Santa Ana weather in October
In October, Santa Ana sees average daytime highs of 29°C and overnight lows near 20°C, with 157 mm of rain across 18.6 wet days and about 11.7 hours of daylight. It is the 12th-warmest and 3rd-wettest month of the year here.
Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 15% of the time in October, and the air most often feels muggy.
Daylight stretches from about 11 h 54 min at the start of October to 11 h 30 min by month's end. Set against the rest of the year, October is Santa Ana's 7th-clearest and 8th-windiest month. For the whole year in context, see Santa Ana's year-round climate.
- Daytime high
- 29°
- 12th warmest
- Overnight low
- 20°
- 6th coldest
- Rainfall
- 157 mm
- 18.6 wet days
- Daylight
- 11 h 42 min
- 5:53 AM – 5:34 PM
- Cloud cover
- 72%
- 7th clearest
- Wind
- 6 km/h
- 8th windiest
- Solar energy
- 4.7 kWh/m²
- Travel score
- 4.2
- out of 10
Santa Ana is city in El Salvador.
- Density
- 442/km²
- people per km²
- Founded
- 1569
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in October
Day-to-day highs hold fairly steady near 29°C through the month.
A typical October day in Santa Ana reaches about 29°C in the afternoon and slips back to 20°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 32°C. Set against its neighbours, October runs on par with September and on par with November.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 |
| Avg low (°C) | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 29 | 21 |
| 2 | 29 | 21 |
| 3 | 29 | 21 |
| 4 | 29 | 21 |
| 5 | 29 | 21 |
| 6 | 29 | 21 |
| 7 | 29 | 21 |
| 8 | 29 | 21 |
| 9 | 29 | 21 |
| 10 | 29 | 21 |
| 11 | 29 | 21 |
| 12 | 29 | 21 |
| 13 | 29 | 20 |
| 14 | 29 | 20 |
| 15 | 29 | 20 |
| 16 | 29 | 20 |
| 17 | 29 | 20 |
| 18 | 29 | 20 |
| 19 | 29 | 20 |
| 20 | 29 | 20 |
| 21 | 29 | 20 |
| 22 | 29 | 20 |
| 23 | 29 | 20 |
| 24 | 29 | 20 |
| 25 | 29 | 20 |
| 26 | 29 | 20 |
| 27 | 29 | 20 |
| 28 | 30 | 20 |
| 29 | 30 | 20 |
| 30 | 30 | 20 |
| 31 | 30 | 20 |
How October really feels in Santa Ana
Once humidity and wind are folded in, October averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Santa Ana weather by month
How October compares with the rest of the year at a glance. October is the 12th-warmest and 3rd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 18° | 2 | 0.4 | 11.3 | 6.5 |
| Feb | 31° / 19° | 1 | 0.3 | 11.5 | 5.7 |
| Mar | 32° / 20° | 6 | 1.6 | 11.9 | 4.9 |
| Apr | 33° / 21° | 31 | 7.2 | 12.3 | 3.9 |
| May | 31° / 21° | 139 | 20.5 | 12.6 | 3.2 |
| Jun | 30° / 21° | 186 | 24.1 | 12.8 | 3.2 |
| Jul | 31° / 21° | 97 | 15.8 | 12.7 | 3.7 |
| Aug | 31° / 21° | 122 | 20.2 | 12.5 | 3.3 |
| Sep | 30° / 21° | 213 | 25.7 | 12.1 | 3.1 |
| Oct | 29° / 20° | 157 | 18.6 | 11.7 | 4.2 |
| Nov | 30° / 19° | 27 | 4.3 | 11.4 | 5.9 |
| Dec | 30° / 19° | 6 | 1.1 | 11.2 | 6.5 |
Cloud cover in October
The sky is clear or mostly clear about 15% of the time in October.
Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 70%. Skies tend to open up 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 17 | 18 | 18 | 19 | 19 | 21 | 21 | 21 | 23 | 23 | 24 | 24 | 24 | 26 | 26 | 28 | 28 | 29 | 32 | 33 | 34 | 36 | 38 | 39 | 41 | 43 | 45 | 45 | 47 | 48 | 50 |
| Cloudier (%) | 83 | 82 | 82 | 81 | 81 | 79 | 79 | 79 | 77 | 77 | 76 | 76 | 76 | 74 | 74 | 72 | 72 | 71 | 68 | 67 | 66 | 64 | 62 | 61 | 59 | 57 | 55 | 55 | 53 | 52 | 50 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 17 | 83 |
| 2 | 18 | 82 |
| 3 | 18 | 82 |
| 4 | 19 | 81 |
| 5 | 19 | 81 |
| 6 | 21 | 79 |
| 7 | 21 | 79 |
| 8 | 21 | 79 |
| 9 | 23 | 77 |
| 10 | 23 | 77 |
| 11 | 24 | 76 |
| 12 | 24 | 76 |
| 13 | 24 | 76 |
| 14 | 26 | 74 |
| 15 | 26 | 74 |
| 16 | 28 | 72 |
| 17 | 28 | 72 |
| 18 | 29 | 71 |
| 19 | 32 | 68 |
| 20 | 33 | 67 |
| 21 | 34 | 66 |
| 22 | 36 | 64 |
| 23 | 38 | 62 |
| 24 | 39 | 61 |
| 25 | 41 | 59 |
| 26 | 43 | 57 |
| 27 | 45 | 55 |
| 28 | 45 | 55 |
| 29 | 47 | 53 |
| 30 | 48 | 52 |
| 31 | 50 | 50 |
Chance of precipitation in October
Santa Ana gets around 157 mm of rain over 18.6 wet days in October. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 60% and peaks near 83% on the wettest days. The odds ease toward the end of the month.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 83 | 81 | 80 | 79 | 77 | 76 | 75 | 74 | 72 | 71 | 70 | 69 | 67 | 65 | 64 | 62 | 60 | 58 | 57 | 55 | 53 | 51 | 49 | 47 | 45 | 43 | 41 | 39 | 38 | 36 | 34 |
| Rain chance (%) | |
|---|---|
| 1 | 83 |
| 2 | 81 |
| 3 | 80 |
| 4 | 79 |
| 5 | 77 |
| 6 | 76 |
| 7 | 75 |
| 8 | 74 |
| 9 | 72 |
| 10 | 71 |
| 11 | 70 |
| 12 | 69 |
| 13 | 67 |
| 14 | 65 |
| 15 | 64 |
| 16 | 62 |
| 17 | 60 |
| 18 | 58 |
| 19 | 57 |
| 20 | 55 |
| 21 | 53 |
| 22 | 51 |
| 23 | 49 |
| 24 | 47 |
| 25 | 45 |
| 26 | 43 |
| 27 | 41 |
| 28 | 39 |
| 29 | 38 |
| 30 | 36 |
| 31 | 34 |
Humidity in October
Most of October feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, October lands in the muggy band about 72% of days. Sticky, muggy-or-worse air turns up on roughly 80% of them.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 4 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 9 |
| Humid (%) | 3 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 8 | 9 | 10 | 11 | 13 | 14 | 15 | 16 | 18 | 19 | 20 | 22 | 23 | 24 | 26 | 27 | 28 | 29 | 30 | 31 | 33 | 34 | 35 |
| Muggy (%) | 84 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 82 | 81 | 80 | 80 | 78 | 76 | 75 | 75 | 72 | 71 | 70 | 68 | 66 | 65 | 63 | 62 | 61 | 59 | 59 | 57 | 56 | 54 | 52 |
| Oppressive (%) | 13 | 13 | 13 | 12 | 12 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 3 | 3 | 3 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 0 | 0 | 3 | 84 | 13 |
| 2 | 0 | 0 | 4 | 83 | 13 |
| 3 | 0 | 0 | 4 | 83 | 13 |
| 4 | 0 | 0 | 5 | 83 | 12 |
| 5 | 0 | 0 | 5 | 83 | 12 |
| 6 | 0 | 0 | 6 | 83 | 11 |
| 7 | 0 | 0 | 6 | 83 | 11 |
| 8 | 0 | 0 | 7 | 83 | 10 |
| 9 | 0 | 0 | 8 | 82 | 10 |
| 10 | 0 | 0 | 9 | 81 | 10 |
| 11 | 0 | 0 | 10 | 80 | 10 |
| 12 | 0 | 0 | 11 | 80 | 9 |
| 13 | 0 | 0 | 13 | 78 | 9 |
| 14 | 0 | 1 | 14 | 76 | 9 |
| 15 | 0 | 1 | 15 | 75 | 9 |
| 16 | 0 | 1 | 16 | 75 | 8 |
| 17 | 0 | 2 | 18 | 72 | 8 |
| 18 | 0 | 2 | 19 | 71 | 8 |
| 19 | 0 | 3 | 20 | 70 | 7 |
| 20 | 0 | 3 | 22 | 68 | 7 |
| 21 | 0 | 4 | 23 | 66 | 7 |
| 22 | 0 | 5 | 24 | 65 | 6 |
| 23 | 0 | 5 | 26 | 63 | 6 |
| 24 | 0 | 6 | 27 | 62 | 5 |
| 25 | 0 | 6 | 28 | 61 | 5 |
| 26 | 0 | 7 | 29 | 59 | 5 |
| 27 | 0 | 7 | 30 | 59 | 4 |
| 28 | 0 | 8 | 31 | 57 | 4 |
| 29 | 0 | 8 | 33 | 56 | 3 |
| 30 | 0 | 9 | 34 | 54 | 3 |
| 31 | 1 | 9 | 35 | 52 | 3 |
Wind in October
Winds average 6 km/h in October.
