Irosin weather in September
In September, Irosin sees average daytime highs of 30°C and overnight lows near 25°C, with 248 mm of rain across 26 wet days and about 12.1 hours of daylight. It is the 5th-warmest and 3rd-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 3% of the time in September, and the air most often feels miserable.
Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Irosin's 10th-clearest and 8th-windiest month. For the whole year in context, see Irosin's year-round climate.
- Daytime high
- 30°
- 5th warmest
- Overnight low
- 25°
- 9th coldest
- Rainfall
- 248 mm
- 26 wet days
- Daylight
- 12 h 06 min
- 5:36 AM – 5:40 PM
- Cloud cover
- 87%
- 10th clearest
- Wind
- 12 km/h
- 8th windiest
- Solar energy
- 4.87 kWh/m²
- Travel score
- 2.9
- out of 10
Irosin is municipality of the Philippines in the province of Sorsogon.
- Density
- 138/km²
- people per km²
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 Irosin reaches about 30°C in the afternoon and slips back to 25°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 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| 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 | 25 | 25 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 30 | 25 |
| 2 | 30 | 25 |
| 3 | 30 | 25 |
| 4 | 30 | 25 |
| 5 | 30 | 25 |
| 6 | 30 | 25 |
| 7 | 30 | 25 |
| 8 | 30 | 25 |
| 9 | 30 | 25 |
| 10 | 30 | 25 |
| 11 | 30 | 25 |
| 12 | 30 | 25 |
| 13 | 30 | 25 |
| 14 | 30 | 25 |
| 15 | 30 | 25 |
| 16 | 30 | 25 |
| 17 | 30 | 25 |
| 18 | 30 | 25 |
| 19 | 30 | 25 |
| 20 | 30 | 25 |
| 21 | 30 | 25 |
| 22 | 30 | 25 |
| 23 | 30 | 25 |
| 24 | 30 | 25 |
| 25 | 30 | 25 |
| 26 | 30 | 25 |
| 27 | 30 | 25 |
| 28 | 30 | 25 |
| 29 | 30 | 25 |
| 30 | 30 | 25 |
How September really feels in Irosin
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.
Irosin weather by month
How September compares with the rest of the year at a glance. September 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 | 28° / 24° | 172 | 20.4 | 11.3 | 4.8 |
| Feb | 28° / 24° | 107 | 15.7 | 11.6 | 5.0 |
| Mar | 29° / 24° | 90 | 15.6 | 11.9 | 4.9 |
| Apr | 30° / 25° | 59 | 12.2 | 12.3 | 4.7 |
| May | 31° / 26° | 128 | 18.8 | 12.6 | 3.6 |
| Jun | 31° / 26° | 191 | 24.4 | 12.7 | 2.9 |
| Jul | 30° / 25° | 284 | 27.6 | 12.7 | 2.8 |
| Aug | 30° / 26° | 222 | 25.2 | 12.4 | 3.1 |
| Sep | 30° / 25° | 248 | 26 | 12.1 | 2.9 |
| Oct | 30° / 25° | 218 | 26.3 | 11.7 | 3.1 |
| Nov | 29° / 25° | 188 | 24.2 | 11.4 | 3.5 |
| Dec | 28° / 25° | 248 | 23.5 | 11.3 | 4.0 |
Cloud cover in September
The sky is clear or mostly clear about 3% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 8% of September, with mostly cloudy or overcast conditions the remaining 89%.
| 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 (%) | 14 | 14 | 14 | 14 | 14 | 13 | 12 | 12 | 12 | 11 | 11 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 10 | 10 | 12 | 12 | 12 | 13 | 13 |
| Cloudier (%) | 86 | 86 | 86 | 86 | 86 | 87 | 88 | 88 | 88 | 89 | 89 | 91 | 91 | 92 | 92 | 92 | 92 | 92 | 92 | 91 | 91 | 90 | 90 | 90 | 90 | 88 | 88 | 88 | 87 | 87 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 14 | 86 |
| 2 | 14 | 86 |
| 3 | 14 | 86 |
| 4 | 14 | 86 |
| 5 | 14 | 86 |
| 6 | 13 | 87 |
| 7 | 12 | 88 |
| 8 | 12 | 88 |
| 9 | 12 | 88 |
| 10 | 11 | 89 |
| 11 | 11 | 89 |
| 12 | 9 | 91 |
| 13 | 9 | 91 |
| 14 | 8 | 92 |
| 15 | 8 | 92 |
| 16 | 8 | 92 |
| 17 | 8 | 92 |
| 18 | 8 | 92 |
| 19 | 8 | 92 |
| 20 | 9 | 91 |
| 21 | 9 | 91 |
| 22 | 10 | 90 |
| 23 | 10 | 90 |
| 24 | 10 | 90 |
| 25 | 10 | 90 |
| 26 | 12 | 88 |
| 27 | 12 | 88 |
| 28 | 12 | 88 |
| 29 | 13 | 87 |
| 30 | 13 | 87 |
Chance of precipitation in September
