Castaños weather in October
In October, Castaños sees average daytime highs of 26°C and overnight lows near 15°C, with 39 mm of rain across 6.7 wet days and about 11.4 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.
Highs ease over the month, from about 27°C in the first days to 25°C by the end. The sky is clear or mostly clear about 58% of the time in October, and the air most often feels dry.
Daylight stretches from about 11 h 42 min at the start of October to 11 hours by month's end. Set against the rest of the year, October is Castaños's 1st-clearest and 9th-windiest month. For the whole year in context, see Castaños's year-round climate.
- Daytime high
- 26°
- 7th warmest
- Overnight low
- 15°
- 6th coldest
- Rainfall
- 39 mm
- 6.7 wet days
- Daylight
- 11 h 24 min
- 6:50 AM – 6:11 PM
- Cloud cover
- 37%
- 1st clearest
- Wind
- 6 km/h
- 9th windiest
- Solar energy
- 4.83 kWh/m²
- Travel score
- 7.6
- out of 10
Castaños is municipal seat of Castaños, State of Coahuila, Mexico.
- Founded
- 1674
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in October
Highs ease over the month, from about 27°C in the first days to 25°C by the end.
A typical October day in Castaños reaches about 26°C in the afternoon and slips back to 15°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 31°C. Set against its neighbours, October runs about 2°C cooler than September and about 4°C warmer than 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) | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 |
| Avg low (°C) | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 27 | 17 |
| 2 | 27 | 17 |
| 3 | 27 | 17 |
| 4 | 27 | 17 |
| 5 | 27 | 17 |
| 6 | 27 | 17 |
| 7 | 27 | 17 |
| 8 | 27 | 17 |
| 9 | 27 | 16 |
| 10 | 27 | 16 |
| 11 | 27 | 16 |
| 12 | 27 | 16 |
| 13 | 26 | 16 |
| 14 | 26 | 16 |
| 15 | 26 | 16 |
| 16 | 26 | 15 |
| 17 | 26 | 15 |
| 18 | 26 | 15 |
| 19 | 26 | 15 |
| 20 | 26 | 15 |
| 21 | 26 | 15 |
| 22 | 26 | 14 |
| 23 | 25 | 14 |
| 24 | 25 | 14 |
| 25 | 25 | 14 |
| 26 | 25 | 14 |
| 27 | 25 | 14 |
| 28 | 25 | 13 |
| 29 | 25 | 13 |
| 30 | 24 | 13 |
| 31 | 24 | 13 |
How October really feels in Castaños
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.
Castaños weather by month
How October compares with the rest of the year at a glance. October is the 7th-warmest and 6th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 19° / 7° | 17 | 3.6 | 10.5 | 7.2 |
| Feb | 22° / 9° | 12 | 3.1 | 11.1 | 8.0 |
| Mar | 25° / 13° | 24 | 4.3 | 11.8 | 8.0 |
| Apr | 29° / 16° | 27 | 5.8 | 12.6 | 6.2 |
| May | 32° / 20° | 49 | 11.6 | 13.3 | 4.3 |
| Jun | 33° / 22° | 56 | 10.2 | 13.7 | 3.8 |
| Jul | 32° / 22° | 81 | 10.2 | 13.5 | 4.0 |
| Aug | 32° / 22° | 64 | 9.2 | 12.9 | 4.3 |
| Sep | 28° / 19° | 121 | 13 | 12.2 | 5.6 |
| Oct | 26° / 15° | 39 | 6.7 | 11.4 | 7.6 |
| Nov | 22° / 11° | 21 | 3.9 | 10.7 | 8.0 |
| Dec | 19° / 7° | 19 | 3.4 | 10.3 | 7.4 |
Cloud cover in October
The sky is clear or mostly clear about 58% of the time in October, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 13% of October, with mostly cloudy or overcast conditions the remaining 29%.
