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

Weather in Río Blanco, Puerto Rico

Flowers spill across the islands. Day 59 of spring. Read this microseason across nine climate regions →

Río Blanco, PR
Sunday, May 17 at 4:03 AM
76
°
Light Drizzle
Feels like
82°
Humidity
89%
Wind
9 mph
Sunrise
5:49 AM
Sunset
6:49 PM
Río Blanco, PR
Hour by hour · 24h
76°
24%
12a
75°
55%
1a
73°
80%
2a
73°
91%
3a
72°
95%
4a
72°
94%
5a
73°
87%
6a
75°
76%
7a
79°
65%
8a
81°
55%
9a
83°
46%
10a
84°
41%
11a
84°
46%
12p
83°
56%
1p
85°
61%
2p
84°
54%
3p
83°
42%
4p
81°
33%
5p
80°
31%
6p
78°
33%
7p
77°
35%
8p
77°
34%
9p
77°
33%
10p
77°
37%
11p
L 72°H 85°
Río Blanco, PR
7-day forecast
  1. Today
    May 17
    Heavy Drizzle
    96%
    82°74°
  2. Monday
    May 18
    Heavy Drizzle
    94%
    82°72°
  3. Tuesday
    May 19
    Light Rain
    80%
    82°72°
  4. Wednesday
    May 20
    Rain
    87%
    80°71°
  5. Thursday
    May 21
    Drizzle
    78%
    83°73°
  6. Friday
    May 22
    Drizzle
    78%
    82°72°
  7. Saturday
    May 23
    Drizzle
    82%
    81°75°
Río Blanco, PR
Anemometer · 24h winds · from true
NESW
From · True
E
089° · backing 7°
Direction
E
089°
Sustained
9
mph
Gust
19
mph
Peak 24h
25
avg 9
Beaufort · 3 · GENTLE 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 9 · pk 25 @ 3:00p
−24h−18h−12h−6hnow
Light breeze backing 7° from the e.
Río Blanco, PR
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1013.2
+0.3 mb in 3h · falling · 29.92 inHg
Now
1013.2
mb
3h
+0.3
mb
12h
+1.2
mb
24h
+0.3
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10121015
−24h−18h−12h−6hnow
Air sits at the threshold — small shifts decide the day.
Río Blanco, PR
Air quality
45
AQI
Good
PM 2.5
10.0 μg/m³
PM 10
19.7 μg/m³
NO₂
0.6 μg/m³
Ozone
47.0 μg/m³
UV Index
0.0 Low
Río Blanco, PR
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
9:27 AM
Sunrise
5:49 AM
Daylight
13h 00m
Sunset
6:49 PM
Civil dusk
11:14 PM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Río Blanco, PR
The moon
New Moon
0% illuminated
Moonrise
10:11 AM
Moonset
In sign
♊︎ Gemini
Río Blanco, PR
Microseason · 28 of 72
May 16–20

Flowers spill across the islands

bird
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Río Blanco at a glance

  • Today vs. normal: 17°F below the seasonal normal for this latitude
  • Last frost: December 6 (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 Río Blanco

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.