As of 00:07 PDT

Tustin, CA weather in May

73°

Tustin, Sunday, 9 August, 00:07

Clear. Feels like 74°. High 97°, low 70°.

Pressure29.85 inHg

Wind1 mph S

Humidity80%

Visibility6.2 mi

Dew point66°

See detailed hourly forecast

In May, Tustin, CA averages a high of 71.7° and a low of 56.3°. About 0.4 inches of precipitation fall over the month (2 wet days). The record high is 97.7° (2014) and the record low 45.5° (1967). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	70.9°	54.5°	7%	91.8° (2014)	45.5° (1967)
2	72°	55.2°	2%	91.6° (2004)	48° (1971)
3	72°	55.4°	5%	93.4° (2004)	48.7° (1967)
4	70.7°	55.8°	12%	88.3° (2018)	50.2° (1967)
5	69.8°	55.4°	10%	92.5° (1990)	49.1° (1969)
6	70°	55.2°	13%	91.9° (1990)	47.7° (1975)
7	70.9°	55.2°	17%	89.8° (2020)	47.1° (1964)
8	70.9°	55.4°	5%	90° (2007)	47.5° (2017)
9	71.1°	55.6°	5%	91.9° (2025)	48.4° (1979)
10	70.9°	55.8°	5%	97° (2025)	49.8° (2022)
11	71.2°	55.6°	0%	90.1° (2025)	47.1° (2022)
12	72.5°	55.2°	5%	89.4° (1979)	48.6° (1967)
13	72.9°	56.3°	7%	93.2° (2014)	49.3° (1998)
14	72.7°	56.5°	2%	95.5° (2014)	50.7° (1961)
15	72°	56.5°	8%	97.7° (2014)	50° (1998)
16	71.8°	56.3°	7%	90.7° (1967)	50.9° (1962)
17	72.5°	56.5°	7%	88.5° (2008)	48.9° (1962)
18	72.3°	56.7°	5%	86.5° (1986)	49.8° (1977)
19	72.3°	56.5°	3%	84.6° (2017)	50.4° (1991)
20	71.8°	56.8°	7%	92.1° (2017)	48.2° (1972)
21	71.8°	57°	3%	88.9° (2017)	51.6° (1962)
22	71.4°	56.7°	7%	83.5° (1988)	49.5° (1975)
23	70.9°	56.8°	3%	80.6° (2001)	50.4° (2021)
24	71.2°	56.8°	5%	86.9° (2021)	49.8° (2019)
25	70.9°	56.8°	0%	86.5° (1974)	49.8° (1980)
26	71.2°	56.8°	2%	84° (1968)	52.3° (1977)
27	72°	56.8°	3%	87.3° (1997)	50.9° (2019)
28	73°	57.4°	3%	89.8° (1973)	50.4° (2019)
29	73.2°	57.7°	3%	95.4° (1984)	52.3° (1964)
30	73.4°	57.6°	0%	90° (2025)	51.3° (2011)
31	72.9°	57.7°	2%	83.8° (2025)	52.5° (1966)