Vigan weather in September
In September, Vigan sees average daytime highs of 28°C and overnight lows near 25°C, with 411 mm of rain across 27.6 wet days and about 12.1 hours of daylight. It is the 9th-warmest and 3rd-wettest month of the year here.
Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 6% 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 Vigan's 10th-clearest and 10th-windiest month. For the whole year in context, see Vigan's year-round climate.
- Daytime high
- 28°
- 9th warmest
- Overnight low
- 25°
- 8th coldest
- Rainfall
- 411 mm
- 27.6 wet days
- Daylight
- 12 h 06 min
- 5:50 AM – 5:56 PM
- Cloud cover
- 83%
- 10th clearest
- Wind
- 9 km/h
- 10th windiest
- Solar energy
- 4.88 kWh/m²
- Travel score
- 3.3
- out of 10
Vigan is city of the Philippines and capital of the province of Ilocos Sur.
- Density
- 1,933/km²
- people per km²
- Founded
- 1572
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Day-to-day highs hold fairly steady near 28°C through the month.
A typical September day in Vigan reaches about 28°C in the afternoon and slips back to 25°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°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) | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| Avg low (°C) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 25 |
| 2 | 28 | 25 |
| 3 | 28 | 25 |
| 4 | 28 | 25 |
| 5 | 28 | 25 |
| 6 | 28 | 25 |
| 7 | 28 | 25 |
| 8 | 28 | 25 |
| 9 | 28 | 25 |
| 10 | 28 | 25 |
| 11 | 28 | 25 |
| 12 | 28 | 25 |
| 13 | 28 | 25 |
| 14 | 28 | 25 |
| 15 | 28 | 25 |
| 16 | 28 | 25 |
| 17 | 28 | 25 |
| 18 | 28 | 25 |
| 19 | 28 | 25 |
| 20 | 28 | 25 |
| 21 | 28 | 25 |
| 22 | 28 | 25 |
| 23 | 28 | 25 |
| 24 | 29 | 25 |
| 25 | 29 | 25 |
| 26 | 29 | 25 |
| 27 | 29 | 25 |
| 28 | 29 | 25 |
| 29 | 29 | 24 |
| 30 | 29 | 24 |
How September really feels in Vigan
Once humidity and wind are folded in, September averages 6 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.
Vigan weather by month
How September compares with the rest of the year at a glance. September is the 9th-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 | 28° / 22° | 16 | 3.1 | 11.1 | 7.7 |
| Feb | 28° / 22° | 16 | 3 | 11.4 | 7.7 |
| Mar | 29° / 23° | 23 | 5.6 | 11.9 | 6.7 |
| Apr | 29° / 25° | 49 | 12 | 12.4 | 5.4 |
| May | 29° / 25° | 203 | 22.9 | 12.8 | 3.7 |
| Jun | 29° / 25° | 367 | 27.2 | 13 | 3.1 |
| Jul | 29° / 25° | 590 | 29.2 | 12.9 | 3.1 |
| Aug | 28° / 25° | 617 | 28.8 | 12.6 | 3.2 |
| Sep | 28° / 25° | 411 | 27.6 | 12.1 | 3.3 |
| Oct | 29° / 24° | 240 | 19.5 | 11.6 | 4.3 |
| Nov | 29° / 24° | 93 | 12.8 | 11.2 | 5.2 |
| Dec | 28° / 23° | 45 | 7.4 | 11 | 6.4 |
Cloud cover in September