Irosin gets around 248 mm of rain over 26 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 87% and peaks near 89% on the wettest days. The odds climb 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 (%) | 82 | 82 | 83 | 83 | 83 | 84 | 85 | 85 | 86 | 86 | 86 | 87 | 87 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 89 | 89 | 89 | 89 | 89 | 89 |
| Rain chance (%) | |
|---|---|
| 1 | 82 |
| 2 | 82 |
| 3 | 83 |
| 4 | 83 |
| 5 | 83 |
| 6 | 84 |
| 7 | 85 |
| 8 | 85 |
| 9 | 86 |
| 10 | 86 |
| 11 | 86 |
| 12 | 87 |
| 13 | 87 |
| 14 | 88 |
| 15 | 88 |
| 16 | 88 |
| 17 | 88 |
| 18 | 88 |
| 19 | 88 |
| 20 | 88 |
| 21 | 88 |
| 22 | 88 |
| 23 | 88 |
| 24 | 88 |
| 25 | 89 |
| 26 | 89 |
| 27 | 89 |
| 28 | 89 |
| 29 | 89 |
| 30 | 89 |
Humidity in September
Most of September feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the miserable band about 99% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oppressive (%) | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Miserable (%) | 98 | 98 | 98 | 98 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 98 | 98 | 98 | 98 | 98 | 98 | 98 |
| Oppressive (%) | Miserable (%) | |
|---|---|---|
| 1 | 2 | 98 |
| 2 | 2 | 98 |
| 3 | 2 | 98 |
| 4 | 2 | 98 |
| 5 | 1 | 99 |
| 6 | 1 | 99 |
| 7 | 1 | 99 |
| 8 | 1 | 99 |
| 9 | 1 | 99 |
| 10 | 1 | 99 |
| 11 | 1 | 99 |
| 12 | 1 | 99 |
| 13 | 1 | 99 |
| 14 | 1 | 99 |
| 15 | 1 | 99 |
| 16 | 1 | 99 |
| 17 | 1 | 99 |
| 18 | 1 | 99 |
| 19 | 1 | 99 |
| 20 | 1 | 99 |
| 21 | 1 | 99 |
| 22 | 1 | 99 |
| 23 | 1 | 99 |
| 24 | 2 | 98 |
| 25 | 2 | 98 |
| 26 | 2 | 98 |
| 27 | 2 | 98 |
| 28 | 2 | 98 |
| 29 | 2 | 98 |
| 30 | 2 | 98 |
Wind in September
Winds average 12 km/h in September.
Across September, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 12 | calm |
| 2 | 12 | calm |
| 3 | 12 | calm |
| 4 | 12 | calm |
| 5 | 12 | calm |
| 6 | 12 | calm |
| 7 | 12 | calm |
| 8 | 12 | calm |
| 9 | 12 | calm |
| 10 | 12 | calm |
| 11 | 12 | light breeze |
| 12 | 12 | light breeze |
| 13 | 12 | light breeze |
| 14 | 12 | light breeze |
| 15 | 12 | light breeze |
| 16 | 12 | light breeze |
| 17 | 12 | light breeze |
| 18 | 12 | light breeze |
| 19 | 12 | calm |
| 20 | 12 | calm |
| 21 | 12 | calm |
| 22 | 12 | calm |
| 23 | 12 | calm |
| 24 | 11 | calm |
| 25 | 11 | calm |
| 26 | 11 | calm |
| 27 | 11 | calm |
| 28 | 11 | calm |
| 29 | 11 | calm |
| 30 | 11 | calm |
Sunrise & sunset in September
Daylight runs from about 12 h 12 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 18 minutes over September. Sunrise moves from 5:36 AM to 5:36 AM, and sunset from 5:51 PM to 5:30 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) | 12.2 | 12.2 | 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 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 |
| Sunrise (AM) | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 | 5:36 |
| Sunset (PM) | 5:51 | 5:50 | 5:50 | 5:49 | 5:48 | 5:48 | 5:47 | 5:46 | 5:45 | 5:45 | 5:44 | 5:43 | 5:42 | 5:42 | 5:41 | 5:40 | 5:40 | 5:39 | 5:38 | 5:37 | 5:37 | 5:36 | 5:35 | 5:34 | 5:34 | 5:33 | 5:32 | 5:32 | 5:31 | 5:30 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.2 | 5:36 | 5:51 |
| 2 | 12.2 | 5:36 | 5:50 |
| 3 | 12.2 | 5:36 | 5:50 |
| 4 | 12.2 | 5:36 | 5:49 |
| 5 | 12.2 | 5:36 | 5:48 |
| 6 | 12.2 | 5:36 | 5:48 |
| 7 | 12.2 | 5:36 | 5:47 |
| 8 | 12.2 | 5:36 | 5:46 |
| 9 | 12.2 | 5:36 | 5:45 |
| 10 | 12.1 | 5:36 | 5:45 |
| 11 | 12.1 | 5:36 | 5:44 |
| 12 | 12.1 | 5:36 | 5:43 |
| 13 | 12.1 | 5:36 | 5:42 |
| 14 | 12.1 | 5:36 | 5:42 |
| 15 | 12.1 | 5:36 | 5:41 |
| 16 | 12.1 | 5:36 | 5:40 |
| 17 | 12.1 | 5:36 | 5:40 |
| 18 | 12.0 | 5:36 | 5:39 |
| 19 | 12.0 | 5:36 | 5:38 |
| 20 | 12.0 | 5:36 | 5:37 |
| 21 | 12.0 | 5:36 | 5:37 |
| 22 | 12.0 | 5:36 | 5:36 |
| 23 | 12.0 | 5:36 | 5:35 |
| 24 | 12.0 | 5:36 | 5:34 |
| 25 | 12.0 | 5:36 | 5:34 |
| 26 | 11.9 | 5:36 | 5:33 |
| 27 | 11.9 | 5:36 | 5:32 |
| 28 | 11.9 | 5:36 | 5:32 |
| 29 | 11.9 | 5:36 | 5:31 |
| 30 | 11.9 | 5:36 | 5:30 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 4.87 kWh/m².
