Ramona weather in September
In September, Ramona sees average daytime highs of 84°F and overnight lows near 62°F, with 0.3 in of rain across 1.6 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 9th-wettest month of the year here.
Highs ease over the month, from about 87°F in the first days to 82°F by the end. The sky is clear or mostly clear about 89% of the time in September, and the air most often feels dry.
Daylight stretches from about 12 h 42 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Ramona's 1st-clearest and 12th-windiest month. For the whole year in context, see Ramona's year-round climate.
- Daytime high
- 84°
- 3rd warmest
- Overnight low
- 62°
- 10th coldest
- Rainfall
- 0.3 in
- 1.6 wet days
- Daylight
- 12 h 12 min
- 5:36 AM – 5:48 PM
- Cloud cover
- 14%
- 1st clearest
- Wind
- 3 mph
- 12th windiest
- Solar energy
- 6.35 kWh/m²
- Travel score
- 7.2
- out of 10
Ramona is census-designated place in San Diego County, California, United States.
- Density
- 204/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Highs ease over the month, from about 87°F in the first days to 82°F by the end.
A typical September day in Ramona reaches about 84°F in the afternoon and slips back to 62°F overnight — a 23°F spread between the day's warmth and the night's chill. On most days the high lands between 75°F and 93°F. Set against its neighbours, September runs about 3°F cooler than August and about 7°F warmer than October.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 87 | 87 | 87 | 87 | 87 | 86 | 86 | 86 | 86 | 85 | 85 | 85 | 85 | 85 | 84 | 84 | 84 | 84 | 84 | 84 | 83 | 83 | 83 | 83 | 83 | 83 | 82 | 82 | 82 | 82 |
| Avg low (°F) | 65 | 65 | 65 | 64 | 64 | 64 | 64 | 64 | 63 | 63 | 63 | 62 | 62 | 62 | 62 | 62 | 61 | 61 | 61 | 61 | 61 | 60 | 60 | 60 | 60 | 60 | 60 | 59 | 59 | 59 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 87 | 65 |
| 2 | 87 | 65 |
| 3 | 87 | 65 |
| 4 | 87 | 64 |
| 5 | 87 | 64 |
| 6 | 86 | 64 |
| 7 | 86 | 64 |
| 8 | 86 | 64 |
| 9 | 86 | 63 |
| 10 | 85 | 63 |
| 11 | 85 | 63 |
| 12 | 85 | 62 |
| 13 | 85 | 62 |
| 14 | 85 | 62 |
| 15 | 84 | 62 |
| 16 | 84 | 62 |
| 17 | 84 | 61 |
| 18 | 84 | 61 |
| 19 | 84 | 61 |
| 20 | 84 | 61 |
| 21 | 83 | 61 |
| 22 | 83 | 60 |
| 23 | 83 | 60 |
| 24 | 83 | 60 |
| 25 | 83 | 60 |
| 26 | 83 | 60 |
| 27 | 82 | 60 |
| 28 | 82 | 59 |
| 29 | 82 | 59 |
| 30 | 82 | 59 |
Ramona weather by month
How September compares with the rest of the year at a glance. September is the 3rd-warmest and 9th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 62° / 42° | 2.9 | 6.2 | 10.1 | 6.1 |
| Feb | 62° / 43° | 3.5 | 7.8 | 10.8 | 5.8 |
| Mar | 65° / 45° | 2.4 | 6.6 | 11.7 | 6.6 |
| Apr | 69° / 48° | 1.2 | 4.9 | 12.8 | 7.5 |
| May | 73° / 52° | 0.6 | 2.7 | 13.7 | 8.6 |
| Jun | 80° / 58° | 0.1 | 0.6 | 14.1 | 8.6 |
| Jul | 86° / 64° | 0.3 | 1.6 | 14 | 6.6 |
| Aug | 87° / 65° | 0.3 | 1.6 | 13.2 | 6.2 |
| Sep | 84° / 62° | 0.3 | 1.6 | 12.2 | 7.2 |
| Oct | 77° / 55° | 0.7 | 2.7 | 11.2 | 8.7 |
| Nov | 69° / 47° | 1.3 | 4 | 10.3 | 7.7 |
| Dec | 62° / 42° | 2.3 | 5.7 | 9.9 | 6.0 |
Cloud cover in September