| 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 (%) | 74 | 74 | 73 | 73 | 73 | 73 | 72 | 72 | 70 | 70 | 70 | 68 | 68 | 68 | 69 | 68 | 68 | 69 | 69 | 69 | 71 | 71 | 71 | 71 | 72 | 72 | 73 | 72 | 73 | 72 | 71 |
| Cloudier (%) | 26 | 26 | 27 | 27 | 27 | 27 | 28 | 28 | 30 | 30 | 30 | 32 | 32 | 32 | 31 | 32 | 32 | 31 | 31 | 31 | 29 | 29 | 29 | 29 | 28 | 28 | 27 | 28 | 27 | 28 | 29 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 74 | 26 |
| 2 | 74 | 26 |
| 3 | 73 | 27 |
| 4 | 73 | 27 |
| 5 | 73 | 27 |
| 6 | 73 | 27 |
| 7 | 72 | 28 |
| 8 | 72 | 28 |
| 9 | 70 | 30 |
| 10 | 70 | 30 |
| 11 | 70 | 30 |
| 12 | 68 | 32 |
| 13 | 68 | 32 |
| 14 | 68 | 32 |
| 15 | 69 | 31 |
| 16 | 68 | 32 |
| 17 | 68 | 32 |
| 18 | 69 | 31 |
| 19 | 69 | 31 |
| 20 | 69 | 31 |
| 21 | 71 | 29 |
| 22 | 71 | 29 |
| 23 | 71 | 29 |
| 24 | 71 | 29 |
| 25 | 72 | 28 |
| 26 | 72 | 28 |
| 27 | 73 | 27 |
| 28 | 72 | 28 |
| 29 | 73 | 27 |
| 30 | 72 | 28 |
| 31 | 71 | 29 |
Chance of precipitation in October
Castaños gets around 39 mm of rain over 6.7 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 22% and peaks near 28% 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 (%) | 28 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 24 | 24 | 23 | 23 | 22 | 21 | 21 | 20 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 16 |
| Rain chance (%) | |
|---|---|
| 1 | 28 |
| 2 | 27 |
| 3 | 27 |
| 4 | 27 |
| 5 | 26 |
| 6 | 26 |
| 7 | 26 |
| 8 | 26 |
| 9 | 26 |
| 10 | 26 |
| 11 | 25 |
| 12 | 25 |
| 13 | 24 |
| 14 | 24 |
| 15 | 23 |
| 16 | 23 |
| 17 | 22 |
| 18 | 21 |
| 19 | 21 |
| 20 | 20 |
| 21 | 19 |
| 22 | 19 |
| 23 | 18 |
| 24 | 18 |
| 25 | 18 |
| 26 | 17 |
| 27 | 17 |
| 28 | 17 |
| 29 | 17 |
| 30 | 17 |
| 31 | 16 |
Humidity in October
Most of October feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, October lands in the dry band about 37% of days. Sticky, muggy-or-worse air turns up on roughly 13% 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 (%) | 20 | 21 | 22 | 23 | 23 | 24 | 25 | 25 | 26 | 27 | 29 | 30 | 31 | 32 | 34 | 35 | 37 | 38 | 40 | 42 | 44 | 46 | 47 | 49 | 50 | 52 | 54 | 56 | 58 | 60 | 61 |
| Comfortable (%) | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 21 | 21 | 20 | 20 | 20 |
| Humid (%) | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 28 | 28 | 27 | 26 | 25 | 25 | 24 | 23 | 22 | 21 | 19 | 18 | 17 | 16 |
| Muggy (%) | 26 | 25 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 7 | 6 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 3 | 3 |
| Oppressive (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 20 | 23 | 29 | 26 | 1 |
| 2 | 21 | 23 | 29 | 25 | 1 |
| 3 | 22 | 24 | 29 | 25 | 1 |
| 4 | 23 | 24 | 29 | 24 | 1 |
| 5 | 23 | 24 | 29 | 23 | 1 |
| 6 | 24 | 24 | 29 | 22 | 1 |
| 7 | 25 | 24 | 29 | 21 | 1 |
| 8 | 25 | 24 | 30 | 20 | 1 |
| 9 | 26 | 24 | 30 | 19 | 1 |
| 10 | 27 | 24 | 30 | 18 | 1 |
| 11 | 29 | 24 | 30 | 16 | 1 |
| 12 | 30 | 25 | 30 | 15 | 1 |
| 13 | 31 | 25 | 30 | 14 | 0 |
| 14 | 32 | 25 | 30 | 13 | 0 |
| 15 | 34 | 25 | 30 | 12 | 0 |
| 16 | 35 | 24 | 29 | 11 | 0 |
| 17 | 37 | 24 | 29 | 10 | 0 |
| 18 | 38 | 24 | 28 | 9 | 0 |
| 19 | 40 | 24 | 28 | 8 | 0 |
| 20 | 42 | 23 | 27 | 7 | 0 |
| 21 | 44 | 23 | 26 | 7 | 0 |
| 22 | 46 | 23 | 25 | 6 | 0 |
| 23 | 47 | 23 | 25 | 5 | 0 |
| 24 | 49 | 22 | 24 | 5 | 0 |
| 25 | 50 | 22 | 23 | 5 | 0 |
| 26 | 52 | 22 | 22 | 4 | 0 |
| 27 | 54 | 21 | 21 | 4 | 0 |
| 28 | 56 | 21 | 19 | 4 | 0 |
| 29 | 58 | 20 | 18 | 4 | 0 |
| 30 | 60 | 20 | 17 | 3 | 0 |
| 31 | 61 | 20 | 16 | 3 | 0 |
Wind in October
Winds average 6 km/h in October.
