Arriaga weather in September
In September, Arriaga sees average daytime highs of 30°C and overnight lows near 24°C, with 301 mm of rain across 25 wet days and about 12.1 hours of daylight. It is the 7th-warmest and 1st-wettest month of the year here.
Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 7% of the time in September, and the air most often feels oppressive.
Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Arriaga's 12th-clearest and 11th-windiest month. For the whole year in context, see Arriaga's year-round climate.
- Daytime high
- 30°
- 7th warmest
- Overnight low
- 24°
- 8th coldest
- Rainfall
- 301 mm
- 25 wet days
- Daylight
- 12 h 06 min
- 6:07 AM – 6:13 PM
- Cloud cover
- 81%
- 12th clearest
- Wind
- 5 km/h
- 11th windiest
- Solar energy
- 5.05 kWh/m²
- Travel score
- 3.3
- out of 10
Arriaga is municipal seat of Arriaga, State of Chiapas, Mexico.
- Founded
- 1910
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Day-to-day highs hold fairly steady near 30°C through the month.
A typical September day in Arriaga reaches about 30°C in the afternoon and slips back to 24°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, September runs on par with August and on par with 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 (°C) | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 30 | 24 |
| 2 | 30 | 24 |
| 3 | 30 | 24 |
| 4 | 30 | 24 |
| 5 | 30 | 24 |
| 6 | 30 | 24 |
| 7 | 30 | 24 |
| 8 | 30 | 24 |
| 9 | 30 | 24 |
| 10 | 30 | 24 |
| 11 | 30 | 24 |
| 12 | 30 | 24 |
| 13 | 30 | 24 |
| 14 | 30 | 24 |
| 15 | 30 | 24 |
| 16 | 30 | 24 |
| 17 | 30 | 24 |
| 18 | 30 | 24 |
| 19 | 30 | 24 |
| 20 | 30 | 24 |
| 21 | 30 | 24 |
| 22 | 29 | 24 |
| 23 | 29 | 24 |
| 24 | 29 | 24 |
| 25 | 29 | 24 |
| 26 | 29 | 24 |
| 27 | 29 | 24 |
| 28 | 29 | 24 |
| 29 | 29 | 24 |
| 30 | 29 | 24 |
How September really feels in Arriaga
Once humidity and wind are folded in, September averages 30 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 September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Arriaga weather by month
How September compares with the rest of the year at a glance. September is the 7th-warmest and 1st-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 28° / 21° | 2 | 0.5 | 11.1 | 8.3 |
| Feb | 29° / 21° | 2 | 0.7 | 11.5 | 7.5 |
| Mar | 30° / 22° | 7 | 1.8 | 11.9 | 6.7 |
| Apr | 31° / 24° | 20 | 5.4 | 12.4 | 5.5 |
| May | 31° / 24° | 108 | 17.4 | 12.7 | 4.0 |
| Jun | 30° / 24° | 280 | 25.1 | 12.9 | 3.1 |
| Jul | 31° / 24° | 192 | 23.3 | 12.9 | 3.3 |
| Aug | 30° / 24° | 244 | 24.7 | 12.5 | 3.1 |
| Sep | 30° / 24° | 301 | 25 | 12.1 | 3.3 |
| Oct | 29° / 24° | 149 | 13.9 | 11.6 | 4.8 |
| Nov | 29° / 23° | 30 | 2.8 | 11.2 | 6.8 |
| Dec | 28° / 21° | 2 | 0.7 | 11.1 | 7.7 |
Cloud cover in September
The sky is clear or mostly clear about 7% of the time in September, the cloudiest month of the year.
Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 82%.
| 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 (%) | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 16 | 17 | 17 | 17 | 20 | 20 | 21 | 22 |
| Cloudier (%) | 81 | 81 | 81 | 81 | 82 | 82 | 82 | 82 | 81 | 81 | 82 | 82 | 82 | 82 | 82 | 84 | 84 | 84 | 84 | 85 | 85 | 85 | 84 | 83 | 83 | 83 | 80 | 80 | 79 | 78 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 19 | 81 |
| 2 | 19 | 81 |
| 3 | 19 | 81 |
| 4 | 19 | 81 |
| 5 | 18 | 82 |
| 6 | 18 | 82 |
| 7 | 18 | 82 |
| 8 | 18 | 82 |
| 9 | 19 | 81 |
| 10 | 19 | 81 |
| 11 | 18 | 82 |
| 12 | 18 | 82 |
| 13 | 18 | 82 |
| 14 | 18 | 82 |
| 15 | 18 | 82 |
| 16 | 16 | 84 |
| 17 | 16 | 84 |
| 18 | 16 | 84 |
| 19 | 16 | 84 |
| 20 | 15 | 85 |
| 21 | 15 | 85 |
| 22 | 15 | 85 |
| 23 | 16 | 84 |
| 24 | 17 | 83 |
| 25 | 17 | 83 |
| 26 | 17 | 83 |
| 27 | 20 | 80 |
| 28 | 20 | 80 |
| 29 | 21 | 79 |
| 30 | 22 | 78 |
Chance of precipitation in September
Arriaga gets around 301 mm of rain over 25 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 82% and peaks near 85% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 85 | 85 | 85 | 85 | 85 | 84 | 84 | 84 | 83 | 83 | 83 | 83 | 83 | 82 | 82 | 82 | 82 | 83 | 83 | 83 | 83 | 82 | 81 | 81 | 79 | 78 | 77 | 75 | 74 | 72 |
| Rain chance (%) | |
|---|---|
| 1 | 85 |
| 2 | 85 |
| 3 | 85 |
| 4 | 85 |
| 5 | 85 |
| 6 | 84 |
| 7 | 84 |
| 8 | 84 |
| 9 | 83 |
| 10 | 83 |
| 11 | 83 |
| 12 | 83 |
| 13 | 83 |
| 14 | 82 |
| 15 | 82 |
| 16 | 82 |
| 17 | 82 |
| 18 | 83 |
| 19 | 83 |
| 20 | 83 |
| 21 | 83 |
| 22 | 82 |
| 23 | 81 |
| 24 | 81 |
| 25 | 79 |
| 26 | 78 |
| 27 | 77 |
| 28 | 75 |
| 29 | 74 |
| 30 | 72 |
Humidity in September
Most of September feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the oppressive band about 93% of days. Sticky, muggy-or-worse air turns up on roughly 100% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 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 | 1 | 1 | 1 | 1 |
| Muggy (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 12 | 13 | 14 | 14 |
| Oppressive (%) | 98 | 98 | 98 | 98 | 98 | 98 | 97 | 97 | 97 | 97 | 96 | 95 | 95 | 95 | 95 | 95 | 95 | 94 | 94 | 93 | 93 | 92 | 91 | 90 | 89 | 87 | 85 | 84 | 83 | 83 |
| Miserable (%) | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|
| 1 | 0 | 1 | 98 | 1 |
| 2 | 0 | 1 | 98 | 1 |
| 3 | 0 | 1 | 98 | 1 |
| 4 | 0 | 1 | 98 | 1 |
| 5 | 0 | 1 | 98 | 1 |
| 6 | 0 | 1 | 98 | 1 |
| 7 | 0 | 1 | 97 | 2 |
| 8 | 0 | 1 | 97 | 2 |
| 9 | 0 | 1 | 97 | 2 |
| 10 | 0 | 1 | 97 | 2 |
| 11 | 0 | 2 | 96 | 2 |
| 12 | 0 | 2 | 95 | 3 |
| 13 | 0 | 2 | 95 | 3 |
| 14 | 0 | 2 | 95 | 3 |
| 15 | 0 | 2 | 95 | 3 |
| 16 | 0 | 2 | 95 | 3 |
| 17 | 0 | 2 | 95 | 3 |
| 18 | 0 | 3 | 94 | 3 |
| 19 | 0 | 3 | 94 | 3 |
| 20 | 0 | 4 | 93 | 3 |
| 21 | 0 | 5 | 93 | 2 |
| 22 | 0 | 6 | 92 | 2 |
| 23 | 0 | 7 | 91 | 2 |
| 24 | 0 | 8 | 90 | 2 |
| 25 | 0 | 9 | 89 | 2 |
| 26 | 1 | 10 | 87 | 2 |
| 27 | 1 | 12 | 85 | 2 |
| 28 | 1 | 13 | 84 | 2 |
| 29 | 1 | 14 | 83 | 2 |
| 30 | 1 | 14 | 83 | 2 |
Wind in September
Winds average 5 km/h in September.
