Dumai weather in June
In June, Dumai sees average daytime highs of 32°C and overnight lows near 25°C, with 156 mm of rain across 21.3 wet days and about 12.1 hours of daylight. It is the 3rd-warmest and 11th-wettest month of the year here.
Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 6% of the time in June, and the air most often feels miserable.
Daylight stretches from about 12 h 06 min at the start of June to 12 h 06 min by month's end. Set against the rest of the year, June is Dumai's 2nd-clearest and 8th-windiest month. For the whole year in context, see Dumai's year-round climate.
- Daytime high
- 32°
- 3rd warmest
- Overnight low
- 25°
- 10th coldest
- Rainfall
- 156 mm
- 21.3 wet days
- Daylight
- 12 h 06 min
- 6:12 AM – 6:17 PM
- Cloud cover
- 79%
- 2nd clearest
- Wind
- 5 km/h
- 8th windiest
- Solar energy
- 4.88 kWh/m²
- Travel score
- 2.7
- out of 10
Dumai is city in Riau Province, Indonesia.
- Density
- 202/km²
- people per km²
- Founded
- 1999
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in June
Day-to-day highs hold fairly steady near 32°C through the month.
A typical June day in Dumai reaches about 32°C in the afternoon and slips back to 25°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 34°C. Set against its neighbours, June runs on par with May and on par with July.
| 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) | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
| 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 | 32 | 25 |
| 2 | 32 | 25 |
| 3 | 32 | 25 |
| 4 | 32 | 25 |
| 5 | 32 | 25 |
| 6 | 32 | 25 |
| 7 | 32 | 25 |
| 8 | 32 | 25 |
| 9 | 32 | 25 |
| 10 | 32 | 25 |
| 11 | 32 | 25 |
| 12 | 32 | 25 |
| 13 | 32 | 25 |
| 14 | 32 | 25 |
| 15 | 32 | 25 |
| 16 | 32 | 25 |
| 17 | 32 | 25 |
| 18 | 32 | 25 |
| 19 | 32 | 25 |
| 20 | 32 | 25 |
| 21 | 32 | 25 |
| 22 | 32 | 25 |
| 23 | 32 | 25 |
| 24 | 32 | 25 |
| 25 | 32 | 25 |
| 26 | 32 | 25 |
| 27 | 32 | 25 |
| 28 | 32 | 25 |
| 29 | 32 | 25 |
| 30 | 32 | 25 |
How June really feels in Dumai
Once humidity and wind are folded in, June 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 June is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Dumai weather by month
How June compares with the rest of the year at a glance. June is the 3rd-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 | 31° / 24° | 201 | 21.3 | 11.9 | 3.3 |
| Feb | 32° / 25° | 123 | 16.8 | 11.9 | 3.2 |
| Mar | 32° / 25° | 217 | 25.1 | 12 | 2.5 |
| Apr | 32° / 25° | 249 | 27.6 | 12 | 2.2 |
| May | 32° / 25° | 224 | 26.3 | 12.1 | 2.3 |
| Jun | 32° / 25° | 156 | 21.3 | 12.1 | 2.7 |
| Jul | 32° / 24° | 162 | 20.4 | 12.1 | 3.0 |
| Aug | 32° / 24° | 195 | 24 | 12.1 | 2.7 |
| Sep | 32° / 24° | 253 | 26.1 | 12 | 2.5 |
| Oct | 31° / 24° | 308 | 28.2 | 12 | 2.4 |
| Nov | 31° / 24° | 387 | 28.5 | 11.9 | 2.4 |
| Dec | 31° / 24° | 343 | 27.7 | 11.9 | 2.7 |
Cloud cover in June
The sky is clear or mostly clear about 6% of the time in June.
Beyond those clear spells, partly cloudy skies cover about 12% of June, with mostly cloudy or overcast conditions the remaining 82%.
