Sibolga weather in December
In December, Sibolga sees average daytime highs of 28°C and overnight lows near 24°C, with 433 mm of rain across 27.6 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 2nd-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 1% of the time in December, and the air most often feels oppressive.
Daylight stretches from about 11 h 54 min at the start of December to 11 h 54 min by month's end. Set against the rest of the year, December is Sibolga's 10th-clearest and 10th-windiest month. For the whole year in context, see Sibolga's year-round climate.
- Daytime high
- 28°
- 9th warmest
- Overnight low
- 24°
- 6th coldest
- Rainfall
- 433 mm
- 27.6 wet days
- Daylight
- 11 h 54 min
- 6:24 AM – 6:18 PM
- Cloud cover
- 92%
- 10th clearest
- Wind
- 4 km/h
- 10th windiest
- Solar energy
- 4.3 kWh/m²
- Travel score
- 3.6
- out of 10
Sibolga is city in North Sumatra Province, Indonesia.
- Density
- 8,565/km²
- people per km²
- Founded
- 1700
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Day-to-day highs hold fairly steady near 28°C through the month.
A typical December day in Sibolga reaches about 28°C in the afternoon and slips back to 24°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 29°C. Set against its neighbours, December runs on par with November and on par with January.
| 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) | 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 | 28 |
| Avg low (°C) | 23 | 23 | 23 | 23 | 23 | 23 | 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 | 28 | 23 |
| 2 | 28 | 23 |
| 3 | 28 | 23 |
| 4 | 28 | 23 |
| 5 | 28 | 23 |
| 6 | 28 | 23 |
| 7 | 28 | 24 |
| 8 | 28 | 24 |
| 9 | 28 | 24 |
| 10 | 28 | 24 |
| 11 | 28 | 24 |
| 12 | 28 | 24 |
| 13 | 28 | 24 |
| 14 | 28 | 24 |
| 15 | 28 | 24 |
| 16 | 28 | 24 |
| 17 | 28 | 24 |
| 18 | 28 | 24 |
| 19 | 28 | 24 |
| 20 | 28 | 24 |
| 21 | 28 | 24 |
| 22 | 28 | 24 |
| 23 | 28 | 24 |
| 24 | 28 | 24 |
| 25 | 28 | 24 |
| 26 | 28 | 24 |
| 27 | 28 | 24 |
| 28 | 28 | 24 |
| 29 | 28 | 24 |
| 30 | 28 | 24 |
| 31 | 28 | 24 |
How December really feels in Sibolga
Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Sibolga weather by month
How December compares with the rest of the year at a glance. December is the 9th-warmest and 2nd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 28° / 24° | 338 | 26.7 | 11.9 | 3.5 |
| Feb | 29° / 24° | 311 | 23.7 | 11.9 | 3.4 |
| Mar | 29° / 24° | 361 | 27.4 | 12 | 3.2 |
| Apr | 29° / 24° | 357 | 26.7 | 12 | 3.2 |
| May | 29° / 24° | 260 | 21.6 | 12.1 | 3.9 |
| Jun | 29° / 24° | 159 | 17.3 | 12.1 | 4.4 |
| Jul | 28° / 24° | 193 | 19.1 | 12.1 | 4.6 |
| Aug | 28° / 23° | 284 | 22.8 | 12.1 | 4.2 |
| Sep | 28° / 23° | 293 | 23.2 | 12 | 4.1 |
| Oct | 28° / 23° | 428 | 26.1 | 12 | 3.8 |
| Nov | 27° / 23° | 507 | 27.7 | 11.9 | 3.4 |
| Dec | 28° / 24° | 433 | 27.6 | 11.9 | 3.6 |
Cloud cover in December
The sky is clear or mostly clear about 1% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 3% of December, with mostly cloudy or overcast conditions the remaining 96%.
