below the seasonal normal for this latitude
  • Last frost: March 1 (climatological average for this latitude)
  • Microseason: 28 of 72, May 16–20
  • Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.

Right now in the garden

Peak growing season

As of May 17, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

ZIP codes in Port Royal

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.