San Carlos weather in October
In October, San Carlos sees average daytime highs of 32°C and overnight lows near 23°C, with 18 mm of rain across 2.3 wet days and about 11.3 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.
Highs ease over the month, from about 33°C in the first days to 30°C by the end. The sky is clear or mostly clear about 83% of the time in October, and the air most often feels muggy.
Daylight stretches from about 11 h 42 min at the start of October to 10 h 54 min by month's end. Set against the rest of the year, October is San Carlos's 3rd-clearest and 12th-windiest month. For the whole year in context, see San Carlos's year-round climate.
- Daytime high
- 32°
- 5th warmest
- Overnight low
- 23°
- 8th coldest
- Rainfall
- 18 mm
- 2.3 wet days
- Daylight
- 11 h 18 min
- 6:30 AM – 5:49 PM
- Cloud cover
- 18%
- 3rd clearest
- Wind
- 11 km/h
- 12th windiest
- Solar energy
- 5.37 kWh/m²
- Travel score
- 5.5
- out of 10
San Carlos is town in Guaymas Municipality, State of Sonora, Mexico.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in October
Highs ease over the month, from about 33°C in the first days to 30°C by the end.
A typical October day in San Carlos reaches about 32°C in the afternoon and slips back to 23°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 35°C. Set against its neighbours, October runs about 2°C cooler than September and about 5°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) | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Avg low (°C) | 26 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 33 | 26 |
| 2 | 33 | 25 |
| 3 | 33 | 25 |
| 4 | 33 | 25 |
| 5 | 33 | 25 |
| 6 | 33 | 25 |
| 7 | 33 | 24 |
| 8 | 33 | 24 |
| 9 | 33 | 24 |
| 10 | 32 | 24 |
| 11 | 32 | 24 |
| 12 | 32 | 23 |
| 13 | 32 | 23 |
| 14 | 32 | 23 |
| 15 | 32 | 23 |
| 16 | 32 | 23 |
| 17 | 32 | 22 |
| 18 | 31 | 22 |
| 19 | 31 | 22 |
| 20 | 31 | 22 |
| 21 | 31 | 22 |
| 22 | 31 | 21 |
| 23 | 31 | 21 |
| 24 | 31 | 21 |
| 25 | 30 | 21 |
| 26 | 30 | 21 |
| 27 | 30 | 20 |
| 28 | 30 | 20 |
| 29 | 30 | 20 |
| 30 | 30 | 20 |
| 31 | 30 | 20 |
How October really feels in San Carlos
Once humidity and wind are folded in, October averages 20 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
San Carlos weather by month
How October compares with the rest of the year at a glance. October is the 5th-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 | 23° / 12° | 6 | 1 | 10.4 | 8.8 |
| Feb | 24° / 13° | 7 | 1.2 | 11 | 8.8 |
| Mar | 26° / 15° | 4 | 0.5 | 11.8 | 8.8 |
| Apr | 28° / 18° | 1 | 0.3 | 12.6 | 7.9 |
| May | 31° / 21° | 0 | 0 | 13.4 | 6.1 |
| Jun | 34° / 26° | 1 | 0.2 | 13.7 | 4.3 |
| Jul | 35° / 29° | 10 | 2.4 | 13.6 | 3.1 |
| Aug | 35° / 29° | 22 | 4.2 | 13 | 3.0 |
| Sep | 34° / 27° | 62 | 5.4 | 12.2 | 3.7 |
| Oct | 32° / 23° | 18 | 2.3 | 11.3 | 5.5 |
| Nov | 27° / 17° | 12 | 1.3 | 10.6 | 8.1 |
| Dec | 23° / 13° | 10 | 1.2 | 10.3 | 8.8 |
Cloud cover in October
The sky is clear or mostly clear about 83% of the time in October.
