Catalina climate

Catalina Weather in September

NOAA 1991-2020 normals for Catalina SP, 9.8 km from Catalina

Average highs run from 98°F on September 1 to 92°F on September 30, and lows from 66°F to 56°F. Normal precipitation for the month is 1.17 in.

September day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Catalina, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
96°F
Average low
62°F
Precipitation
1.17 in
Record high
106°FSep 10, 2023
Record low
41°FSep 26, 1958
Chance of a freeze
0%
Days of 90°F or more
26.2
Daylight
12 h 49 min to 11 h 52 min
Cloud cover
33%
Humidity
39%
Dew point
51°F
Wind
6.9 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Sep 198°F66°F102°F 197059°F 19660%
Sep 298°F66°F102°F 197062°F 19610%
Sep 398°F66°F102°F 197949°F 19610%
Sep 498°F66°F103°F 197345°F 19610%
Sep 598°F66°F103°F 197956°F 19610%
Sep 698°F65°F103°F 197958°F 19760%
Sep 798°F65°F103°F 197956°F 19760%
Sep 898°F65°F100°F 197755°F 19610%
Sep 997°F65°F101°F 202357°F 19620%
Sep 1097°F64°F106°F 202357°F 20200%
Sep 1197°F64°F101°F 197159°F 20110%
Sep 1297°F64°F99°F 197958°F 19610%
Sep 1397°F63°F100°F 195657°F 19590%
Sep 1496°F63°F100°F 195455°F 19580%
Sep 1596°F63°F101°F 197155°F 19580%
Sep 1696°F62°F100°F 197350°F 19590%
Sep 1795°F62°F101°F 195649°F 19590%
Sep 1895°F61°F100°F 195649°F 19590%
Sep 1995°F61°F100°F 196251°F 19590%
Sep 2095°F60°F98°F 196245°F 19650%
Sep 2194°F60°F99°F 195447°F 19650%
Sep 2294°F60°F96°F 197348°F 19650%
Sep 2394°F59°F95°F 196350°F 19710%
Sep 2493°F59°F98°F 197950°F 19610%
Sep 2593°F58°F97°F 202447°F 19580%
Sep 2693°F58°F98°F 196941°F 19580%
Sep 2792°F57°F100°F 202448°F 19580%
Sep 2892°F57°F100°F 202453°F 20130%
Sep 2992°F56°F97°F 202441°F 19580%
Sep 3092°F56°F98°F 197851°F 19600%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Catalina, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MST).

September 1
sunrise 5:59 AM, sunset 6:48 PM
September 30
sunrise 6:17 AM, sunset 6:09 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00021357 (Catalina SP), public domain. Records: NOAA GHCN-Daily, station USC00027530, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.