| 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 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 18 | 18 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Cloudier (%) | 86 | 85 | 85 | 85 | 85 | 85 | 84 | 84 | 84 | 83 | 83 | 83 | 83 | 82 | 82 | 80 | 80 | 80 | 79 | 79 | 79 | 79 | 78 | 79 | 79 | 79 | 79 | 79 | 79 | 79 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 14 | 86 |
| 2 | 15 | 85 |
| 3 | 15 | 85 |
| 4 | 15 | 85 |
| 5 | 15 | 85 |
| 6 | 15 | 85 |
| 7 | 16 | 84 |
| 8 | 16 | 84 |
| 9 | 16 | 84 |
| 10 | 17 | 83 |
| 11 | 17 | 83 |
| 12 | 17 | 83 |
| 13 | 17 | 83 |
| 14 | 18 | 82 |
| 15 | 18 | 82 |
| 16 | 20 | 80 |
| 17 | 20 | 80 |
| 18 | 20 | 80 |
| 19 | 21 | 79 |
| 20 | 21 | 79 |
| 21 | 21 | 79 |
| 22 | 21 | 79 |
| 23 | 22 | 78 |
| 24 | 21 | 79 |
| 25 | 21 | 79 |
| 26 | 21 | 79 |
| 27 | 21 | 79 |
| 28 | 21 | 79 |
| 29 | 21 | 79 |
| 30 | 21 | 79 |
Chance of precipitation in June
Dumai gets around 156 mm of rain over 21.3 wet days in June. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 71% and peaks near 80% 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 (%) | 80 | 79 | 79 | 78 | 77 | 76 | 75 | 74 | 73 | 72 | 71 | 70 | 69 | 69 | 68 | 68 | 67 | 67 | 67 | 67 | 67 | 67 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 |
| Rain chance (%) | |
|---|---|
| 1 | 80 |
| 2 | 79 |
| 3 | 79 |
| 4 | 78 |
| 5 | 77 |
| 6 | 76 |
| 7 | 75 |
| 8 | 74 |
| 9 | 73 |
| 10 | 72 |
| 11 | 71 |
| 12 | 70 |
| 13 | 69 |
| 14 | 69 |
| 15 | 68 |
| 16 | 68 |
| 17 | 67 |
| 18 | 67 |
| 19 | 67 |
| 20 | 67 |
| 21 | 67 |
| 22 | 67 |
| 23 | 68 |
| 24 | 68 |
| 25 | 68 |
| 26 | 68 |
| 27 | 68 |
| 28 | 68 |
| 29 | 68 |
| 30 | 68 |
Humidity in June
Most of June feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, June lands in the miserable band about 96% 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 (%) | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 8 |
| Miserable (%) | 99 | 99 | 99 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 97 | 97 | 97 | 97 | 97 | 96 | 96 | 96 | 96 | 95 | 95 | 95 | 94 | 94 | 93 | 93 | 93 | 92 | 92 | 92 |
| Oppressive (%) | Miserable (%) | |
|---|---|---|
| 1 | 1 | 99 |
| 2 | 1 | 99 |
| 3 | 1 | 99 |
| 4 | 2 | 98 |
| 5 | 2 | 98 |
| 6 | 2 | 98 |
| 7 | 2 | 98 |
| 8 | 2 | 98 |
| 9 | 2 | 98 |
| 10 | 2 | 98 |
| 11 | 3 | 97 |
| 12 | 3 | 97 |
| 13 | 3 | 97 |
| 14 | 3 | 97 |
| 15 | 3 | 97 |
| 16 | 4 | 96 |
| 17 | 4 | 96 |
| 18 | 4 | 96 |
| 19 | 4 | 96 |
| 20 | 5 | 95 |
| 21 | 5 | 95 |
| 22 | 5 | 95 |
| 23 | 6 | 94 |
| 24 | 6 | 94 |
| 25 | 7 | 93 |
| 26 | 7 | 93 |
| 27 | 7 | 93 |
| 28 | 8 | 92 |
| 29 | 8 | 92 |
| 30 | 8 | 92 |
Wind in June
Winds average 5 km/h in June.
Across June, daily wind ranges from about 5 km/h on the calmest days to 6 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 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| 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 | 6 | calm |
| 22 | 6 | calm |
| 23 | 6 | calm |
| 24 | 6 | calm |
| 25 | 6 | calm |
| 26 | 6 | calm |
| 27 | 6 | calm |
| 28 | 6 | calm |
| 29 | 6 | calm |
| 30 | 6 | calm |
Sunrise & sunset in June
Daylight runs from about 12 h 06 min at the start of June to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 0 minutes over June. Sunrise moves from 6:09 AM to 6:15 AM, and sunset from 6:14 PM to 6:20 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) | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 |
| Sunrise (AM) | 6:09 | 6:09 | 6:09 | 6:09 | 6:10 | 6:10 | 6:10 | 6:10 | 6:10 | 6:10 | 6:11 | 6:11 | 6:11 | 6:11 | 6:11 | 6:12 | 6:12 | 6:12 | 6:12 | 6:12 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:14 | 6:14 | 6:14 | 6:14 | 6:15 |
| Sunset (PM) | 6:14 | 6:15 | 6:15 | 6:15 | 6:15 | 6:15 | 6:15 | 6:16 | 6:16 | 6:16 | 6:16 | 6:16 | 6:17 | 6:17 | 6:17 | 6:17 | 6:18 | 6:18 | 6:18 | 6:18 | 6:18 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:20 | 6:20 | 6:20 | 6:20 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.1 | 6:09 | 6:14 |
| 2 | 12.1 | 6:09 | 6:15 |
| 3 | 12.1 | 6:09 | 6:15 |
| 4 | 12.1 | 6:09 | 6:15 |
| 5 | 12.1 | 6:10 | 6:15 |
| 6 | 12.1 | 6:10 | 6:15 |
| 7 | 12.1 | 6:10 | 6:15 |
| 8 | 12.1 | 6:10 | 6:16 |
| 9 | 12.1 | 6:10 | 6:16 |
| 10 | 12.1 | 6:10 | 6:16 |
| 11 | 12.1 | 6:11 | 6:16 |
| 12 | 12.1 | 6:11 | 6:16 |
| 13 | 12.1 | 6:11 | 6:17 |
| 14 | 12.1 | 6:11 | 6:17 |
| 15 | 12.1 | 6:11 | 6:17 |
| 16 | 12.1 | 6:12 | 6:17 |
| 17 | 12.1 | 6:12 | 6:18 |
| 18 | 12.1 | 6:12 | 6:18 |
| 19 | 12.1 | 6:12 | 6:18 |
| 20 | 12.1 | 6:12 | 6:18 |
| 21 | 12.1 | 6:13 | 6:18 |
| 22 | 12.1 | 6:13 | 6:19 |
| 23 | 12.1 | 6:13 | 6:19 |
| 24 | 12.1 | 6:13 | 6:19 |
| 25 | 12.1 | 6:13 | 6:19 |
| 26 | 12.1 | 6:14 | 6:19 |
| 27 | 12.1 | 6:14 | 6:20 |
| 28 | 12.1 | 6:14 | 6:20 |
| 29 | 12.1 | 6:14 | 6:20 |
| 30 | 12.1 | 6:15 | 6:20 |
Solar energy in June
Average shortwave solar energy reaching the ground each day in June, about 4.88 kWh/m².