Across October, daily wind ranges from about 5 km/h on the calmest days to 7 km/h 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 |
| 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 | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 5 | calm |
| 2 | 5 | calm |
| 3 | 5 | calm |
| 4 | 5 | calm |
| 5 | 5 | calm |
| 6 | 5 | calm |
| 7 | 5 | calm |
| 8 | 5 | calm |
| 9 | 5 | calm |
| 10 | 5 | calm |
| 11 | 5 | calm |
| 12 | 5 | calm |
| 13 | 5 | calm |
| 14 | 5 | calm |
| 15 | 5 | calm |
| 16 | 5 | calm |
| 17 | 6 | calm |
| 18 | 6 | calm |
| 19 | 6 | calm |
| 20 | 6 | calm |
| 21 | 6 | calm |
| 22 | 6 | calm |
| 23 | 6 | calm |
| 24 | 6 | calm |
| 25 | 6 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 7 | calm |
| 29 | 7 | calm |
| 30 | 7 | calm |
| 31 | 7 | calm |
Sunrise & sunset in October
Daylight runs from about 11 h 54 min at the start of October to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 24 minutes over October. Sunrise moves from 5:51 AM to 5:57 AM, and sunset from 5:44 PM to 5:27 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.9 | 11.9 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 |
| Sunrise (AM) | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:53 | 5:53 | 5:53 | 5:53 | 5:53 | 5:54 | 5:54 | 5:54 | 5:54 | 5:55 | 5:55 | 5:55 | 5:55 | 5:56 | 5:56 | 5:56 | 5:57 |
| Sunset (PM) | 5:44 | 5:43 | 5:42 | 5:41 | 5:41 | 5:40 | 5:39 | 5:39 | 5:38 | 5:37 | 5:37 | 5:36 | 5:35 | 5:35 | 5:34 | 5:34 | 5:33 | 5:33 | 5:32 | 5:32 | 5:31 | 5:31 | 5:30 | 5:30 | 5:29 | 5:29 | 5:28 | 5:28 | 5:28 | 5:27 | 5:27 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.9 | 5:51 | 5:44 |
| 2 | 11.9 | 5:51 | 5:43 |
| 3 | 11.8 | 5:51 | 5:42 |
| 4 | 11.8 | 5:51 | 5:41 |
| 5 | 11.8 | 5:51 | 5:41 |
| 6 | 11.8 | 5:51 | 5:40 |
| 7 | 11.8 | 5:51 | 5:39 |
| 8 | 11.8 | 5:52 | 5:39 |
| 9 | 11.8 | 5:52 | 5:38 |
| 10 | 11.8 | 5:52 | 5:37 |
| 11 | 11.7 | 5:52 | 5:37 |
| 12 | 11.7 | 5:52 | 5:36 |
| 13 | 11.7 | 5:52 | 5:35 |
| 14 | 11.7 | 5:52 | 5:35 |
| 15 | 11.7 | 5:53 | 5:34 |
| 16 | 11.7 | 5:53 | 5:34 |
| 17 | 11.7 | 5:53 | 5:33 |
| 18 | 11.7 | 5:53 | 5:33 |
| 19 | 11.6 | 5:53 | 5:32 |
| 20 | 11.6 | 5:54 | 5:32 |
| 21 | 11.6 | 5:54 | 5:31 |
| 22 | 11.6 | 5:54 | 5:31 |
| 23 | 11.6 | 5:54 | 5:30 |
| 24 | 11.6 | 5:55 | 5:30 |
| 25 | 11.6 | 5:55 | 5:29 |
| 26 | 11.6 | 5:55 | 5:29 |
| 27 | 11.5 | 5:55 | 5:28 |
| 28 | 11.5 | 5:56 | 5:28 |
| 29 | 11.5 | 5:56 | 5:28 |
| 30 | 11.5 | 5:56 | 5:27 |
| 31 | 11.5 | 5:57 | 5:27 |
Solar energy in October
Average shortwave solar energy reaching the ground each day in October, about 4.7 kWh/m² — the year's lowest.