| 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 (%) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 5 | 5 | 6 | 7 | 8 | 8 |
| Cloudier (%) | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 98 | 98 | 98 | 98 | 97 | 97 | 96 | 96 | 95 | 95 | 95 | 94 | 93 | 92 | 92 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 3 | 97 |
| 2 | 3 | 97 |
| 3 | 3 | 97 |
| 4 | 3 | 97 |
| 5 | 3 | 97 |
| 6 | 3 | 97 |
| 7 | 3 | 97 |
| 8 | 3 | 97 |
| 9 | 3 | 97 |
| 10 | 3 | 97 |
| 11 | 3 | 97 |
| 12 | 3 | 97 |
| 13 | 3 | 97 |
| 14 | 3 | 97 |
| 15 | 3 | 97 |
| 16 | 3 | 97 |
| 17 | 2 | 98 |
| 18 | 2 | 98 |
| 19 | 2 | 98 |
| 20 | 2 | 98 |
| 21 | 3 | 97 |
| 22 | 3 | 97 |
| 23 | 4 | 96 |
| 24 | 4 | 96 |
| 25 | 5 | 95 |
| 26 | 5 | 95 |
| 27 | 5 | 95 |
| 28 | 6 | 94 |
| 29 | 7 | 93 |
| 30 | 8 | 92 |
| 31 | 8 | 92 |
Chance of precipitation in December
Sibolga gets around 433 mm of rain over 27.6 wet days in December. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 89% and peaks near 93% 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 (%) | 93 | 93 | 93 | 93 | 92 | 91 | 91 | 90 | 89 | 89 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 89 | 89 | 89 | 89 | 88 | 88 | 88 | 87 | 87 | 86 | 86 |
| Rain chance (%) | |
|---|---|
| 1 | 93 |
| 2 | 93 |
| 3 | 93 |
| 4 | 93 |
| 5 | 92 |
| 6 | 91 |
| 7 | 91 |
| 8 | 90 |
| 9 | 89 |
| 10 | 89 |
| 11 | 88 |
| 12 | 88 |
| 13 | 88 |
| 14 | 88 |
| 15 | 88 |
| 16 | 88 |
| 17 | 88 |
| 18 | 88 |
| 19 | 88 |
| 20 | 88 |
| 21 | 89 |
| 22 | 89 |
| 23 | 89 |
| 24 | 89 |
| 25 | 88 |
| 26 | 88 |
| 27 | 88 |
| 28 | 87 |
| 29 | 87 |
| 30 | 86 |
| 31 | 86 |
Humidity in December
Most of December feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the oppressive 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Muggy (%) | 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 | 1 |
| Oppressive (%) | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 100 | 100 | 100 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 97 | 97 | 97 | 97 | 97 | 97 |
| Miserable (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
| Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|
| 1 | 0 | 99 | 1 |
| 2 | 0 | 99 | 1 |
| 3 | 0 | 99 | 1 |
| 4 | 0 | 99 | 1 |
| 5 | 0 | 99 | 1 |
| 6 | 0 | 99 | 1 |
| 7 | 0 | 99 | 1 |
| 8 | 0 | 99 | 1 |
| 9 | 0 | 99 | 1 |
| 10 | 0 | 99 | 1 |
| 11 | 0 | 99 | 1 |
| 12 | 0 | 100 | 0 |
| 13 | 0 | 100 | 0 |
| 14 | 0 | 100 | 0 |
| 15 | 0 | 99 | 1 |
| 16 | 0 | 99 | 1 |
| 17 | 0 | 99 | 1 |
| 18 | 0 | 99 | 1 |
| 19 | 0 | 99 | 1 |
| 20 | 0 | 99 | 1 |
| 21 | 0 | 99 | 1 |
| 22 | 0 | 99 | 1 |
| 23 | 0 | 99 | 1 |
| 24 | 0 | 99 | 1 |
| 25 | 0 | 99 | 1 |
| 26 | 1 | 97 | 2 |
| 27 | 1 | 97 | 2 |
| 28 | 1 | 97 | 2 |
| 29 | 1 | 97 | 2 |
| 30 | 1 | 97 | 2 |
| 31 | 1 | 97 | 2 |
Wind in December
Winds average 4 km/h in December.
