Poso weather in September
In September, Poso sees average daytime highs of 28°C and overnight lows near 20°C, with 165 mm of rain across 17.6 wet days and about 12 hours of daylight. It is the 1st-warmest and 11th-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 15% of the time in September, and the air most often feels muggy.
Daylight stretches from about 12 hours at the start of September to 12 hours by month's end. Set against the rest of the year, September is Poso's 1st-clearest and 3rd-windiest month. For the whole year in context, see Poso's year-round climate.
- Daytime high
- 28°
- 1st warmest
- Overnight low
- 20°
- 3rd coldest
- Rainfall
- 165 mm
- 17.6 wet days
- Daylight
- 12 hours
- 5:52 AM – 5:51 PM
- Cloud cover
- 67%
- 1st clearest
- Wind
- 5 km/h
- 3rd windiest
- Solar energy
- 5.79 kWh/m²
- Travel score
- 4.7
- out of 10
Poso is administrative seat of Poso Regency.
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 Poso reaches about 28°C in the afternoon and slips back to 20°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°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 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 20 |
| 2 | 28 | 20 |
| 3 | 28 | 20 |
| 4 | 28 | 20 |
| 5 | 28 | 20 |
| 6 | 28 | 20 |
| 7 | 28 | 20 |
| 8 | 28 | 20 |
| 9 | 28 | 20 |
| 10 | 28 | 20 |
| 11 | 28 | 20 |
| 12 | 28 | 20 |
| 13 | 28 | 20 |
| 14 | 28 | 20 |
| 15 | 28 | 20 |
| 16 | 28 | 20 |
| 17 | 28 | 20 |
| 18 | 28 | 20 |
| 19 | 28 | 20 |
| 20 | 28 | 20 |
| 21 | 28 | 20 |
| 22 | 28 | 20 |
| 23 | 28 | 20 |
| 24 | 28 | 21 |
| 25 | 28 | 21 |
| 26 | 28 | 21 |
| 27 | 28 | 21 |
| 28 | 28 | 21 |
| 29 | 28 | 21 |
| 30 | 28 | 21 |
Poso weather by month
How September compares with the rest of the year at a glance. September is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 27° / 20° | 278 | 27.4 | 12.1 | 3.6 |
| Feb | 27° / 20° | 241 | 25 | 12 | 3.7 |
| Mar | 27° / 21° | 360 | 28.6 | 12 | 3.5 |
| Apr | 27° / 21° | 433 | 29.2 | 12 | 3.3 |
| May | 28° / 21° | 354 | 29.2 | 11.9 | 3.5 |
| Jun | 27° / 21° | 288 | 25.8 | 11.9 | 3.9 |
| Jul | 27° / 21° | 204 | 22.6 | 11.9 | 4.5 |
| Aug | 28° / 21° | 159 | 19.1 | 12 | 5.0 |
| Sep | 28° / 20° | 165 | 17.6 | 12 | 4.7 |
| Oct | 28° / 21° | 245 | 22.5 | 12 | 4.0 |
| Nov | 28° / 21° | 350 | 28.2 | 12.1 | 3.5 |
| Dec | 27° / 21° | 345 | 30.3 | 12.1 | 3.3 |
Cloud cover in September
The sky is clear or mostly clear about 15% of the time in September, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 65%. 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 38 | 39 | 38 | 39 | 38 | 38 | 37 | 37 | 37 | 37 | 36 | 36 | 35 | 35 | 34 | 34 | 34 | 34 | 33 | 33 | 34 | 34 | 34 | 33 | 32 | 32 | 32 | 31 | 31 | 29 |