The sky is clear or mostly clear about 89% of the time in September, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 5% of September, with mostly cloudy or overcast conditions the remaining 7%. Skies tend to cloud over as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 95 | 95 | 95 | 95 | 95 | 95 | 95 | 95 | 96 | 96 | 96 | 95 | 95 | 95 | 94 | 94 | 94 | 93 | 93 | 93 | 93 | 92 | 91 | 91 | 91 | 91 | 91 | 90 | 90 | 90 |
| Cloudier (%) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 8 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 95 | 5 |
| 2 | 95 | 5 |
| 3 | 95 | 5 |
| 4 | 95 | 5 |
| 5 | 95 | 5 |
| 6 | 95 | 5 |
| 7 | 95 | 5 |
| 8 | 95 | 5 |
| 9 | 96 | 4 |
| 10 | 96 | 4 |
| 11 | 96 | 4 |
| 12 | 95 | 5 |
| 13 | 95 | 5 |
| 14 | 95 | 5 |
| 15 | 94 | 6 |
| 16 | 94 | 6 |
| 17 | 94 | 6 |
| 18 | 93 | 7 |
| 19 | 93 | 7 |
| 20 | 93 | 7 |
| 21 | 93 | 7 |
| 22 | 92 | 8 |
| 23 | 91 | 9 |
| 24 | 91 | 9 |
| 25 | 91 | 9 |
| 26 | 91 | 9 |
| 27 | 91 | 9 |
| 28 | 90 | 10 |
| 29 | 90 | 10 |
| 30 | 90 | 10 |
Chance of precipitation in September
Ramona gets around 0.3 in of rain over 1.6 wet days in September. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 5% and peaks near 6% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 |
| Rain chance (%) | |
|---|---|
| 1 | 6 |
| 2 | 6 |
| 3 | 6 |
| 4 | 6 |
| 5 | 5 |
| 6 | 5 |
| 7 | 5 |
| 8 | 5 |
| 9 | 5 |
| 10 | 5 |
| 11 | 5 |
| 12 | 5 |
| 13 | 5 |
| 14 | 5 |
| 15 | 5 |
| 16 | 5 |
| 17 | 5 |
| 18 | 5 |
| 19 | 5 |
| 20 | 5 |
| 21 | 5 |
| 22 | 5 |
| 23 | 5 |
| 24 | 5 |
| 25 | 5 |
| 26 | 5 |
| 27 | 6 |
| 28 | 6 |
| 29 | 6 |
| 30 | 6 |
Humidity in September
Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the dry band about 63% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 44 | 45 | 46 | 47 | 48 | 49 | 51 | 52 | 53 | 55 | 56 | 59 | 59 | 62 | 63 | 65 | 68 | 68 | 69 | 70 | 72 | 72 | 73 | 74 | 75 | 76 | 77 | 77 | 78 | 80 |
| Comfortable (%) | 32 | 31 | 30 | 30 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 25 | 24 | 24 | 24 | 23 | 22 | 22 | 21 | 20 | 19 | 18 | 17 | 17 | 16 | 15 |
| Humid (%) | 17 | 17 | 17 | 17 | 16 | 16 | 15 | 15 | 14 | 13 | 12 | 11 | 11 | 10 | 9 | 8 | 7 | 7 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 |
| Muggy (%) | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 44 | 32 | 17 | 7 |
| 2 | 45 | 31 | 17 | 7 |
| 3 | 46 | 30 | 17 | 7 |
| 4 | 47 | 30 | 17 | 6 |
| 5 | 48 | 29 | 16 | 6 |
| 6 | 49 | 29 | 16 | 6 |
| 7 | 51 | 28 | 15 | 6 |
| 8 | 52 | 28 | 15 | 5 |
| 9 | 53 | 28 | 14 | 5 |
| 10 | 55 | 28 | 13 | 4 |
| 11 | 56 | 28 | 12 | 4 |
| 12 | 59 | 27 | 11 | 3 |
| 13 | 59 | 27 | 11 | 3 |
| 14 | 62 | 26 | 10 | 2 |
| 15 | 63 | 26 | 9 | 2 |
| 16 | 65 | 25 | 8 | 2 |
| 17 | 68 | 24 | 7 | 1 |
| 18 | 68 | 24 | 7 | 1 |
| 19 | 69 | 24 | 6 | 1 |
| 20 | 70 | 23 | 6 | 1 |
| 21 | 72 | 22 | 5 | 1 |
| 22 | 72 | 22 | 5 | 1 |
| 23 | 73 | 21 | 5 | 1 |
| 24 | 74 | 20 | 5 | 1 |
| 25 | 75 | 19 | 5 | 1 |
| 26 | 76 | 18 | 5 | 1 |
| 27 | 77 | 17 | 5 | 1 |
| 28 | 77 | 17 | 5 | 1 |
| 29 | 78 | 16 | 5 | 1 |
| 30 | 80 | 15 | 4 | 1 |
Wind in September
Winds average 3 mph in September, the calmest month.
