Sibolga weather in January
In January, Sibolga sees average daytime highs of 28°C and overnight lows near 24°C, with 338 mm of rain across 26.7 wet days and about 11.9 hours of daylight. It is the 6th-warmest and 6th-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 3% of the time in January, and the air most often feels oppressive.
Daylight stretches from about 11 h 54 min at the start of January to 11 h 54 min by month's end. Set against the rest of the year, January is Sibolga's 4th-clearest and 10th-windiest month. For the whole year in context, see Sibolga's year-round climate.
- Daytime high
- 28°
- 6th warmest
- Overnight low
- 24°
- 7th coldest
- Rainfall
- 338 mm
- 26.7 wet days
- Daylight
- 11 h 54 min
- 6:37 AM – 6:31 PM
- Cloud cover
- 85%
- 4th clearest
- Wind
- 4 km/h
- 10th windiest
- Solar energy
- 5.02 kWh/m²
- Travel score
- 3.5
- 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 January
Day-to-day highs hold fairly steady near 28°C through the month.
A typical January day in Sibolga reaches about 28°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 27°C and 30°C. Set against its neighbours, January runs on par with December and on par with February.
| 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 | 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 | 24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 24 |
| 2 | 28 | 24 |
| 3 | 28 | 24 |
| 4 | 28 | 24 |
| 5 | 28 | 24 |
| 6 | 28 | 24 |
| 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 | 29 | 24 |
| 30 | 29 | 24 |
| 31 | 29 | 24 |
How January really feels in Sibolga
Once humidity and wind are folded in, January 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.
January 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 January compares with the rest of the year at a glance. January is the 6th-warmest and 6th-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 January
The sky is clear or mostly clear about 3% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 8% of January, 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 11 | 11 | 12 | 12 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 |
| Cloudier (%) | 89 | 89 | 88 | 88 | 87 | 86 | 86 | 86 | 86 | 86 | 87 | 88 | 89 | 89 | 89 | 89 | 89 | 89 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 89 | 89 | 89 | 89 | 89 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 11 | 89 |
| 2 | 11 | 89 |
| 3 | 12 | 88 |
| 4 | 12 | 88 |
| 5 | 13 | 87 |
| 6 | 14 | 86 |
| 7 | 14 | 86 |
| 8 | 14 | 86 |
| 9 | 14 | 86 |
| 10 | 14 | 86 |
| 11 | 13 | 87 |
| 12 | 12 | 88 |
| 13 | 11 | 89 |
| 14 | 11 | 89 |
| 15 | 11 | 89 |
| 16 | 11 | 89 |
| 17 | 11 | 89 |
| 18 | 11 | 89 |
| 19 | 10 | 90 |
| 20 | 10 | 90 |
| 21 | 10 | 90 |
| 22 | 10 | 90 |
| 23 | 10 | 90 |
| 24 | 10 | 90 |
| 25 | 10 | 90 |
| 26 | 10 | 90 |
| 27 | 11 | 89 |
| 28 | 11 | 89 |
| 29 | 11 | 89 |
| 30 | 11 | 89 |
| 31 | 11 | 89 |
Chance of precipitation in January
Sibolga gets around 338 mm of rain over 26.7 wet days in January. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 86% and peaks near 88% 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 85 | 85 | 85 | 84 | 84 | 85 | 85 | 85 | 86 | 86 | 87 | 87 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 87 | 87 | 87 | 86 | 86 | 86 | 85 | 85 | 85 | 85 |
| Rain chance (%) | |
|---|---|
| 1 | 85 |
| 2 | 85 |
| 3 | 85 |
| 4 | 84 |
| 5 | 84 |
| 6 | 85 |
| 7 | 85 |
| 8 | 85 |
| 9 | 86 |
| 10 | 86 |
| 11 | 87 |
| 12 | 87 |
| 13 | 88 |
| 14 | 88 |
| 15 | 88 |
| 16 | 88 |
| 17 | 88 |
| 18 | 88 |
| 19 | 88 |
| 20 | 88 |
| 21 | 88 |
| 22 | 87 |
| 23 | 87 |
| 24 | 87 |
| 25 | 86 |
| 26 | 86 |
| 27 | 86 |
| 28 | 85 |
| 29 | 85 |
| 30 | 85 |
| 31 | 85 |
Humidity in January
Most of January feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the oppressive band about 95% 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 (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Oppressive (%) | 96 | 96 | 96 | 96 | 95 | 95 | 95 | 95 | 95 | 95 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 95 | 95 | 95 | 95 | 95 | 96 | 96 | 96 | 96 | 96 | 96 | 96 | 96 |
| Miserable (%) | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|
| 1 | 1 | 96 | 3 |
| 2 | 1 | 96 | 3 |
| 3 | 1 | 96 | 3 |
| 4 | 1 | 96 | 3 |
| 5 | 1 | 95 | 4 |
| 6 | 1 | 95 | 4 |
| 7 | 1 | 95 | 4 |
| 8 | 1 | 95 | 4 |
| 9 | 1 | 95 | 4 |
| 10 | 1 | 95 | 4 |
| 11 | 1 | 94 | 5 |
| 12 | 1 | 94 | 5 |
| 13 | 1 | 94 | 5 |
| 14 | 1 | 94 | 5 |
| 15 | 1 | 94 | 5 |
| 16 | 1 | 94 | 5 |
| 17 | 1 | 94 | 5 |
| 18 | 1 | 94 | 5 |
| 19 | 1 | 95 | 4 |
| 20 | 1 | 95 | 4 |
| 21 | 1 | 95 | 4 |
| 22 | 1 | 95 | 4 |
| 23 | 1 | 95 | 4 |
| 24 | 1 | 96 | 3 |
| 25 | 1 | 96 | 3 |
| 26 | 1 | 96 | 3 |
| 27 | 1 | 96 | 3 |
| 28 | 1 | 96 | 3 |
| 29 | 1 | 96 | 3 |
| 30 | 1 | 96 | 3 |
| 31 | 1 | 96 | 3 |
Wind in January
Winds average 4 km/h in January.