Beyond those clear spells, partly cloudy skies cover about 6% of October, with mostly cloudy or overcast conditions the remaining 12%. 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 89 | 89 | 89 | 90 | 90 | 89 | 89 | 89 | 89 | 88 | 88 | 88 | 88 | 88 | 87 | 87 | 87 | 86 | 86 | 85 | 84 | 83 | 83 |
| Cloudier (%) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 10 | 10 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 14 | 14 | 15 | 16 | 17 | 17 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 90 | 10 |
| 2 | 90 | 10 |
| 3 | 90 | 10 |
| 4 | 90 | 10 |
| 5 | 90 | 10 |
| 6 | 90 | 10 |
| 7 | 90 | 10 |
| 8 | 90 | 10 |
| 9 | 89 | 11 |
| 10 | 89 | 11 |
| 11 | 89 | 11 |
| 12 | 90 | 10 |
| 13 | 90 | 10 |
| 14 | 89 | 11 |
| 15 | 89 | 11 |
| 16 | 89 | 11 |
| 17 | 89 | 11 |
| 18 | 88 | 12 |
| 19 | 88 | 12 |
| 20 | 88 | 12 |
| 21 | 88 | 12 |
| 22 | 88 | 12 |
| 23 | 87 | 13 |
| 24 | 87 | 13 |
| 25 | 87 | 13 |
| 26 | 86 | 14 |
| 27 | 86 | 14 |
| 28 | 85 | 15 |
| 29 | 84 | 16 |
| 30 | 83 | 17 |
| 31 | 83 | 17 |
Chance of precipitation in October
San Carlos gets around 18 mm of rain over 2.3 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 7% and peaks near 12% 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 (%) | 12 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 |
| Rain chance (%) | |
|---|---|
| 1 | 12 |
| 2 | 11 |
| 3 | 11 |
| 4 | 11 |
| 5 | 11 |
| 6 | 11 |
| 7 | 10 |
| 8 | 10 |
| 9 | 10 |
| 10 | 9 |
| 11 | 9 |
| 12 | 8 |
| 13 | 8 |
| 14 | 8 |
| 15 | 7 |
| 16 | 7 |
| 17 | 7 |
| 18 | 6 |
| 19 | 6 |
| 20 | 5 |
| 21 | 5 |
| 22 | 5 |
| 23 | 5 |
| 24 | 4 |
| 25 | 4 |
| 26 | 4 |
| 27 | 4 |
| 28 | 4 |
| 29 | 4 |
| 30 | 4 |
| 31 | 3 |
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 31% of days. Sticky, muggy-or-worse air turns up on roughly 59% 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 (%) | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 7 | 8 | 9 | 9 | 10 | 12 | 13 | 14 | 15 |
| Comfortable (%) | 3 | 4 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 8 | 8 | 9 | 10 | 10 | 11 | 12 | 13 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 21 | 22 | 23 | 23 | 23 |
| Humid (%) | 9 | 10 | 11 | 13 | 14 | 15 | 16 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 25 | 26 | 26 | 27 | 27 | 27 | 27 | 28 | 28 | 29 | 29 | 30 | 30 | 30 | 31 | 32 |
| Muggy (%) | 24 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 34 | 34 | 34 | 34 | 33 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 25 | 25 | 23 |
| Oppressive (%) | 30 | 30 | 29 | 29 | 28 | 27 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 19 | 18 | 17 | 16 | 15 | 15 | 14 | 13 | 12 | 11 | 10 | 10 | 9 | 8 | 7 | 6 |
| Miserable (%) | 33 | 30 | 27 | 25 | 22 | 20 | 17 | 15 | 13 | 11 | 10 | 8 | 7 | 6 | 6 | 5 | 5 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 1 | 3 | 9 | 24 | 30 | 33 |
| 2 | 1 | 4 | 10 | 26 | 30 | 30 |
| 3 | 1 | 4 | 11 | 27 | 29 | 27 |
| 4 | 2 | 4 | 13 | 28 | 29 | 25 |
| 5 | 2 | 5 | 14 | 29 | 28 | 22 |
| 6 | 2 | 5 | 15 | 30 | 27 | 20 |
| 7 | 3 | 6 | 16 | 31 | 27 | 17 |
| 8 | 3 | 6 | 18 | 32 | 26 | 15 |
| 9 | 3 | 7 | 19 | 33 | 25 | 13 |
| 10 | 4 | 8 | 20 | 34 | 24 | 11 |
| 11 | 4 | 8 | 21 | 34 | 23 | 10 |
| 12 | 4 | 9 | 22 | 35 | 22 | 8 |
| 13 | 4 | 10 | 23 | 35 | 21 | 7 |
| 14 | 4 | 10 | 24 | 35 | 20 | 6 |
| 15 | 4 | 11 | 25 | 35 | 19 | 6 |
| 16 | 5 | 12 | 25 | 35 | 19 | 5 |
| 17 | 5 | 13 | 26 | 34 | 18 | 5 |
| 18 | 5 | 13 | 26 | 34 | 17 | 4 |
| 19 | 5 | 14 | 27 | 34 | 16 | 4 |
| 20 | 5 | 15 | 27 | 34 | 15 | 3 |
| 21 | 6 | 16 | 27 | 33 | 15 | 3 |
| 22 | 6 | 17 | 27 | 33 | 14 | 3 |
| 23 | 7 | 18 | 28 | 32 | 13 | 2 |
| 24 | 8 | 19 | 28 | 31 | 12 | 2 |
| 25 | 9 | 20 | 29 | 30 | 11 | 2 |
| 26 | 9 | 21 | 29 | 29 | 10 | 1 |
| 27 | 10 | 21 | 30 | 28 | 10 | 1 |
| 28 | 12 | 22 | 30 | 27 | 9 | 1 |
| 29 | 13 | 23 | 30 | 25 | 8 | 1 |
| 30 | 14 | 23 | 31 | 25 | 7 | 0 |
| 31 | 15 | 23 | 32 | 23 | 6 | 0 |
Wind in October
Winds average 11 km/h in October, the calmest month.