| Cloudier (%) | 62 | 61 | 62 | 61 | 62 | 62 | 63 | 63 | 63 | 63 | 64 | 64 | 65 | 65 | 66 | 66 | 66 | 66 | 67 | 67 | 66 | 66 | 66 | 67 | 68 | 68 | 68 | 69 | 69 | 71 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 38 | 62 |
| 2 | 39 | 61 |
| 3 | 38 | 62 |
| 4 | 39 | 61 |
| 5 | 38 | 62 |
| 6 | 38 | 62 |
| 7 | 37 | 63 |
| 8 | 37 | 63 |
| 9 | 37 | 63 |
| 10 | 37 | 63 |
| 11 | 36 | 64 |
| 12 | 36 | 64 |
| 13 | 35 | 65 |
| 14 | 35 | 65 |
| 15 | 34 | 66 |
| 16 | 34 | 66 |
| 17 | 34 | 66 |
| 18 | 34 | 66 |
| 19 | 33 | 67 |
| 20 | 33 | 67 |
| 21 | 34 | 66 |
| 22 | 34 | 66 |
| 23 | 34 | 66 |
| 24 | 33 | 67 |
| 25 | 32 | 68 |
| 26 | 32 | 68 |
| 27 | 32 | 68 |
| 28 | 31 | 69 |
| 29 | 31 | 69 |
| 30 | 29 | 71 |
Chance of precipitation in September
Poso gets around 165 mm of rain over 17.6 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 59% and peaks near 64% on the wettest days.
| 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 (%) | 61 | 61 | 60 | 59 | 59 | 58 | 58 | 57 | 57 | 56 | 56 | 56 | 56 | 56 | 57 | 57 | 58 | 58 | 59 | 59 | 59 | 60 | 60 | 61 | 61 | 62 | 63 | 63 | 64 | 64 |
| Rain chance (%) | |
|---|---|
| 1 | 61 |
| 2 | 61 |
| 3 | 60 |
| 4 | 59 |
| 5 | 59 |
| 6 | 58 |
| 7 | 58 |
| 8 | 57 |
| 9 | 57 |
| 10 | 56 |
| 11 | 56 |
| 12 | 56 |
| 13 | 56 |
| 14 | 56 |
| 15 | 57 |
| 16 | 57 |
| 17 | 58 |
| 18 | 58 |
| 19 | 59 |
| 20 | 59 |
| 21 | 59 |
| 22 | 60 |
| 23 | 60 |
| 24 | 61 |
| 25 | 61 |
| 26 | 62 |
| 27 | 63 |
| 28 | 63 |
| 29 | 64 |
| 30 | 64 |
Humidity in September
Most of September feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the muggy band about 80% of days. Sticky, muggy-or-worse air turns up on roughly 87% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comfortable (%) | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 |
| Humid (%) | 11 | 11 | 11 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 10 | 10 | 9 | 9 | 9 | 8 | 8 | 8 |
| Muggy (%) | 85 | 85 | 85 | 84 | 83 | 82 | 81 | 81 | 81 | 81 | 80 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 80 | 80 | 81 | 80 | 81 | 80 | 80 | 80 | 80 | 78 |
| Oppressive (%) | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 11 | 11 | 12 |
| Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|
| 1 | 1 | 11 | 85 | 3 |
| 2 | 1 | 11 | 85 | 3 |
| 3 | 1 | 11 | 85 | 3 |
| 4 | 1 | 12 | 84 | 3 |
| 5 | 1 | 12 | 83 | 4 |
| 6 | 2 | 12 | 82 | 4 |
| 7 | 2 | 13 | 81 | 4 |
| 8 | 2 | 13 | 81 | 4 |
| 9 | 2 | 13 | 81 | 4 |
| 10 | 2 | 13 | 81 | 4 |
| 11 | 2 | 14 | 80 | 4 |
| 12 | 2 | 14 | 79 | 5 |
| 13 | 2 | 14 | 79 | 5 |
| 14 | 2 | 14 | 79 | 5 |
| 15 | 2 | 13 | 79 | 6 |
| 16 | 2 | 13 | 79 | 6 |