The sky is clear or mostly clear about 6% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 83%. 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 14 | 14 | 14 | 15 | 16 | 17 | 18 | 18 | 18 | 20 | 20 | 22 | 23 | 24 | 24 | 25 | 25 | 27 | 28 |
| Cloudier (%) | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 87 | 87 | 87 | 86 | 86 | 86 | 85 | 84 | 83 | 82 | 82 | 82 | 80 | 80 | 78 | 77 | 76 | 76 | 75 | 75 | 73 | 72 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 12 | 88 |
| 2 | 12 | 88 |
| 3 | 12 | 88 |
| 4 | 12 | 88 |
| 5 | 12 | 88 |
| 6 | 12 | 88 |
| 7 | 12 | 88 |
| 8 | 12 | 88 |
| 9 | 13 | 87 |
| 10 | 13 | 87 |
| 11 | 13 | 87 |
| 12 | 14 | 86 |
| 13 | 14 | 86 |
| 14 | 14 | 86 |
| 15 | 15 | 85 |
| 16 | 16 | 84 |
| 17 | 17 | 83 |
| 18 | 18 | 82 |
| 19 | 18 | 82 |
| 20 | 18 | 82 |
| 21 | 20 | 80 |
| 22 | 20 | 80 |
| 23 | 22 | 78 |
| 24 | 23 | 77 |
| 25 | 24 | 76 |
| 26 | 24 | 76 |
| 27 | 25 | 75 |
| 28 | 25 | 75 |
| 29 | 27 | 73 |
| 30 | 28 | 72 |
Chance of precipitation in September
Vigan gets around 411 mm of rain over 27.6 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 91% and peaks near 95% 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 (%) | 92 | 93 | 93 | 93 | 93 | 93 | 93 | 94 | 94 | 94 | 94 | 94 | 95 | 95 | 94 | 94 | 94 | 93 | 92 | 92 | 91 | 91 | 90 | 89 | 88 | 87 | 86 | 85 | 84 | 83 |
| Rain chance (%) | |
|---|---|
| 1 | 92 |
| 2 | 93 |
| 3 | 93 |
| 4 | 93 |
| 5 | 93 |
| 6 | 93 |
| 7 | 93 |
| 8 | 94 |
| 9 | 94 |
| 10 | 94 |
| 11 | 94 |
| 12 | 94 |
| 13 | 95 |
| 14 | 95 |
| 15 | 94 |
| 16 | 94 |
| 17 | 94 |
| 18 | 93 |
| 19 | 92 |
| 20 | 92 |
| 21 | 91 |
| 22 | 91 |
| 23 | 90 |
| 24 | 89 |
| 25 | 88 |
| 26 | 87 |
| 27 | 86 |
| 28 | 85 |
| 29 | 84 |
| 30 | 83 |
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 82% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Muggy (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 |
| Oppressive (%) | 79 | 79 | 80 | 80 | 80 | 80 | 80 | 81 | 81 | 81 | 81 | 81 | 81 | 82 | 81 | 81 | 82 | 82 | 82 | 83 | 83 | 83 | 83 | 83 | 84 | 84 | 83 | 84 | 84 | 85 |
| Miserable (%) | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 13 |
| Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|
| 1 | 0 | 79 | 21 |
| 2 | 0 | 79 | 21 |
| 3 | 0 | 80 | 20 |
| 4 | 0 | 80 | 20 |
| 5 | 0 | 80 | 20 |
| 6 | 0 | 80 | 20 |
| 7 | 0 | 80 | 20 |
| 8 | 0 | 81 | 19 |
| 9 | 0 | 81 | 19 |
| 10 | 0 | 81 | 19 |
| 11 | 0 | 81 | 19 |
| 12 | 0 | 81 | 19 |
| 13 | 0 | 81 | 19 |
| 14 | 0 | 82 | 18 |
| 15 | 1 | 81 | 18 |
| 16 | 1 | 81 | 18 |
| 17 | 1 | 82 | 17 |
| 18 | 1 | 82 | 17 |
| 19 | 1 | 82 | 17 |
| 20 | 1 | 83 | 16 |
| 21 | 1 | 83 | 16 |
| 22 | 1 | 83 | 16 |
| 23 | 1 | 83 | 16 |
| 24 | 1 | 83 | 16 |
| 25 | 1 | 84 | 15 |
| 26 | 1 | 84 | 15 |
| 27 | 2 | 83 | 15 |
| 28 | 2 | 84 | 14 |
| 29 | 2 | 84 | 14 |
| 30 | 2 | 85 | 13 |
Wind in September
Winds average 9 km/h in September.