Across October, daily wind ranges from about 6 km/h on the calmest days to 6 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) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| 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 | 6 | calm |
| 2 | 6 | calm |
| 3 | 6 | calm |
| 4 | 6 | calm |
| 5 | 6 | calm |
| 6 | 6 | calm |
| 7 | 6 | calm |
| 8 | 6 | calm |
| 9 | 6 | calm |
| 10 | 6 | calm |
| 11 | 6 | calm |
| 12 | 6 | calm |
| 13 | 6 | calm |
| 14 | 6 | calm |
| 15 | 6 | calm |
| 16 | 6 | 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 | 6 | calm |
| 27 | 6 | calm |
| 28 | 6 | calm |
| 29 | 6 | calm |
| 30 | 6 | calm |
| 31 | 6 | calm |
Sunrise & sunset in October
Daylight runs from about 11 h 42 min at the start of October to 11 hours by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 42 minutes over October. Sunrise moves from 6:42 AM to 7:00 AM, and sunset from 6:27 PM to 5:59 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) | 11.7 | 11.7 | 11.7 | 11.7 | 11.6 | 11.6 | 11.6 | 11.6 | 11.5 | 11.5 | 11.5 | 11.5 | 11.4 | 11.4 | 11.4 | 11.4 | 11.3 | 11.3 | 11.3 | 11.3 | 11.2 | 11.2 | 11.2 | 11.2 | 11.1 | 11.1 | 11.1 | 11.1 | 11.0 | 11.0 | 11.0 |
| Sunrise (AM) | 6:42 | 6:43 | 6:43 | 6:44 | 6:44 | 6:45 | 6:45 | 6:46 | 6:46 | 6:47 | 6:47 | 6:48 | 6:48 | 6:49 | 6:50 | 6:50 | 6:51 | 6:51 | 6:52 | 6:53 | 6:53 | 6:54 | 6:54 | 6:55 | 6:56 | 6:56 | 6:57 | 6:58 | 6:58 | 6:59 | 7:00 |
| Sunset (PM) | 6:27 | 6:26 | 6:25 | 6:24 | 6:23 | 6:22 | 6:21 | 6:19 | 6:18 | 6:17 | 6:16 | 6:15 | 6:14 | 6:13 | 6:12 | 6:11 | 6:10 | 6:09 | 6:09 | 6:08 | 6:07 | 6:06 | 6:05 | 6:04 | 6:03 | 6:03 | 6:02 | 6:01 | 6:00 | 6:00 | 5:59 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.7 | 6:42 | 6:27 |
| 2 | 11.7 | 6:43 | 6:26 |
| 3 | 11.7 | 6:43 | 6:25 |
| 4 | 11.7 | 6:44 | 6:24 |
| 5 | 11.6 | 6:44 | 6:23 |
| 6 | 11.6 | 6:45 | 6:22 |
| 7 | 11.6 | 6:45 | 6:21 |
| 8 | 11.6 | 6:46 | 6:19 |
| 9 | 11.5 | 6:46 | 6:18 |
| 10 | 11.5 | 6:47 | 6:17 |
| 11 | 11.5 | 6:47 | 6:16 |
| 12 | 11.5 | 6:48 | 6:15 |
| 13 | 11.4 | 6:48 | 6:14 |
| 14 | 11.4 | 6:49 | 6:13 |
| 15 | 11.4 | 6:50 | 6:12 |
| 16 | 11.4 | 6:50 | 6:11 |
| 17 | 11.3 | 6:51 | 6:10 |
| 18 | 11.3 | 6:51 | 6:09 |
| 19 | 11.3 | 6:52 | 6:09 |
| 20 | 11.3 | 6:53 | 6:08 |
| 21 | 11.2 | 6:53 | 6:07 |
| 22 | 11.2 | 6:54 | 6:06 |
| 23 | 11.2 | 6:54 | 6:05 |
| 24 | 11.2 | 6:55 | 6:04 |
| 25 | 11.1 | 6:56 | 6:03 |
| 26 | 11.1 | 6:56 | 6:03 |
| 27 | 11.1 | 6:57 | 6:02 |
| 28 | 11.1 | 6:58 | 6:01 |
| 29 | 11.0 | 6:58 | 6:00 |
| 30 | 11.0 | 6:59 | 6:00 |
| 31 | 11.0 | 7:00 | 5:59 |
Solar energy in October
Average shortwave solar energy reaching the ground each day in October, about 4.83 kWh/m².