Across September, daily wind ranges from about 5 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 5 | 5 | 5 | 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 | 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 |
| 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 | 5 | calm |
| 18 | 5 | calm |
| 19 | 5 | 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 |
Sunrise & sunset in September
Daylight runs from about 12 h 18 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 24 minutes over September. Sunrise moves from 6:06 AM to 6:09 AM, and sunset from 6:25 PM to 6:01 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) | 12.3 | 12.3 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 |
| Sunrise (AM) | 6:06 | 6:06 | 6:06 | 6:06 | 6:06 | 6:06 | 6:06 | 6:06 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:08 | 6:08 | 6:08 | 6:08 | 6:08 | 6:08 | 6:08 | 6:08 | 6:08 | 6:09 | 6:09 | 6:09 |
| Sunset (PM) | 6:25 | 6:24 | 6:23 | 6:23 | 6:22 | 6:21 | 6:20 | 6:19 | 6:18 | 6:18 | 6:17 | 6:16 | 6:15 | 6:14 | 6:13 | 6:13 | 6:12 | 6:11 | 6:10 | 6:09 | 6:08 | 6:08 | 6:07 | 6:06 | 6:05 | 6:04 | 6:03 | 6:03 | 6:02 | 6:01 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.3 | 6:06 | 6:25 |
| 2 | 12.3 | 6:06 | 6:24 |
| 3 | 12.3 | 6:06 | 6:23 |
| 4 | 12.3 | 6:06 | 6:23 |
| 5 | 12.3 | 6:06 | 6:22 |
| 6 | 12.2 | 6:06 | 6:21 |
| 7 | 12.2 | 6:06 | 6:20 |
| 8 | 12.2 | 6:06 | 6:19 |
| 9 | 12.2 | 6:07 | 6:18 |
| 10 | 12.2 | 6:07 | 6:18 |
| 11 | 12.2 | 6:07 | 6:17 |
| 12 | 12.2 | 6:07 | 6:16 |
| 13 | 12.1 | 6:07 | 6:15 |
| 14 | 12.1 | 6:07 | 6:14 |
| 15 | 12.1 | 6:07 | 6:13 |
| 16 | 12.1 | 6:07 | 6:13 |
| 17 | 12.1 | 6:07 | 6:12 |
| 18 | 12.1 | 6:07 | 6:11 |
| 19 | 12.0 | 6:08 | 6:10 |
| 20 | 12.0 | 6:08 | 6:09 |
| 21 | 12.0 | 6:08 | 6:08 |
| 22 | 12.0 | 6:08 | 6:08 |
| 23 | 12.0 | 6:08 | 6:07 |
| 24 | 12.0 | 6:08 | 6:06 |
| 25 | 11.9 | 6:08 | 6:05 |
| 26 | 11.9 | 6:08 | 6:04 |
| 27 | 11.9 | 6:08 | 6:03 |
| 28 | 11.9 | 6:09 | 6:03 |
| 29 | 11.9 | 6:09 | 6:02 |
| 30 | 11.9 | 6:09 | 6:01 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 5.05 kWh/m².