Across December, daily wind ranges from about 4 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| 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 | 5 | calm |
| 2 | 5 | calm |
| 3 | 5 | calm |
| 4 | 5 | calm |
| 5 | 4 | calm |
| 6 | 4 | calm |
| 7 | 4 | calm |
| 8 | 4 | calm |
| 9 | 4 | calm |
| 10 | 4 | calm |
| 11 | 4 | calm |
| 12 | 4 | calm |
| 13 | 4 | calm |
| 14 | 4 | calm |
| 15 | 4 | calm |
| 16 | 4 | calm |
| 17 | 4 | calm |
| 18 | 4 | calm |
| 19 | 4 | calm |
| 20 | 4 | calm |
| 21 | 4 | calm |
| 22 | 4 | calm |
| 23 | 4 | calm |
| 24 | 4 | calm |
| 25 | 4 | calm |
| 26 | 4 | calm |
| 27 | 4 | calm |
| 28 | 4 | calm |
| 29 | 4 | calm |
| 30 | 4 | calm |
| 31 | 4 | calm |
Sunrise & sunset in December
Daylight runs from about 11 h 54 min at the start of December to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 0 minutes over December. Sunrise moves from 6:17 AM to 6:31 AM, and sunset from 6:12 PM to 6:25 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) | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 |
| Sunrise (AM) | 6:17 | 6:18 | 6:18 | 6:19 | 6:19 | 6:20 | 6:20 | 6:20 | 6:21 | 6:21 | 6:22 | 6:22 | 6:23 | 6:23 | 6:24 | 6:24 | 6:25 | 6:25 | 6:25 | 6:26 | 6:26 | 6:27 | 6:27 | 6:28 | 6:28 | 6:29 | 6:29 | 6:30 | 6:30 | 6:31 | 6:31 |
| Sunset (PM) | 6:12 | 6:12 | 6:13 | 6:13 | 6:13 | 6:14 | 6:14 | 6:15 | 6:15 | 6:15 | 6:16 | 6:16 | 6:17 | 6:17 | 6:18 | 6:18 | 6:18 | 6:19 | 6:19 | 6:20 | 6:20 | 6:21 | 6:21 | 6:22 | 6:22 | 6:23 | 6:23 | 6:24 | 6:24 | 6:25 | 6:25 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.9 | 6:17 | 6:12 |
| 2 | 11.9 | 6:18 | 6:12 |
| 3 | 11.9 | 6:18 | 6:13 |
| 4 | 11.9 | 6:19 | 6:13 |
| 5 | 11.9 | 6:19 | 6:13 |
| 6 | 11.9 | 6:20 | 6:14 |
| 7 | 11.9 | 6:20 | 6:14 |
| 8 | 11.9 | 6:20 | 6:15 |
| 9 | 11.9 | 6:21 | 6:15 |
| 10 | 11.9 | 6:21 | 6:15 |
| 11 | 11.9 | 6:22 | 6:16 |
| 12 | 11.9 | 6:22 | 6:16 |
| 13 | 11.9 | 6:23 | 6:17 |
| 14 | 11.9 | 6:23 | 6:17 |
| 15 | 11.9 | 6:24 | 6:18 |
| 16 | 11.9 | 6:24 | 6:18 |
| 17 | 11.9 | 6:25 | 6:18 |
| 18 | 11.9 | 6:25 | 6:19 |
| 19 | 11.9 | 6:25 | 6:19 |
| 20 | 11.9 | 6:26 | 6:20 |
| 21 | 11.9 | 6:26 | 6:20 |
| 22 | 11.9 | 6:27 | 6:21 |
| 23 | 11.9 | 6:27 | 6:21 |
| 24 | 11.9 | 6:28 | 6:22 |
| 25 | 11.9 | 6:28 | 6:22 |
| 26 | 11.9 | 6:29 | 6:23 |
| 27 | 11.9 | 6:29 | 6:23 |
| 28 | 11.9 | 6:30 | 6:24 |
| 29 | 11.9 | 6:30 | 6:24 |
| 30 | 11.9 | 6:31 | 6:25 |
| 31 | 11.9 | 6:31 | 6:25 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 4.3 kWh/m².