| 17 | 2 | 13 | 79 | 6 |
| 18 | 2 | 12 | 79 | 7 |
| 19 | 2 | 12 | 79 | 7 |
| 20 | 2 | 12 | 79 | 7 |
| 21 | 1 | 11 | 80 | 8 |
| 22 | 1 | 11 | 80 | 8 |
| 23 | 1 | 10 | 81 | 8 |
| 24 | 1 | 10 | 80 | 9 |
| 25 | 1 | 9 | 81 | 9 |
| 26 | 1 | 9 | 80 | 10 |
| 27 | 1 | 9 | 80 | 10 |
| 28 | 1 | 8 | 80 | 11 |
| 29 | 1 | 8 | 80 | 11 |
| 30 | 2 | 8 | 78 | 12 |
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 5 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 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| 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 | 5 | calm |
| 21 | 5 | calm |
| 22 | 5 | calm |
| 23 | 5 | calm |
| 24 | 5 | calm |
| 25 | 5 | calm |
| 26 | 5 | calm |
| 27 | 5 | calm |
| 28 | 5 | calm |
| 29 | 5 | calm |
| 30 | 5 | calm |
Sunrise & sunset in September
Daylight runs from about 12 hours at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 0 minutes over September. Sunrise moves from 5:58 AM to 5:46 AM, and sunset from 5:56 PM to 5:47 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) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunrise (AM) | 5:58 | 5:57 | 5:57 | 5:56 | 5:56 | 5:56 | 5:55 | 5:55 | 5:54 | 5:54 | 5:54 | 5:53 | 5:53 | 5:52 | 5:52 | 5:52 | 5:51 | 5:51 | 5:50 | 5:50 | 5:49 | 5:49 | 5:49 | 5:48 | 5:48 | 5:47 | 5:47 | 5:47 | 5:46 | 5:46 |
| Sunset (PM) | 5:56 | 5:56 | 5:55 | 5:55 | 5:55 | 5:54 | 5:54 | 5:54 | 5:53 | 5:53 | 5:53 | 5:52 | 5:52 | 5:52 | 5:51 | 5:51 | 5:51 | 5:50 | 5:50 | 5:50 | 5:49 | 5:49 | 5:49 | 5:48 | 5:48 | 5:48 | 5:48 | 5:47 | 5:47 | 5:47 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.0 | 5:58 | 5:56 |
| 2 | 12.0 | 5:57 | 5:56 |
| 3 | 12.0 | 5:57 | 5:55 |
| 4 | 12.0 | 5:56 | 5:55 |
| 5 | 12.0 | 5:56 | 5:55 |
| 6 | 12.0 | 5:56 | 5:54 |
| 7 | 12.0 | 5:55 | 5:54 |
| 8 | 12.0 | 5:55 | 5:54 |
| 9 | 12.0 | 5:54 | 5:53 |
| 10 | 12.0 | 5:54 | 5:53 |
| 11 | 12.0 | 5:54 | 5:53 |
| 12 | 12.0 | 5:53 | 5:52 |
| 13 | 12.0 | 5:53 | 5:52 |
| 14 | 12.0 | 5:52 | 5:52 |
| 15 | 12.0 | 5:52 | 5:51 |
| 16 | 12.0 | 5:52 | 5:51 |
| 17 | 12.0 | 5:51 | 5:51 |
| 18 | 12.0 | 5:51 | 5:50 |
| 19 | 12.0 | 5:50 | 5:50 |
| 20 | 12.0 | 5:50 | 5:50 |
| 21 | 12.0 | 5:49 | 5:49 |
| 22 | 12.0 | 5:49 | 5:49 |
| 23 | 12.0 | 5:49 | 5:49 |
| 24 | 12.0 | 5:48 | 5:48 |
| 25 | 12.0 | 5:48 | 5:48 |
| 26 | 12.0 | 5:47 | 5:48 |
| 27 | 12.0 | 5:47 | 5:48 |
| 28 | 12.0 | 5:47 | 5:47 |
| 29 | 12.0 | 5:46 | 5:47 |
| 30 | 12.0 | 5:46 | 5:47 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 5.79 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 4.3 kWh/m² to a high of 5.79 kWh/m² in September across the year — September's 5.79 kWh/m² sits near the top of that range.