Across October, daily wind ranges from about 11 km/h on the calmest days to 12 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) | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| 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 | 11 | calm |
| 2 | 11 | calm |
| 3 | 11 | calm |
| 4 | 11 | calm |
| 5 | 11 | calm |
| 6 | 11 | calm |
| 7 | 12 | calm |
| 8 | 12 | calm |
| 9 | 12 | calm |
| 10 | 12 | calm |
| 11 | 12 | calm |
| 12 | 12 | calm |
| 13 | 12 | calm |
| 14 | 12 | calm |
| 15 | 12 | calm |
| 16 | 12 | calm |
| 17 | 11 | calm |
| 18 | 11 | calm |
| 19 | 11 | calm |
| 20 | 11 | calm |
| 21 | 11 | calm |
| 22 | 11 | calm |
| 23 | 11 | calm |
| 24 | 11 | calm |
| 25 | 11 | calm |
| 26 | 11 | calm |
| 27 | 11 | calm |
| 28 | 11 | calm |
| 29 | 11 | calm |
| 30 | 11 | calm |
| 31 | 11 | calm |
Sunrise & sunset in October
Daylight runs from about 11 h 42 min at the start of October to 10 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 48 minutes over October. Sunrise moves from 6:21 AM to 6:40 AM, and sunset from 6:05 PM to 5:36 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 | 11.5 | 11.5 | 11.5 | 11.5 | 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 | 11.0 | 10.9 |
| Sunrise (AM) | 6:21 | 6:22 | 6:22 | 6:23 | 6:23 | 6:24 | 6:24 | 6:25 | 6:25 | 6:26 | 6:27 | 6:27 | 6:28 | 6:28 | 6:29 | 6:30 | 6:30 | 6:31 | 6:31 | 6:32 | 6:33 | 6:33 | 6:34 | 6:35 | 6:35 | 6:36 | 6:37 | 6:38 | 6:38 | 6:39 | 6:40 |
| Sunset (PM) | 6:05 | 6:04 | 6:03 | 6:02 | 6:01 | 5:59 | 5:58 | 5:57 | 5:56 | 5:55 | 5:54 | 5:53 | 5:52 | 5:51 | 5:50 | 5:49 | 5:48 | 5:47 | 5:46 | 5:45 | 5:44 | 5:43 | 5:42 | 5:41 | 5:41 | 5:40 | 5:39 | 5:38 | 5:37 | 5:37 | 5:36 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.7 | 6:21 | 6:05 |
| 2 | 11.7 | 6:22 | 6:04 |
| 3 | 11.7 | 6:22 | 6:03 |
| 4 | 11.7 | 6:23 | 6:02 |
| 5 | 11.6 | 6:23 | 6:01 |
| 6 | 11.6 | 6:24 | 5:59 |
| 7 | 11.6 | 6:24 | 5:58 |
| 8 | 11.5 | 6:25 | 5:57 |
| 9 | 11.5 | 6:25 | 5:56 |
| 10 | 11.5 | 6:26 | 5:55 |
| 11 | 11.5 | 6:27 | 5:54 |
| 12 | 11.4 | 6:27 | 5:53 |
| 13 | 11.4 | 6:28 | 5:52 |
| 14 | 11.4 | 6:28 | 5:51 |
| 15 | 11.3 | 6:29 | 5:50 |
| 16 | 11.3 | 6:30 | 5:49 |
| 17 | 11.3 | 6:30 | 5:48 |
| 18 | 11.3 | 6:31 | 5:47 |
| 19 | 11.2 | 6:31 | 5:46 |
| 20 | 11.2 | 6:32 | 5:45 |
| 21 | 11.2 | 6:33 | 5:44 |
| 22 | 11.2 | 6:33 | 5:43 |
| 23 | 11.1 | 6:34 | 5:42 |
| 24 | 11.1 | 6:35 | 5:41 |
| 25 | 11.1 | 6:35 | 5:41 |
| 26 | 11.1 | 6:36 | 5:40 |
| 27 | 11.0 | 6:37 | 5:39 |
| 28 | 11.0 | 6:38 | 5:38 |
| 29 | 11.0 | 6:38 | 5:37 |
| 30 | 11.0 | 6:39 | 5:37 |
| 31 | 10.9 | 6:40 | 5:36 |
Solar energy in October
Average shortwave solar energy reaching the ground each day in October, about 5.37 kWh/m².
