As of 00:58 AST

San Isidro, PR weather in May

82°

San Isidro, Sunday, 9 August, 00:58

Clear. Feels like 88°. High 92°, low 78°.

Pressure30.00 inHg

Wind1 mph NE

Humidity75%

Visibility6.2 mi

Dew point73°

See detailed hourly forecast

In May, San Isidro, PR averages a high of 85° and a low of 74.5°. About 5.5 inches of precipitation fall over the month (22 wet days). The record high is 93.6° (2005) and the record low 66.6° (1974). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	84.4°	73.2°	62%	90.7° (1995)	66.6° (1974)
2	84.6°	73.6°	75%	90.7° (1995)	67.3° (1974)
3	84.6°	73.8°	65%	90.5° (1995)	69.4° (1974)
4	84.6°	73.8°	60%	89.2° (2023)	69.6° (1962)
5	85.1°	73.9°	67%	90.3° (1980)	69.3° (1962)
6	84.6°	73.9°	73%	89.8° (1969)	70.3° (1962)
7	84.6°	73.9°	67%	90° (1980)	71.6° (1986)
8	84.4°	73.6°	75%	90° (1980)	69.1° (1982)
9	84.4°	73.9°	83%	90.3° (1980)	71.2° (1989)
10	84.7°	74.1°	70%	89.8° (1998)	70.2° (1963)
11	84.6°	74.1°	78%	90.1° (1998)	67.3° (1986)
12	84.6°	74.1°	77%	89.8° (1998)	68.7° (2017)
13	84.7°	74.5°	80%	88.9° (2008)	70° (1972)
14	84.7°	74.5°	62%	90° (2008)	71.4° (1963)
15	84.9°	74.5°	65%	90.5° (1977)	70° (1970)
16	85.1°	74.5°	77%	90° (2019)	70.5° (1962)
17	85.3°	74.7°	75%	90° (2023)	71.1° (1970)
18	85.3°	74.8°	72%	89.2° (2022)	71.6° (1970)
19	85.5°	74.8°	70%	89.4° (2021)	71.8° (1971)
20	85.5°	74.8°	72%	89.6° (1995)	71.2° (1971)
21	85.3°	74.8°	63%	90.1° (2024)	72.3° (1979)
22	85.3°	75°	70%	89.8° (2020)	72.3° (1979)
23	85.3°	75.2°	77%	93.6° (2005)	72.7° (1974)
24	85.6°	75.2°	67%	90.7° (2020)	72.5° (1971)
25	85.6°	75.2°	60%	89.8° (1996)	72.5° (1971)
26	85.8°	75.2°	77%	90.7° (2023)	72.1° (2022)
27	85.5°	75.4°	75%	90.3° (2020)	72.9° (1989)
28	85.5°	75.2°	77%	89.8° (1973)	73° (1962)
29	85.5°	75.6°	73%	89.1° (1972)	72.1° (1986)
30	85.5°	75.2°	77%	89.4° (2024)	71.6° (1989)
31	85.6°	75.4°	75%	90° (2024)	72.9° (1989)