As of 01:29 AST

Coamo, PR weather in September

79°

Coamo, Sunday, 9 August, 01:29

Light rain. Feels like 79°. High 91°, low 76°.

Pressure30.00 inHg

Wind1 mph NW

Humidity84%

Visibility6.2 mi

Dew point74°

See detailed hourly forecast

In September, Coamo, PR averages a high of 86.1° and a low of 74.7°. About 5.6 inches of precipitation fall over the month (21 wet days). The record high is 95.2° (2021) and the record low 69.3° (2025). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	87.1°	75°	68%	92.3° (1996)	72.3° (1976)
2	86.7°	75°	75%	91.6° (1967)	71.4° (1981)
3	87.1°	75°	60%	93° (2021)	72.5° (1965)
4	87.1°	75°	62%	93.6° (2021)	71.2° (2025)
5	86.7°	75°	58%	95° (2021)	70° (1961)
6	86.7°	74.8°	60%	95.2° (2021)	70.7° (1983)
7	86.7°	74.8°	62%	93.9° (2021)	71.1° (2025)
8	86.4°	75°	70%	93.9° (1997)	72.3° (2023)
9	86.5°	75°	73%	92.3° (1975)	69.3° (2025)
10	86.5°	75°	72%	91.8° (1997)	71.8° (1984)
11	86.5°	74.8°	80%	91.4° (1997)	71.4° (1971)
12	86.4°	74.8°	63%	91° (2012)	71.4° (2025)
13	86.5°	75°	65%	92.3° (2021)	71.8° (2025)
14	86.4°	75°	62%	91.9° (2019)	73.4° (1988)
15	86°	75°	70%	91.4° (2019)	73.2° (1961)
16	86°	74.8°	67%	91.2° (2022)	71.6° (1980)
17	86°	74.8°	73%	91° (2024)	71.6° (1961)
18	85.8°	74.7°	82%	90.5° (1983)	71.6° (1960)
19	85.8°	74.5°	80%	90.7° (1971)	70.9° (2025)
20	85.5°	74.3°	80%	89.6° (1986)	71.8° (1962)
21	85.6°	74.5°	75%	90° (2023)	72.9° (1977)
22	85.3°	74.5°	73%	90.1° (2023)	71.8° (2025)
23	85.6°	74.5°	63%	89.4° (2025)	70° (1984)
24	85.5°	74.7°	73%	92.1° (1971)	71.1° (1961)
25	85.6°	74.7°	80%	92.3° (2024)	71.6° (1974)
26	85.6°	74.5°	63%	92.1° (2023)	71.8° (1976)
27	85.8°	74.5°	73%	90.9° (1987)	71.1° (2025)
28	85.1°	74.3°	80%	91.8° (2023)	70.7° (2025)
29	85.5°	74.3°	77%	91.2° (2023)	71.2° (1976)
30	85.1°	74.3°	77%	91.2° (2023)	71.6° (1975)