For context, solar energy here swings from a low near 4.02 kWh/m² to a high of 6.33 kWh/m² in April across the year — September's 4.87 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) | 5.1 | 5.1 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 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 |
| 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 | 5.1 | Bright |
| 2 | 5.1 | Bright |
| 3 | 5.0 | Bright |
| 4 | 5.0 | Bright |
| 5 | 5.0 | Bright |
| 6 | 5.0 | Bright |
| 7 | 5.0 | Bright |
| 8 | 5.0 | Bright |
| 9 | 5.0 | Bright |
| 10 | 4.9 | Bright |
| 11 | 4.9 | Bright |
| 12 | 4.9 | Bright |
| 13 | 4.9 | Bright |
| 14 | 4.9 | Bright |
| 15 | 4.8 | Bright |
| 16 | 4.8 | Bright |
| 17 | 4.8 | Bright |
| 18 | 4.8 | Bright |
| 19 | 4.8 | Bright |
| 20 | 4.8 | Bright |
| 21 | 4.8 | Bright |
| 22 | 4.8 | Bright |
| 23 | 4.8 | Bright |
| 24 | 4.8 | Bright |
| 25 | 4.8 | Bright |
| 26 | 4.8 | Bright |
| 27 | 4.8 | Bright |
| 28 | 4.8 | Bright |
| 29 | 4.8 | Bright |
| 30 | 4.8 | Bright |
Hazard calendar for Irosin
In September, Irosin sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Irosin sits in the Pacific typhoon belt; the season peaks July–October.
Is September a good time to visit Irosin?
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 Irosin.
What to pack for Irosin in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Irosin sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.
Sea temperature near Irosin 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 at the nearest coast (about 13 km away) is warmest in June at about 29°C and coldest in February near 26°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 | 26 | 27 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 27 |
| Comfort | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 26 | Warm |
| Mar | 27 | Warm |
| Apr | 28 | Warm |
| May | 29 | Tropical |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 27 | Warm |
UV index in Irosin in September
Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Irosin peaks around April 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 | 12 | 13 | 14 | 13 | 13 | 12 | 13 | 13 | 11 | 10 | 9 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Extreme |
| Feb | 12 | Extreme |
| Mar | 13 | Extreme |
| Apr | 14 | Extreme |
| May | 13 | Extreme |
| Jun | 13 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 13 | Extreme |
| Oct | 11 | Extreme |
| Nov | 10 | Very high |
| Dec | 9 | Very high |
Air quality in Irosin 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 Irosin is worst in July — around 20 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (April, 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) | 14 | 17 | 11 | 9 | 11 | 16 | 20 | 17 | 18 | 17 | 12 | 12 |
| Level | Moderate | Moderate | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 17 | Moderate |
| Mar | 11 | Good |
| Apr | 9 | Good |
| May | 11 | Good |
| Jun | 16 | Moderate |
| Jul | 20 | Moderate |
| Aug | 17 | Moderate |
| Sep | 18 | Moderate |
| Oct | 17 | Moderate |
| Nov | 12 | Good |
| Dec | 12 | Good |
Where is Irosin?
Irosin sits at 12.7°N, 124.0°E, 33 m above sea level, in Philippines. The nearest listed city is Bulan, 17 km away.
Topography around Irosin
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Irosin.
Within 3 km, the terrain around Irosin has significant variations in elevation — a maximum elevation change of 390 m around an average of 99 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,544 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,412 m.
The land around Irosin is covered by trees (69%) and cropland (27%) within 3 km, trees (77%) within 16 km, and water (63%) and trees (33%) 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 Irosin (12.7001°, 124.0322°, elevation 33 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).