Tanjungbalai climate
Tanjungbalai (Indonesia) has a tropical rainforest climate (Köppen Af). The average temperature over the year is 27 °C81 °F, and about 2,627 mm103 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Tanjungbalai climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2882 | 2678 | 2780 | 1967.7 |
| Feb | 2984 | 2679 | 2781 | 1345.3 |
| Mar | 2984 | 2679 | 2882 | 1947.7 |
| Apr | 2984 | 2780 | 2882 | 1947.6 |
| May | 2984 | 2781 | 2883 | 2068.1 |
| Jun | 2984 | 2780 | 2882 | 1505.9 |
| Jul | 2984 | 2680 | 2882 | 1837.2 |
| Aug | 2984 | 2680 | 2882 | 2148.4 |
| Sep | 2983 | 2679 | 2781 | 25410 |
| Oct | 2883 | 2679 | 2781 | 31612 |
| Nov | 2882 | 2679 | 2781 | 29412 |
| Dec | 2882 | 2678 | 2780 | 29312 |
| Year | 2984 | 2678 | 2781 | 2,627103 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 83% | 88% | 4.5 | 11:58 |
| Feb | 81% | 81% | 4.9 | 12:01 |
| Mar | 82% | 82% | 5.2 | 12:06 |
| Apr | 83% | 88% | 5.0 | 12:11 |
| May | 83% | 88% | 4.9 | 12:15 |
| Jun | 82% | 84% | 4.9 | 12:18 |
| Jul | 82% | 85% | 4.9 | 12:17 |
| Aug | 82% | 88% | 4.9 | 12:13 |
| Sep | 82% | 91% | 4.8 | 12:08 |
| Oct | 84% | 94% | 4.5 | 12:03 |
| Nov | 85% | 94% | 4.4 | 11:59 |
| Dec | 85% | 92% | 4.3 | 11:57 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Tanjungbalai is like
The warmest month is May, with an average high of 29 °C84 °F and a low of 27 °C81 °F. The coldest is December, when highs average 28 °C82 °F and lows 26 °C78 °F. Temperatures barely change through the year: the warmest and the coolest month differ by only 1.2 °C2.2 °F.
It is very wet, receiving about 2,627 mm103 in of precipitation per year. The wettest three-month stretch is October–December, which brings 34% of the annual total. The wettest month is October (316 mm12 in), the driest is February (134 mm5.3 in).
Relative humidity ranges from 81% in February to 85% in November. The clearest skies (lowest average cloud amount, 81%) are typical of February. Average wind speed near the ground ranges from 5 km/h (3 mph) in April to 6 km/h (4 mph) in December.
Best time to visit Tanjungbalai
Based on these averages, the most comfortable months for sightseeing and outdoor activities are February: average highs of 29 °C84 °F to 29 °C84 °F with 134 mm5.3 in to 134 mm5.3 in of precipitation per month.
The most challenging month is October, which is very wet (316 mm12 in) and humid (84% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Tanjungbalai
- Wetter months (September–December) — highs 2882 to 29 °C83 °F, lows around 26 °C78 °F, about 289 mm11 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
- Drier months (January–August) — highs 2882 to 29 °C84 °F, lows 2678 to 27 °C81 °F, about 184 mm7.2 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
How Tanjungbalai compares
Compared with Pematangsiantar, about 81 km to the west, Tanjungbalai is on average 3.1 °C5.5 °F warmer and receives a similar amount of precipitation. The difference is largest in December (3.1 °C5.6 °F warmer).
Of the 110 places in Indonesia covered by World Climates, Tanjungbalai is the 36th warmest by annual mean temperature and the 26th wettest by annual precipitation. See all of them on the Indonesia climate page.
Places in other countries with the most similar temperature and rainfall pattern: Teluk Intan (Malaysia, Af), Kampung Baru Subang (Malaysia, Af) and Taiping (Malaysia, Af).
Nearby places
- Pematangsiantar 81 km · 24 °C76 °F · 2,724 mm107 in
- Tebingtinggi 81 km · 28 °C82 °F · 2,334 mm92 in
- Rantauprapat 96 km · 26 °C79 °F · 3,879 mm153 in
- Medan 143 km · 27 °C80 °F · 2,276 mm90 in
- Belawan 153 km · 28 °C82 °F · 2,477 mm98 in
- Sitiawan 171 km · 28 °C82 °F · 2,519 mm99 in
- Teluk Intan 179 km · 27 °C81 °F · 2,564 mm101 in
- Padangsidempuan 186 km · 25 °C77 °F · 4,346 mm171 in
Frequently asked questions
What is the warmest month in Tanjungbalai?
May is the warmest month in Tanjungbalai, with an average high of 29 °C (84 °F) and an average low of 27 °C (81 °F).
What is the coldest month in Tanjungbalai?
December is the coldest month, with an average high of 28 °C (82 °F) and an average low of 26 °C (78 °F).
When does it rain the most in Tanjungbalai?
October is the wettest month with about 316 mm (12.4 in) of precipitation; February is the driest with about 134 mm (5.3 in).
What is the best time to visit Tanjungbalai?
Judging by long-term averages, the most comfortable months are February.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.