For context, solar energy here swings from a low near 3.93 kWh/m² to a high of 8.15 kWh/m² in May across the year — October's 5.37 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) | 5.8 | 5.7 | 5.7 | 5.7 | 5.7 | 5.6 | 5.6 | 5.6 | 5.6 | 5.5 | 5.5 | 5.5 | 5.5 | 5.4 | 5.4 | 5.4 | 5.4 | 5.3 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.2 | 5.1 | 5.1 | 5.1 | 5.0 | 5.0 | 5.0 | 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 | 5.8 | Bright |
| 2 | 5.7 | Bright |
| 3 | 5.7 | Bright |
| 4 | 5.7 | Bright |
| 5 | 5.7 | Bright |
| 6 | 5.6 | Bright |
| 7 | 5.6 | Bright |
| 8 | 5.6 | Bright |
| 9 | 5.6 | Bright |
| 10 | 5.5 | Bright |
| 11 | 5.5 | Bright |
| 12 | 5.5 | Bright |
| 13 | 5.5 | Bright |
| 14 | 5.4 | Bright |
| 15 | 5.4 | Bright |
| 16 | 5.4 | Bright |
| 17 | 5.4 | Bright |
| 18 | 5.3 | Bright |
| 19 | 5.3 | Bright |
| 20 | 5.3 | Bright |
| 21 | 5.3 | Bright |
| 22 | 5.2 | Bright |
| 23 | 5.2 | Bright |
| 24 | 5.2 | Bright |
| 25 | 5.1 | Bright |
| 26 | 5.1 | Bright |
| 27 | 5.1 | Bright |
| 28 | 5.0 | Bright |
| 29 | 5.0 | Bright |
| 30 | 5.0 | Bright |
| 31 | 4.9 | Bright |
Hazard calendar for San Carlos
In October, San Carlos sits inside its pacific hurricane season. The full year is below, with each hazard's peak months called out.
San Carlos sits in the eastern Pacific hurricane zone; the season peaks August–September.
Is October a good time to visit San Carlos?
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 San Carlos for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for San Carlos in October
From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In October, San Carlos sees daytime highs around 32°C and nights near 23°C. Pack light clothes. Worth having: sun protection.
Sea temperature near San Carlos in October
The nearest coast averages about 28°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 30°C and coldest in February near 18°C.
It's comfortable for a long swim from Apr 6 to Dec 16 — about 8.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 18 | 18 | 19 | 21 | 24 | 27 | 29 | 30 | 30 | 28 | 23 | 20 |
| Comfort | Cool | Cool | Cool | Refreshing | Refreshing | Warm | Tropical | Tropical | Tropical | Warm | Refreshing | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 18 | Cool |
| Feb | 18 | Cool |
| Mar | 19 | Cool |
| Apr | 21 | Refreshing |
| May | 24 | Refreshing |
| Jun | 27 | Warm |
| Jul | 29 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 28 | Warm |
| Nov | 23 | Refreshing |
| Dec | 20 | Cool |
UV index in San Carlos in October
Clear-sky midday UV in October peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in San Carlos peaks around July 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 4 (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) | 5 | 6 | 8 | 10 | 10 | 12 | 12 | 11 | 10 | 7 | 5 | 4 |
| Level | Moderate | High | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 5 | Moderate |
| Feb | 6 | High |
| Mar | 8 | Very high |
| Apr | 10 | Very high |
| May | 10 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 10 | Very high |
| Oct | 7 | Very high |
| Nov | 5 | High |
| Dec | 4 | Moderate |
Air quality in San Carlos 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 San Carlos is worst in July — around 18 µg/m³ PM2.5 (moderate), about 3.9× the cleanest month (January, 5 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) | 5 | 5 | 5 | 6 | 5 | 8 | 18 | 13 | 8 | 5 | 5 | 5 |
| Level | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 5 | Good |
| Feb | 5 | Good |
| Mar | 5 | Good |
| Apr | 6 | Good |
| May | 5 | Good |
| Jun | 8 | Good |
| Jul | 18 | Moderate |
| Aug | 13 | Moderate |
| Sep | 8 | Good |
| Oct | 5 | Good |
| Nov | 5 | Good |
| Dec | 5 | Good |
Where is San Carlos?
San Carlos sits at 28.0°N, 111.0°W, 0 m above sea level, in Mexico. The nearest listed city is Heroica Guaymas, 15 km away.
Topography around San Carlos
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Carlos.
Within 3 km, the terrain around San Carlos has only modest variations in elevation — a maximum elevation change of 236 m around an average of 23 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 838 m; within 80 km, large variations in elevation — a maximum elevation change of 1,146 m.
The land around San Carlos is covered by water (40%) and shrubs (39%) within 3 km, shrubs (46%) and water (46%) within 16 km, and shrubs (46%) and water (42%) 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 San Carlos (27.9575°, -111.0435°, elevation 0 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).