For context, solar energy here swings from a low near 5.04 kWh/m² to a high of 6.85 kWh/m² in April across the year — September's 5.05 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.4 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.1 | 5.1 | 5.1 | 5.1 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.9 | 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 |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.4 | Bright |
| 2 | 5.3 | Bright |
| 3 | 5.3 | Bright |
| 4 | 5.3 | Bright |
| 5 | 5.3 | Bright |
| 6 | 5.3 | Bright |
| 7 | 5.3 | Bright |
| 8 | 5.2 | Bright |
| 9 | 5.2 | Bright |
| 10 | 5.2 | Bright |
| 11 | 5.2 | Bright |
| 12 | 5.2 | Bright |
| 13 | 5.2 | Bright |
| 14 | 5.1 | Bright |
| 15 | 5.1 | Bright |
| 16 | 5.1 | Bright |
| 17 | 5.1 | Bright |
| 18 | 5.0 | Bright |
| 19 | 5.0 | Bright |
| 20 | 5.0 | Bright |
| 21 | 5.0 | Bright |
| 22 | 5.0 | Bright |
| 23 | 4.9 | Bright |
| 24 | 4.9 | Bright |
| 25 | 4.9 | Bright |
| 26 | 4.9 | Bright |
| 27 | 4.9 | Bright |
| 28 | 4.9 | Bright |
| 29 | 4.9 | Bright |
| 30 | 4.9 | Bright |
Hazard calendar for Arriaga
In September, Arriaga sits inside its atlantic hurricane and monsoon season. The full year is below, with each hazard's peak months called out.
Arriaga sits in the Atlantic hurricane belt; the season peaks August–October.
Arriaga's monsoon runs June–October, when most of the year's rain falls.
Is September a good time to visit Arriaga?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is a weaker month for outdoor sightseeing in Arriaga.
What to pack for Arriaga in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Arriaga sees daytime highs around 30°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.
Sea temperature near Arriaga in September
The nearest coast averages about 30°C 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 27 km away) is warmest in August at about 30°C and coldest in February 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 | 28 | 29 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 28 |
| Comfort | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Warm |
| Feb | 28 | Warm |
| Mar | 28 | Tropical |
| Apr | 29 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 30 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Tropical |
UV index in Arriaga in September
Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Arriaga peaks around April 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 8 (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) | 9 | 12 | 13 | 13 | 12 | 13 | 12 | 13 | 12 | 11 | 9 | 8 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 12 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 13 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 8 | Very high |
Air quality in Arriaga 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 Arriaga is worst in May — around 40 µg/m³ PM2.5 (poor), about 3.5× the cleanest month (January, 11 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) | 11 | 13 | 19 | 38 | 40 | 21 | 27 | 22 | 19 | 14 | 12 | 12 |
| Level | Good | Moderate | Moderate | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 13 | Moderate |
| Mar | 19 | Moderate |
| Apr | 38 | Poor |
| May | 40 | Poor |
| Jun | 21 | Moderate |
| Jul | 27 | Moderate |
| Aug | 22 | Moderate |
| Sep | 19 | Moderate |
| Oct | 14 | Moderate |
| Nov | 12 | Moderate |
| Dec | 12 | Good |
Where is Arriaga?
Arriaga sits at 16.2°N, 93.9°W, 63 m above sea level, in Mexico. The nearest listed city is Tonalá, 22 km away.
Topography around Arriaga
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Arriaga.
Within 3 km, the terrain around Arriaga has significant variations in elevation — a maximum elevation change of 407 m around an average of 96 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,595 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,438 m.
The land around Arriaga is covered by trees (43%) and grassland (37%) within 3 km, trees (58%) and grassland (37%) within 16 km, and trees (45%), water (26%) and grassland (23%) 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 Arriaga (16.2356°, -93.8997°, elevation 63 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).