Across September, daily wind ranges from about 3 mph on the calmest days to 3 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 3 | calm |
| 2 | 3 | calm |
| 3 | 3 | calm |
| 4 | 3 | calm |
| 5 | 3 | calm |
| 6 | 3 | calm |
| 7 | 3 | calm |
| 8 | 3 | calm |
| 9 | 3 | calm |
| 10 | 3 | calm |
| 11 | 3 | calm |
| 12 | 3 | calm |
| 13 | 3 | calm |
| 14 | 3 | calm |
| 15 | 3 | calm |
| 16 | 3 | calm |
| 17 | 3 | calm |
| 18 | 3 | calm |
| 19 | 3 | calm |
| 20 | 3 | calm |
| 21 | 3 | calm |
| 22 | 3 | calm |
| 23 | 3 | calm |
| 24 | 3 | calm |
| 25 | 3 | calm |
| 26 | 3 | calm |
| 27 | 3 | calm |
| 28 | 3 | calm |
| 29 | 3 | calm |
| 30 | 3 | calm |
Sunrise & sunset in September
Daylight runs from about 12 h 42 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 60 minutes over September. Sunrise moves from 5:26 AM to 5:45 AM, and sunset from 6:09 PM to 5:28 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.7 | 12.7 | 12.6 | 12.6 | 12.6 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 11.9 | 11.9 | 11.9 | 11.8 | 11.8 | 11.7 | 11.7 |
| Sunrise (AM) | 5:26 | 5:26 | 5:27 | 5:28 | 5:28 | 5:29 | 5:30 | 5:30 | 5:31 | 5:32 | 5:32 | 5:33 | 5:34 | 5:34 | 5:35 | 5:36 | 5:36 | 5:37 | 5:38 | 5:38 | 5:39 | 5:40 | 5:41 | 5:41 | 5:42 | 5:43 | 5:43 | 5:44 | 5:45 | 5:45 |
| Sunset (PM) | 6:09 | 6:07 | 6:06 | 6:05 | 6:03 | 6:02 | 6:00 | 5:59 | 5:58 | 5:56 | 5:55 | 5:53 | 5:52 | 5:51 | 5:49 | 5:48 | 5:46 | 5:45 | 5:44 | 5:42 | 5:41 | 5:39 | 5:38 | 5:36 | 5:35 | 5:34 | 5:32 | 5:31 | 5:30 | 5:28 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.7 | 5:26 | 6:09 |
| 2 | 12.7 | 5:26 | 6:07 |
| 3 | 12.6 | 5:27 | 6:06 |
| 4 | 12.6 | 5:28 | 6:05 |
| 5 | 12.6 | 5:28 | 6:03 |
| 6 | 12.5 | 5:29 | 6:02 |
| 7 | 12.5 | 5:30 | 6:00 |
| 8 | 12.5 | 5:30 | 5:59 |
| 9 | 12.4 | 5:31 | 5:58 |
| 10 | 12.4 | 5:32 | 5:56 |
| 11 | 12.4 | 5:32 | 5:55 |
| 12 | 12.3 | 5:33 | 5:53 |
| 13 | 12.3 | 5:34 | 5:52 |
| 14 | 12.3 | 5:34 | 5:51 |
| 15 | 12.2 | 5:35 | 5:49 |
| 16 | 12.2 | 5:36 | 5:48 |
| 17 | 12.2 | 5:36 | 5:46 |
| 18 | 12.1 | 5:37 | 5:45 |
| 19 | 12.1 | 5:38 | 5:44 |
| 20 | 12.1 | 5:38 | 5:42 |
| 21 | 12.0 | 5:39 | 5:41 |
| 22 | 12.0 | 5:40 | 5:39 |
| 23 | 12.0 | 5:41 | 5:38 |
| 24 | 11.9 | 5:41 | 5:36 |
| 25 | 11.9 | 5:42 | 5:35 |
| 26 | 11.9 | 5:43 | 5:34 |
| 27 | 11.8 | 5:43 | 5:32 |
| 28 | 11.8 | 5:44 | 5:31 |
| 29 | 11.7 | 5:45 | 5:30 |
| 30 | 11.7 | 5:45 | 5:28 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 6.35 kWh/m².
