Escondido, CA weather in September
Expect warm, dry weather in Escondido in September, with highs near 87°F and lows near 63°F. Rain falls on about 1 day.
- Normal high
- 87°F
- Normal low
- 63°F
- Wet days
- 1
- 0.2 in total
- Muggy days
- 1
- dew point 65°F+
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 89°F | 84°F |
| Normal low | 65°F | 61°F |
| Chance of a wet day | 2% | 4% |
| Sunrise / sunset | 6:22 am / 7:13 pm | 6:41 am / 6:34 pm |
| Daylight | 12.8 h | 11.9 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical September day
- 6 am60°Fdew point 55°F
- 9 am73°Fdew point 59°F
- Noon80°Fdew point 59°F
- 3 pm78°Fdew point 59°F
- 6 pm70°Fdew point 60°F
- 9 pm65°Fdew point 58°F
NOAA hourly normals (local standard time) from Camp Pendleton MCAS (20 mi away); average wind 4 mph; clear or few clouds in 82% of daytime hours, mostly cloudy or overcast in 12%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F4 of 30
- Hot dayshigh 90°F or more11 of 30
- Muggy daysdaily mean dew point 65°F or more1 of 30
- Wet daysat least 0.01 in of rain or melted snow1 of 30
- Notable rainat least 0.10 in0 of 30
- Freezing nightslow 32°F or below0 of 30
Average days per September, counted from daily records for each year 1991-2020.
Rain in September
Normal precipitation is 0.2 in; a dry September brings about 0.0 in and a wet one about 0.1 in (25th and 75th percentiles). Days with half an inch or more are rare.
How September varies from year to year
- Warmest September, 1991-20202020: average high 93°F
- Coolest September1999: average high 83°F
- Wettest September1997: 2.0 in
- Driest September1992: no measurable precipitation
- Highest reading115°F (September 6, 2020)
- Lowest reading50°F (September 25, 2007)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
September compared with August and October
| August | September | October | |
|---|---|---|---|
| Normal high | 89°F | 87°F | 81°F |
| Normal low | 65°F | 63°F | 57°F |
| Wet days | 0 | 1 | 2 |
| Comfortable days | 1 | 4 | 15 |
| Daylight | 13.3 h | 12.4 h | 11.3 h |
Highs change by -2°F from August and -6°F into October.
Nearby alternatives in September
- Warmer: Temecula, CA26 mi · high 93°F · 1 wet day
- Cooler: Oceanside, CA18 mi · high 71°F · 1 wet day
How Escondido ranks in September
- Normal high116th warmest of 378 cities; 27th of 60 in California
- Wet days45th driest of 378
- Comfortable days212th most of 342
What to pack for Escondido in September
- Light, breathable clothing – highs near 87°F and about 1 muggy days
Heating and cooling
September has 1 heating degree days and 301 cooling degree days (base 65°F), 11% of the year's total heating and cooling demand.
Questions
How hot is Escondido in September?
The normal high is 87°F and the normal low is 63°F. From 1991 to 2020 the hottest September reading was 115°F (September 6, 2020).
Does it rain a lot in Escondido in September?
About 1 days in September have at least 0.01 in of precipitation, and the normal total is 0.2 in. The wettest September in 1991-2020 was in 1997 (2.0 in); the driest was in 1992, with no measurable precipitation.
Is September a good time to visit Escondido?
September ranks 11th of 12 months on our comfort score for Escondido (51 out of 100). It has about 4 comfortable days and about 11 days at 90°F or hotter. The best month is May.
Where the numbers come from
- Temperature, rain and frost dates: Escondido #2 (USC00042863), 0.2 mi WNW of the city center, 600 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: San Pasqual Animal Pk (USC00047874), 5.4 mi ESE of the city center, 420 ft (228 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Camp Pendleton MCAS (USW00003154), 20 mi NW of the city center, 75 ft (573 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Cloud cover: March AFB (USW00023119), 55 mi N of the city center, 1,516 ft (868 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Marine Corps Air Station (722926-03154), 20 mi NW of the city center, 70 ft (578 ft lower than the city). Hourly observations, 1991-2020.