For context, solar energy here swings from a low near 3.69 kWh/m² to a high of 7.06 kWh/m² in June across the year — October's 4.83 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.2 | 5.2 | 5.2 | 5.2 | 5.1 | 5.1 | 5.0 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.7 | 4.7 | 4.7 | 4.7 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.5 | 4.5 | 4.5 | 4.4 | 4.4 |
| 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 | 5.2 | Bright |
| 2 | 5.2 | Bright |
| 3 | 5.2 | Bright |
| 4 | 5.2 | Bright |
| 5 | 5.1 | Bright |
| 6 | 5.1 | Bright |
| 7 | 5.0 | Bright |
| 8 | 5.0 | Bright |
| 9 | 5.0 | Bright |
| 10 | 5.0 | Bright |
| 11 | 4.9 | Bright |
| 12 | 4.9 | Bright |
| 13 | 4.8 | Bright |
| 14 | 4.8 | Bright |
| 15 | 4.8 | Bright |
| 16 | 4.8 | Bright |
| 17 | 4.8 | Bright |
| 18 | 4.7 | Bright |
| 19 | 4.7 | Bright |
| 20 | 4.7 | Bright |
| 21 | 4.7 | Bright |
| 22 | 4.6 | Bright |
| 23 | 4.6 | Bright |
| 24 | 4.6 | Bright |
| 25 | 4.6 | Bright |
| 26 | 4.6 | Bright |
| 27 | 4.5 | Bright |
| 28 | 4.5 | Bright |
| 29 | 4.5 | Bright |
| 30 | 4.4 | Bright |
| 31 | 4.4 | Bright |
Hazard calendar for Castaños
None of Castaños's seasonal hazards are active in October. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Castaños's rainy season runs June–September, when most of the year's rain falls.
Is October a good time to visit Castaños?
Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
October is one of the better times to visit Castaños for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Castaños in October
From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In October, Castaños sees daytime highs around 26°C and nights near 15°C. Worth packing: light clothes and sun protection. About 7 days see rain.
UV index in Castaños in October
Clear-sky midday UV in October peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Castaños peaks around July 15 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 5 (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) | 6 | 7 | 9 | 11 | 12 | 12 | 12 | 11 | 11 | 8 | 6 | 5 |
| Level | High | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 6 | High |
| Feb | 7 | Very high |
| Mar | 9 | Very high |
| Apr | 11 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 11 | Extreme |
| Oct | 8 | Very high |
| Nov | 6 | High |
| Dec | 5 | Moderate |
Air quality in Castaños 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 Castaños is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (January, 9 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) | 9 | 9 | 9 | 11 | 15 | 15 | 18 | 15 | 14 | 11 | 10 | 9 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 9 | Good |
| Feb | 9 | Good |
| Mar | 9 | Good |
| Apr | 11 | Good |
| May | 15 | Moderate |
| Jun | 15 | Moderate |
| Jul | 18 | Moderate |
| Aug | 15 | Moderate |
| Sep | 14 | Moderate |
| Oct | 11 | Good |
| Nov | 10 | Good |
| Dec | 9 | Good |
Where is Castaños?
Castaños sits at 26.8°N, 101.4°W, 756 m above sea level, in Mexico. The nearest listed city is Monclova, 13 km away.
Topography around Castaños
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Castaños.
Within 3 km, the terrain around Castaños has only modest variations in elevation — a maximum elevation change of 240 m around an average of 777 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,344 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,316 m.
The land around Castaños is covered by shrubs (58%) and artificial surfaces (26%) within 3 km, shrubs (81%) within 16 km, and shrubs (88%) within 80 km.
Mexico travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B
- 120 / 127 V · 60 Hz
- Prices
- ≈ 54% of US
- price level, 2025
- GDP per capita
- $13,889
- 2025
- Happiness
- 7.0 / 10
- World Happiness, 2025
- Safe drinking water
- 43%
- of population, 2024
- Homicide rate
- 24.9
- per 100k, 2023
- Road deaths
- 12.8
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Very low
- EF EPI 440
- 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 Castaños (26.7893°, -101.4321°, elevation 756 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. 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).