For context, solar energy here swings from a low near 3.16 kWh/m² to a high of 8.36 kWh/m² in June across the year — September's 6.35 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.8 | 6.8 | 6.8 | 6.8 | 6.7 | 6.7 | 6.7 | 6.6 | 6.6 | 6.6 | 6.5 | 6.5 | 6.5 | 6.4 | 6.4 | 6.4 | 6.3 | 6.3 | 6.3 | 6.2 | 6.2 | 6.1 | 6.1 | 6.0 | 6.0 | 5.9 | 5.9 | 5.8 | 5.8 | 5.8 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.8 | Intense |
| 2 | 6.8 | Intense |
| 3 | 6.8 | Intense |
| 4 | 6.8 | Intense |
| 5 | 6.7 | Intense |
| 6 | 6.7 | Intense |
| 7 | 6.7 | Intense |
| 8 | 6.6 | Intense |
| 9 | 6.6 | Intense |
| 10 | 6.6 | Intense |
| 11 | 6.5 | Intense |
| 12 | 6.5 | Intense |
| 13 | 6.5 | Intense |
| 14 | 6.4 | Intense |
| 15 | 6.4 | Intense |
| 16 | 6.4 | Intense |
| 17 | 6.3 | Intense |
| 18 | 6.3 | Intense |
| 19 | 6.3 | Intense |
| 20 | 6.2 | Intense |
| 21 | 6.2 | Intense |
| 22 | 6.1 | Intense |
| 23 | 6.1 | Intense |
| 24 | 6.0 | Intense |
| 25 | 6.0 | Bright |
| 26 | 5.9 | Bright |
| 27 | 5.9 | Bright |
| 28 | 5.8 | Bright |
| 29 | 5.8 | Bright |
| 30 | 5.8 | Bright |
Is September a good time to visit Ramona?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is one of the better times to visit Ramona for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Ramona in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Ramona sees daytime highs around 84°F and nights near 62°F. Pack light clothes and sun protection.
Sea temperature near Ramona in September
The nearest coast averages about 70°F in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 30 mi away) is warmest in August at about 71°F and coldest in January near 59°F.
It's comfortable for a long swim from Jul 5 to Oct 7 — about 3.1 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 59 | 59 | 60 | 61 | 64 | 66 | 69 | 71 | 70 | 67 | 64 | 61 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Refreshing | Cool | Cool | Cool |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 59 | Cool |
| Feb | 59 | Cool |
| Mar | 60 | Cool |
| Apr | 61 | Cool |
| May | 64 | Cool |
| Jun | 66 | Cool |
| Jul | 69 | Refreshing |
| Aug | 71 | Refreshing |
| Sep | 70 | Refreshing |
| Oct | 67 | Cool |
| Nov | 64 | Cool |
| Dec | 61 | Cool |
UV index in Ramona in September
Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Ramona peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 5 | 5 | 8 | 9 | 11 | 11 | 11 | 9 | 6 | 4 | 3 |
| Level | Moderate | Moderate | Moderate | Very high | Very high | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 5 | Moderate |
| Mar | 5 | Moderate |
| Apr | 8 | Very high |
| May | 9 | Very high |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 9 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Ramona in September
Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.
Air quality in Ramona is worst in September — around 26 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (May, 8 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 12 | 12 | 12 | 11 | 8 | 11 | 11 | 15 | 26 | 14 | 12 | 16 |
| Level | Good | Moderate | Moderate | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Good |
| Feb | 12 | Moderate |
| Mar | 12 | Moderate |
| Apr | 11 | Good |
| May | 8 | Good |
| Jun | 11 | Good |
| Jul | 11 | Good |
| Aug | 15 | Moderate |
| Sep | 26 | Moderate |
| Oct | 14 | Moderate |
| Nov | 12 | Moderate |
| Dec | 16 | Moderate |
Where is Ramona?
Ramona sits at 33.0°N, 116.9°W, 1,427 ft above sea level, in United States. The nearest listed city is Poway, 11 mi away.
Topography around Ramona
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Ramona.
Within 2 miles, the terrain around Ramona has only modest variations in elevation — a maximum elevation change of 518 ft around an average of 1,490 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,698 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 8,619 ft.
The land around Ramona is covered by grassland (44%) and artificial surfaces (23%) within 2 miles, shrubs (48%), trees (26%) and grassland (21%) within 10 miles, and shrubs (31%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Ramona (33.0417°, -116.8681°, elevation 1,427 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).