For context, solar energy here swings from a low near 4.11 kWh/m² to a high of 5.45 kWh/m² in February across the year — December's 4.3 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.5 | 4.5 | 4.5 | 4.5 | 4.6 | 4.6 | 4.7 |
| 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 | 4.2 | Bright |
| 2 | 4.2 | Bright |
| 3 | 4.2 | Bright |
| 4 | 4.2 | Bright |
| 5 | 4.2 | Bright |
| 6 | 4.2 | Bright |
| 7 | 4.2 | Bright |
| 8 | 4.2 | Bright |
| 9 | 4.3 | Bright |
| 10 | 4.3 | Bright |
| 11 | 4.3 | Bright |
| 12 | 4.3 | Bright |
| 13 | 4.3 | Bright |
| 14 | 4.3 | Bright |
| 15 | 4.3 | Bright |
| 16 | 4.3 | Bright |
| 17 | 4.3 | Bright |
| 18 | 4.3 | Bright |
| 19 | 4.4 | Bright |
| 20 | 4.4 | Bright |
| 21 | 4.4 | Bright |
| 22 | 4.4 | Bright |
| 23 | 4.4 | Bright |
| 24 | 4.4 | Bright |
| 25 | 4.5 | Bright |
| 26 | 4.5 | Bright |
| 27 | 4.5 | Bright |
| 28 | 4.5 | Bright |
| 29 | 4.6 | Bright |
| 30 | 4.6 | Bright |
| 31 | 4.7 | Bright |
Is December a good time to visit Sibolga?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a weaker month for outdoor sightseeing in Sibolga.
What to pack for Sibolga in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Sibolga sees daytime highs around 28°C and nights near 24°C. Pack light clothes and rain gear. About 28 days see rain.
Sea temperature near Sibolga in December
The nearest coast averages about 29°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 22 km away) is warmest in March at about 30°C and coldest in November 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) | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 30 | Tropical |
| Mar | 30 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 30 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 29 | Tropical |
UV index in Sibolga in December
Clear-sky midday UV in December 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 Sibolga peaks around February 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 11 at about 10 (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) | 12 | 14 | 13 | 13 | 11 | 11 | 11 | 10 | 14 | 14 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 12 | Extreme |
| Feb | 14 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 11 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 10 | Extreme |
| Sep | 14 | Extreme |
| Oct | 14 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Air quality in Sibolga in December
Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.
Air quality in Sibolga is worst in October — around 20 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 12 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 | 18 | 17 | 15 | 15 | 14 | 15 | 14 | 19 | 20 | 12 | 12 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 18 | Moderate |
| Mar | 17 | Moderate |
| Apr | 15 | Moderate |
| May | 15 | Moderate |
| Jun | 14 | Moderate |
| Jul | 15 | Moderate |
| Aug | 14 | Moderate |
| Sep | 19 | Moderate |
| Oct | 20 | Moderate |
| Nov | 12 | Moderate |
| Dec | 12 | Moderate |
Where is Sibolga?
Sibolga sits at 1.7°N, 98.8°E, 6 m above sea level, in Indonesia. The nearest listed city is Tarutung, 37 km away.
Topography around Sibolga
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sibolga.
Within 3 km, the terrain around Sibolga has significant variations in elevation — a maximum elevation change of 471 m around an average of 77 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,065 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,230 m.
The land around Sibolga is covered by trees (44%) and water (41%) within 3 km, trees (59%) and water (35%) within 16 km, and trees (58%) and water (36%) 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 Sibolga (1.7402°, 98.7812°, elevation 6 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).