A WALK AROUND TOWN
La Mesa Historic Porter Hill Walk
Recorded footage by Terra K.. Not live road conditions.
Watch on YouTube ↗
Weather · September
La Mesa weather in September
Average highs of 81°F, lows of 64°F and 0.20 in of rain, from 30 years of weather records.
September is La Mesa’s 2nd warmest month, with average highs of 81°F and lows of 64°F. That is 1° cooler than August, and 8° above the yearly average high.
- Average high
- 81°F
- Average low
- 64°F
- Precipitation
- 0.20 in
- Wet days
- 1
- Sunrise · sunset
- 6:31 AM · 6:55 PM
September across the year
High and low Rain
What to wear in September
- Warm days: shorts and T-shirts.
September is good for
What’s on in La Mesa in September
See all upcoming events and school days off.
Around La Mesa
See La Mesa
A look around town before you go.
THINGS TO DO · YOUTUBE SHORT
Checking out Lake Murray La Mesa Cool place to chill relax and fish!
An activity Short shared by Fish with Chilo.
Watch on YouTube ↗September compared with the months around it
Planning a trip? See the best time to visit La Mesa and today’s forecast.
Questions
How hot does it get in La Mesa in September?
Average highs are 81°F and average lows 64°F, for a daily mean of 73°F. Individual days run hotter or colder than these 30-year averages.
Does it rain in La Mesa in September?
September averages 0.20 in of precipitation over about 1 days with at least 0.01 in. It is the 9th wettest month of the year.
What time is sunset in La Mesa in September?
Around mid-September the sun rises about 6:31 AM and sets about 6:55 PM, for roughly 12.4 hours of daylight.
Is September a good time to visit La Mesa?
The mildest months for visiting are June, July, August. September is warm, with Halloween events.
NOAA U.S. Climate Normals 1991–2020, San Diego Montgomery Fld station (7.5 mi from downtown). Sunrise and sunset are calculated for September 15 at the city’s coordinates.