Across January, daily wind ranges from about 4 km/h on the calmest days to 4 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) | 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 | 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 | 4 | calm |
| 2 | 4 | calm |
| 3 | 4 | calm |
| 4 | 4 | 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 January
Daylight runs from about 11 h 54 min at the start of January 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 January. Sunrise moves from 6:31 AM to 6:40 AM, and sunset from 6:25 PM to 6:36 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) | 6:31 | 6:31 | 6:32 | 6:32 | 6:33 | 6:33 | 6:34 | 6:34 | 6:34 | 6:35 | 6:35 | 6:35 | 6:36 | 6:36 | 6:37 | 6:37 | 6:37 | 6:38 | 6:38 | 6:38 | 6:38 | 6:39 | 6:39 | 6:39 | 6:39 | 6:40 | 6:40 | 6:40 | 6:40 | 6:40 | 6:40 |
| Sunset (PM) | 6:25 | 6:26 | 6:26 | 6:26 | 6:27 | 6:27 | 6:28 | 6:28 | 6:29 | 6:29 | 6:29 | 6:30 | 6:30 | 6:31 | 6:31 | 6:31 | 6:32 | 6:32 | 6:33 | 6:33 | 6:33 | 6:34 | 6:34 | 6:34 | 6:34 | 6:35 | 6:35 | 6:35 | 6:35 | 6:36 | 6:36 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.9 | 6:31 | 6:25 |
| 2 | 11.9 | 6:31 | 6:26 |
| 3 | 11.9 | 6:32 | 6:26 |
| 4 | 11.9 | 6:32 | 6:26 |
| 5 | 11.9 | 6:33 | 6:27 |
| 6 | 11.9 | 6:33 | 6:27 |
| 7 | 11.9 | 6:34 | 6:28 |
| 8 | 11.9 | 6:34 | 6:28 |
| 9 | 11.9 | 6:34 | 6:29 |
| 10 | 11.9 | 6:35 | 6:29 |
| 11 | 11.9 | 6:35 | 6:29 |
| 12 | 11.9 | 6:35 | 6:30 |
| 13 | 11.9 | 6:36 | 6:30 |
| 14 | 11.9 | 6:36 | 6:31 |
| 15 | 11.9 | 6:37 | 6:31 |
| 16 | 11.9 | 6:37 | 6:31 |
| 17 | 11.9 | 6:37 | 6:32 |
| 18 | 11.9 | 6:38 | 6:32 |
| 19 | 11.9 | 6:38 | 6:33 |
| 20 | 11.9 | 6:38 | 6:33 |
| 21 | 11.9 | 6:38 | 6:33 |
| 22 | 11.9 | 6:39 | 6:34 |
| 23 | 11.9 | 6:39 | 6:34 |
| 24 | 11.9 | 6:39 | 6:34 |
| 25 | 11.9 | 6:39 | 6:34 |
| 26 | 11.9 | 6:40 | 6:35 |
| 27 | 11.9 | 6:40 | 6:35 |
| 28 | 11.9 | 6:40 | 6:35 |
| 29 | 11.9 | 6:40 | 6:35 |
| 30 | 11.9 | 6:40 | 6:36 |
| 31 | 11.9 | 6:40 | 6:36 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 5.02 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 — January's 5.02 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.7 | 4.7 | 4.8 | 4.8 | 4.8 | 4.8 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.1 | 5.1 | 5.1 | 5.1 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.3 | 5.3 |
| 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 | 4.7 | Bright |
| 2 | 4.7 | Bright |
| 3 | 4.8 | Bright |
| 4 | 4.8 | Bright |
| 5 | 4.8 | Bright |
| 6 | 4.8 | Bright |
| 7 | 4.9 | Bright |
| 8 | 4.9 | Bright |
| 9 | 4.9 | Bright |
| 10 | 4.9 | Bright |
| 11 | 4.9 | Bright |
| 12 | 4.9 | Bright |
| 13 | 5.0 | Bright |
| 14 | 5.0 | Bright |
| 15 | 5.0 | Bright |
| 16 | 5.0 | Bright |
| 17 | 5.0 | Bright |
| 18 | 5.0 | Bright |
| 19 | 5.0 | Bright |
| 20 | 5.0 | Bright |
| 21 | 5.1 | Bright |
| 22 | 5.1 | Bright |
| 23 | 5.1 | Bright |
| 24 | 5.1 | Bright |
| 25 | 5.2 | Bright |
| 26 | 5.2 | Bright |
| 27 | 5.2 | Bright |
| 28 | 5.2 | Bright |
| 29 | 5.2 | Bright |
| 30 | 5.3 | Bright |
| 31 | 5.3 | Bright |
Is January a good time to visit Sibolga?
Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
January is a weaker month for outdoor sightseeing in Sibolga.
What to pack for Sibolga in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Sibolga sees daytime highs around 28°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.
Sea temperature near Sibolga in January
The nearest coast averages about 29°C in January — 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 January
Clear-sky midday UV in January 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 January
Average fine-particle pollution (PM2.5) through the year — so you can see where January 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).