| 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) | 5.5 | 5.6 | 5.6 | 5.6 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 |
| 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 | 5.5 | Bright |
| 2 | 5.6 | Bright |
| 3 | 5.6 | Bright |
| 4 | 5.6 | Bright |
| 5 | 5.7 | Bright |
| 6 | 5.7 | Bright |
| 7 | 5.7 | Bright |
| 8 | 5.7 | Bright |
| 9 | 5.7 | Bright |
| 10 | 5.7 | Bright |
| 11 | 5.8 | Bright |
| 12 | 5.8 | Bright |
| 13 | 5.8 | Bright |
| 14 | 5.8 | Bright |
| 15 | 5.8 | Bright |
| 16 | 5.8 | Bright |
| 17 | 5.8 | Bright |
| 18 | 5.8 | Bright |
| 19 | 5.8 | Bright |
| 20 | 5.8 | Bright |
| 21 | 5.8 | Bright |
| 22 | 5.8 | Bright |
| 23 | 5.8 | Bright |
| 24 | 5.8 | Bright |
| 25 | 5.8 | Bright |
| 26 | 5.8 | Bright |
| 27 | 5.8 | Bright |
| 28 | 5.8 | Bright |
| 29 | 5.8 | Bright |
| 30 | 5.8 | Bright |
Is September a good time to visit Poso?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is a reasonable time to visit Poso for sightseeing.
What to pack for Poso in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Poso sees daytime highs around 28°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.
Sea temperature near Poso 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 14 km away) is warmest in April at about 30°C and coldest in February near 29°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) | 30 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 30 | Tropical |
| Feb | 29 | Tropical |
| Mar | 30 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 30 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 30 | Tropical |
| Nov | 30 | Tropical |
| Dec | 30 | Tropical |
UV index in Poso 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 Poso peaks around February 19 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 11 (extreme).
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) | 15 | 16 | 15 | 14 | 13 | 11 | 12 | 13 | 13 | 14 | 13 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 16 | Extreme |
| Mar | 15 | Extreme |
| Apr | 14 | Extreme |
| May | 13 | Extreme |
| Jun | 11 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 13 | Extreme |
| Oct | 14 | Extreme |
| Nov | 13 | Extreme |
| Dec | 12 | Extreme |
Air quality in Poso 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 Poso is worst in October — around 17 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (February, 8 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) | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 14 | 17 | 12 | 9 |
| Level | Good | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 8 | Good |
| Mar | 8 | Good |
| Apr | 9 | Good |
| May | 9 | Good |
| Jun | 9 | Good |
| Jul | 9 | Good |
| Aug | 9 | Good |
| Sep | 14 | Moderate |
| Oct | 17 | Moderate |
| Nov | 12 | Good |
| Dec | 9 | Good |
Where is Poso?
Poso sits at 1.4°S, 120.8°E, 10 m above sea level, in Indonesia. The nearest listed city is Palu, 112 km away.
Topography around Poso
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Poso.
Within 3 km, the terrain around Poso has only modest variations in elevation — a maximum elevation change of 229 m around an average of 47 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 737 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,772 m.
The land around Poso is covered by trees (65%) and water (20%) within 3 km, trees (52%) and water (43%) within 16 km, and trees (65%) and water (30%) within 80 km.
Indonesia travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 29% of US
- price level, 2025
- GDP per capita
- $5,060
- 2025
- Happiness
- 5.6 / 10
- World Happiness, 2025
- Safe drinking water
- 30%
- of population, 2024
- Homicide rate
- 0.3
- per 100k, 2022
- Road deaths
- 11.3
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 471
- 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 Poso (-1.3959°, 120.7524°, elevation 10 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. 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).