For context, solar energy here swings from a low near 4.7 kWh/m² to a high of 6.27 kWh/m² in March across the year — October's 4.7 kWh/m² sits near the bottom.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.7 | 4.7 | 4.7 | 4.7 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.6 | Bright |
| 2 | 4.6 | Bright |
| 3 | 4.6 | Bright |
| 4 | 4.6 | Bright |
| 5 | 4.6 | Bright |
| 6 | 4.6 | Bright |
| 7 | 4.6 | Bright |
| 8 | 4.6 | Bright |
| 9 | 4.6 | Bright |
| 10 | 4.6 | Bright |
| 11 | 4.6 | Bright |
| 12 | 4.6 | Bright |
| 13 | 4.6 | Bright |
| 14 | 4.6 | Bright |
| 15 | 4.6 | Bright |
| 16 | 4.6 | Bright |
| 17 | 4.6 | Bright |
| 18 | 4.7 | Bright |
| 19 | 4.7 | Bright |
| 20 | 4.7 | Bright |
| 21 | 4.7 | Bright |
| 22 | 4.8 | Bright |
| 23 | 4.8 | Bright |
| 24 | 4.8 | Bright |
| 25 | 4.8 | Bright |
| 26 | 4.8 | Bright |
| 27 | 4.9 | Bright |
| 28 | 4.9 | Bright |
| 29 | 4.9 | Bright |
| 30 | 4.9 | Bright |
| 31 | 4.9 | Bright |
Hazard calendar for Santa Ana
In October, Santa Ana sits inside its atlantic hurricane and monsoon season. The full year is below, with each hazard's peak months called out.
Santa Ana sits in the Atlantic hurricane belt; the season peaks August–October.
Santa Ana's monsoon runs May–October, when most of the year's rain falls.
Is October a good time to visit Santa Ana?
Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
October is a reasonable time to visit Santa Ana for sightseeing.
What to pack for Santa Ana in October
From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In October, Santa Ana sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.
Sea temperature near Santa Ana in October
The nearest coast averages about 29°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 53 km away) is warmest in August at about 30°C and coldest in January near 28°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 28 | 28 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Tropical |
| Feb | 28 | Tropical |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 30 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 29 | Tropical |
UV index in Santa Ana in October
Clear-sky midday UV in October peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Santa Ana peaks around April 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 9 (very high).
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) | 10 | 13 | 13 | 14 | 12 | 13 | 13 | 12 | 12 | 11 | 9 | 9 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 13 | Extreme |
| Mar | 13 | Extreme |
| Apr | 14 | Extreme |
| May | 12 | Extreme |
| Jun | 13 | Extreme |
| Jul | 13 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 9 | Very high |
Air quality in Santa Ana in October
Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.
Air quality in Santa Ana is worst in April — around 33 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 16 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) | 16 | 18 | 21 | 33 | 31 | 21 | 23 | 20 | 19 | 18 | 16 | 16 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 16 | Moderate |
| Feb | 18 | Moderate |
| Mar | 21 | Moderate |
| Apr | 33 | Moderate |
| May | 31 | Moderate |
| Jun | 21 | Moderate |
| Jul | 23 | Moderate |
| Aug | 20 | Moderate |
| Sep | 19 | Moderate |
| Oct | 18 | Moderate |
| Nov | 16 | Moderate |
| Dec | 16 | Moderate |
Where is Santa Ana?
Santa Ana sits at 14.0°N, 89.6°W, 645 m above sea level, in El Salvador. The nearest listed city is Chalchuapa, 13 km away.
Topography around Santa Ana
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santa Ana.
Within 3 km, the terrain around Santa Ana has significant variations in elevation — a maximum elevation change of 387 m around an average of 683 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,989 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,703 m.
The land around Santa Ana is covered by trees (55%) and artificial surfaces (37%) within 3 km, trees (64%) and grassland (20%) within 16 km, and trees (52%) and grassland (23%) within 80 km.
El Salvador travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B
- 115 V · 60 Hz
- Prices
- ≈ 41% of US
- price level, 2025
- GDP per capita
- $5,767
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Homicide rate
- 7.9
- per 100k, 2022
- Road deaths
- 20.9
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Moderate
- EF EPI 523
- 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 Santa Ana (13.9883°, -89.5568°, elevation 645 m), 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).