For context, solar energy here swings from a low near 4.21 kWh/m² to a high of 5.49 kWh/m² in February across the year — June'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 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 |
| 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 | 4.9 | Bright |
| 13 | 4.9 | Bright |
| 14 | 4.9 | Bright |
| 15 | 4.9 | Bright |
| 16 | 4.9 | Bright |
| 17 | 4.9 | Bright |
| 18 | 4.9 | Bright |
| 19 | 4.9 | Bright |
| 20 | 4.9 | Bright |
| 21 | 4.9 | Bright |
| 22 | 4.9 | Bright |
| 23 | 4.9 | Bright |
| 24 | 4.9 | Bright |
| 25 | 4.9 | Bright |
| 26 | 4.9 | Bright |
| 27 | 4.9 | Bright |
| 28 | 4.9 | Bright |
| 29 | 4.9 | Bright |
| 30 | 4.9 | Bright |
Is June a good time to visit Dumai?
Our two travel scores rate June for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
June is a weaker month for outdoor sightseeing in Dumai.
What to pack for Dumai in June
From June's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In June, Dumai sees daytime highs around 32°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.
Sea temperature near Dumai in June
The nearest coast averages about 30°C in June — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 48 km away) is warmest in May at about 30°C and coldest in January 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 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 30 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 30 | Tropical |
| Nov | 29 | Tropical |
| Dec | 29 | Tropical |
UV index in Dumai in June
Clear-sky midday UV in June peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Dumai peaks around February 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 10 (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) | 13 | 14 | 13 | 13 | 12 | 10 | 10 | 12 | 13 | 14 | 11 | 11 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 14 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 10 | Very high |
| Jul | 10 | Extreme |
| Aug | 12 | Extreme |
| Sep | 13 | Extreme |
| Oct | 14 | Extreme |
| Nov | 11 | Extreme |
| Dec | 11 | Extreme |
Air quality in Dumai in June
Average fine-particle pollution (PM2.5) through the year — so you can see where June falls, not just the annual average.
Air quality in Dumai is worst in September — around 43 µg/m³ PM2.5 (poor), about 2.9× the cleanest month (December, 15 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) | 18 | 31 | 36 | 26 | 20 | 21 | 37 | 42 | 43 | 30 | 15 | 15 |
| Level | Moderate | Moderate | Poor | Moderate | Moderate | Moderate | Poor | Poor | Poor | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 18 | Moderate |
| Feb | 31 | Moderate |
| Mar | 36 | Poor |
| Apr | 26 | Moderate |
| May | 20 | Moderate |
| Jun | 21 | Moderate |
| Jul | 37 | Poor |
| Aug | 42 | Poor |
| Sep | 43 | Poor |
| Oct | 30 | Moderate |
| Nov | 15 | Moderate |
| Dec | 15 | Moderate |
Where is Dumai?
Dumai sits at 1.7°N, 101.4°E, 7 m above sea level, in Indonesia. The nearest listed city is Balai Pungut, 70 km away.
Topography around Dumai
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Dumai.
Within 3 km, the terrain around Dumai has only modest variations in elevation — a maximum elevation change of 27 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 53 m; within 80 km, only modest variations in elevation — a maximum elevation change of 77 m.
The land around Dumai is covered by artificial surfaces (51%) and trees (31%) within 3 km, trees (66%) and water (20%) within 16 km, and trees (64%) and water (29%) 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 Dumai (1.6671°, 101.4432°, elevation 7 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).