Across September, daily wind ranges from about 9 km/h on the calmest days to 11 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) | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| 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 | 11 | calm |
| 2 | 11 | calm |
| 3 | 11 | calm |
| 4 | 11 | calm |
| 5 | 10 | calm |
| 6 | 10 | calm |
| 7 | 10 | calm |
| 8 | 10 | calm |
| 9 | 10 | calm |
| 10 | 10 | calm |
| 11 | 10 | calm |
| 12 | 10 | calm |
| 13 | 10 | calm |
| 14 | 10 | calm |
| 15 | 9 | calm |
| 16 | 9 | calm |
| 17 | 9 | calm |
| 18 | 9 | calm |
| 19 | 9 | calm |
| 20 | 9 | calm |
| 21 | 9 | calm |
| 22 | 9 | calm |
| 23 | 9 | calm |
| 24 | 9 | calm |
| 25 | 9 | calm |
| 26 | 9 | calm |
| 27 | 9 | calm |
| 28 | 9 | calm |
| 29 | 9 | calm |
| 30 | 9 | 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 5:48 AM to 5:52 AM, and sunset from 6:09 PM to 5:44 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 | 12.3 | 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) | 5:48 | 5:48 | 5:48 | 5:48 | 5:48 | 5:48 | 5:49 | 5:49 | 5:49 | 5:49 | 5:49 | 5:49 | 5:49 | 5:50 | 5:50 | 5:50 | 5:50 | 5:50 | 5:50 | 5:50 | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:52 | 5:52 | 5:52 |
| Sunset (PM) | 6:09 | 6:08 | 6:07 | 6:06 | 6:05 | 6:04 | 6:04 | 6:03 | 6:02 | 6:01 | 6:00 | 5:59 | 5:58 | 5:57 | 5:57 | 5:56 | 5:55 | 5:54 | 5:53 | 5:52 | 5:51 | 5:50 | 5:50 | 5:49 | 5:48 | 5:47 | 5:46 | 5:45 | 5:44 | 5:44 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.3 | 5:48 | 6:09 |
| 2 | 12.3 | 5:48 | 6:08 |
| 3 | 12.3 | 5:48 | 6:07 |
| 4 | 12.3 | 5:48 | 6:06 |
| 5 | 12.3 | 5:48 | 6:05 |
| 6 | 12.3 | 5:48 | 6:04 |
| 7 | 12.2 | 5:49 | 6:04 |
| 8 | 12.2 | 5:49 | 6:03 |
| 9 | 12.2 | 5:49 | 6:02 |
| 10 | 12.2 | 5:49 | 6:01 |
| 11 | 12.2 | 5:49 | 6:00 |
| 12 | 12.2 | 5:49 | 5:59 |
| 13 | 12.1 | 5:49 | 5:58 |
| 14 | 12.1 | 5:50 | 5:57 |
| 15 | 12.1 | 5:50 | 5:57 |
| 16 | 12.1 | 5:50 | 5:56 |
| 17 | 12.1 | 5:50 | 5:55 |
| 18 | 12.1 | 5:50 | 5:54 |
| 19 | 12.0 | 5:50 | 5:53 |
| 20 | 12.0 | 5:50 | 5:52 |
| 21 | 12.0 | 5:51 | 5:51 |
| 22 | 12.0 | 5:51 | 5:50 |
| 23 | 12.0 | 5:51 | 5:50 |
| 24 | 12.0 | 5:51 | 5:49 |
| 25 | 11.9 | 5:51 | 5:48 |
| 26 | 11.9 | 5:51 | 5:47 |
| 27 | 11.9 | 5:51 | 5:46 |
| 28 | 11.9 | 5:52 | 5:45 |
| 29 | 11.9 | 5:52 | 5:44 |
| 30 | 11.9 | 5:52 | 5:44 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 4.88 kWh/m².
