- Latitude: 33.439
- Longitude: -117.19
High Temperatures
On May 11 in this location the average high temperature is 70.6 °F (21.5 °C). The lowest recored high temperature was 58.8 °F (14.9 °C) in 1989 and the highest recored high temperature was 99.3 °F (37.4 °C) in 2025. The high temperature is usually* between 66.6 °F (19.2 °C) and 74.7 °F (23.7 °C). About a quarter of the time, the high temperature is less than 66.6 °F (19.2 °C), and another quarter of the time, the high temperature is greater than and 74.7 °F (23.7 °C). About 95% of the time, the high temperature has been between 58.8 °F (14.9 °C) and 82.4 °F (28.0 °C).
Low Temperatures
On May 11 in this location the average low temperature is 54.7 °F (12.6 °C). The lowest recored low temperature was 39.0 °F (3.9 °C) in 2022 and the lowest recored low temperature was 69.3 °F (20.7 °C) in 2025. The low temperature is usually* between 51.6 °F (10.9 °C) and 57.9 °F (14.4 °C). About a quarter of the time, the low temperature is less than 51.6 °F (10.9 °C), and another quarter of the time, the low temperature is greater than and 57.9 °F (14.4 °C). About 95% of the time, the low temperature has been between 45.5 °F (7.5 °C) and 63.9 °F (17.7 °C).
Frost
On May 11 in this location expect the temperatures to drop below freezing for a risk of frost about 0.0% of the time.
Data Source(s)
The data used to compute the average high/low temperatures for this location were taken from the following stations:
- MARINE CORPS AIR STATION — Integrated Surface Dataset (ISD) station ID: 722926 — Weather Bureau Army Navy (WBAN): 03154 — from year 1973 to 2025
- MCCLELLAN-PALOMAR AIRPORT — Integrated Surface Dataset (ISD) station ID: 722927 — Weather Bureau Army Navy (WBAN): 03177 — from year 2006 to 2025
- OCEANSIDE MUNICIPAL ARPT — Integrated Surface Dataset (ISD) station ID: 722934 — Weather Bureau Army Navy (WBAN): 53121 — from year 2006 to 2025
- FALLBROOK 5 NE — Weather Bureau Army Navy (WBAN): 53151 — from year 2008 to 2025
- MCOLF CAMP PENDLETON RED BEAC — Integrated Surface Dataset (ISD) station ID: 722928 — Weather Bureau Army Navy (WBAN): 00369 — from year 2016 to 2023
- MCOLF CAMP PENDLETON (RED BEA — Integrated Surface Dataset (ISD) station ID: 722928 — from year 2010 to 2018
- MC CLELLAN PALOMAR — Integrated Surface Dataset (ISD) station ID: 722927 — from year 1973 to 2005
- OCEANSIDE MUNI — Integrated Surface Dataset (ISD) station ID: 722934 — from year 2000 to 2005
- OCEANSIDE HARBOR — Integrated Surface Dataset (ISD) station ID: 722929 — from year 1986 to 1993
- CAMP PENDLETON MCAS — Weather Bureau Army Navy (WBAN): 03154 — from year 1967 to 1971
- OCEANSIDE CAA AP — Weather Bureau Army Navy (WBAN): 23181 — from year 1949 to 1951