For context, solar energy here swings from a low near 4.29 kWh/m² to a high of 6.68 kWh/m² in April across the year — September's 4.88 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) | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
| 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 | 4.8 | Bright |
| 2 | 4.8 | Bright |
| 3 | 4.8 | Bright |
| 4 | 4.8 | Bright |
| 5 | 4.8 | Bright |
| 6 | 4.8 | Bright |
| 7 | 4.8 | Bright |
| 8 | 4.8 | Bright |
| 9 | 4.8 | Bright |
| 10 | 4.8 | Bright |
| 11 | 4.8 | Bright |
| 12 | 4.8 | Bright |
| 13 | 4.8 | Bright |
| 14 | 4.8 | Bright |
| 15 | 4.8 | Bright |
| 16 | 4.8 | Bright |
| 17 | 4.8 | Bright |
| 18 | 4.8 | Bright |
| 19 | 4.9 | Bright |
| 20 | 4.9 | Bright |
| 21 | 4.9 | Bright |
| 22 | 4.9 | Bright |
| 23 | 4.9 | Bright |
| 24 | 5.0 | Bright |
| 25 | 5.0 | Bright |
| 26 | 5.0 | Bright |
| 27 | 5.0 | Bright |
| 28 | 5.0 | Bright |
| 29 | 5.0 | Bright |
| 30 | 5.0 | Bright |
Hazard calendar for Vigan
In September, Vigan sits inside its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.
Vigan sits in the Pacific typhoon belt; the season peaks July–October.
Vigan's monsoon runs June–September, when most of the year's rain falls.
Is September a good time to visit Vigan?
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 Vigan.
What to pack for Vigan in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Vigan sees daytime highs around 28°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.
Sea temperature near Vigan in September
The nearest coast averages about 29°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in June at about 30°C and coldest in February near 27°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) | 27 | 27 | 28 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 28 |
| Comfort | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 28 | Warm |
| Apr | 29 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 30 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Tropical |
UV index in Vigan 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 Vigan peaks around August 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 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 | 11 | 12 | 12 | 12 | 12 | 12 | 13 | 12 | 10 | 8 | 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 | 11 | Extreme |
| Mar | 12 | Extreme |
| Apr | 12 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 10 | Extreme |
| Nov | 8 | Very high |
| Dec | 8 | Very high |
Air quality in Vigan 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 Vigan is worst in March — around 16 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 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) | 10 | 12 | 16 | 16 | 11 | 10 | 9 | 10 | 10 | 10 | 10 | 9 |
| Level | Good | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 12 | Moderate |
| Mar | 16 | Moderate |
| Apr | 16 | Moderate |
| May | 11 | Good |
| Jun | 10 | Good |
| Jul | 9 | Good |
| Aug | 10 | Good |
| Sep | 10 | Good |
| Oct | 10 | Good |
| Nov | 10 | Good |
| Dec | 9 | Good |
Where is Vigan?
Vigan sits at 17.6°N, 120.4°E, 19 m above sea level, in Philippines. The nearest listed city is Bantay, 1.0 km away.
Topography around Vigan
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Vigan.
Within 3 km, the terrain around Vigan has only modest variations in elevation — a maximum elevation change of 45 m around an average of 9 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,097 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,557 m.
The land around Vigan is covered by cropland (44%), trees (31%) and artificial surfaces (21%) within 3 km, water (50%) and trees (29%) within 16 km, and trees (49%) and water (38%) within 80 km.
Philippines travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B / C
- 230 V · 60 Hz
- Prices
- ≈ 33% of US
- price level, 2025
- GDP per capita
- $4,171
- 2025
- Happiness
- 6.2 / 10
- World Happiness, 2025
- Safe drinking water
- 48%
- of population, 2024
- Homicide rate
- 4.3
- per 100k, 2023
- Road deaths
- 12
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- High
- EF EPI 569
- 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 Vigan (17.5747°, 120.3869°, elevation 19 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).