Batam vs Johor Bahru: which is sunnier?
🇮🇩 Indonesia vs 🇲🇾 Malaysia · 76 km apart · long-term climate normals (NASA POWER, 2001–2020)
Batam is the sunnier overall: about 2,051 hours of sunshine a year to Johor Bahru's 1,839. Their Sunshine Scores are within 2 points of each other in every month of the year.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.


At a glance
| Batam | Johor Bahru | |
|---|---|---|
| Sunshine hours / year | 2,051 | 1,839 |
| Sunniest month | February (70/100) | February (71/100) |
| Nov–Feb average score | 65/100 | 64/100 |
| Jun–Aug average score | 63/100 | 62/100 |
| Rain / year | 2,469 mm | 2,368 mm |
| Peak midday UV | 11 (extreme) | 10 (very high) |
Batam vs Johor Bahru month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Batam | Johor Bahru | Batam | Johor Bahru | Batam | Johor Bahru | |
| January | 63 | 62 | 28° | 28° | 241 | 235 |
| February | 70 | 71 | 28° | 29° | 111 | 102 |
| March | 63 | 62 | 29° | 30° | 174 | 168 |
| April | 63 | 62 | 29° | 30° | 203 | 193 |
| May | 63 | 62 | 30° | 30° | 211 | 199 |
| June | 63 | 62 | 29° | 29° | 179 | 164 |
| July | 63 | 62 | 29° | 29° | 179 | 174 |
| August | 63 | 62 | 29° | 29° | 166 | 173 |
| September | 63 | 62 | 29° | 29° | 176 | 167 |
| October | 63 | 62 | 29° | 29° | 215 | 210 |
| November | 63 | 62 | 28° | 29° | 300 | 283 |
| December | 63 | 62 | 28° | 28° | 314 | 300 |
The sunnier month by month: Jan even · Feb even · Mar even · Apr even · May even · Jun even · Jul even · Aug even · Sep even · Oct even · Nov even · Dec even.
When to pick which
- November–February: too close to call — Batam averages 65/100, Johor Bahru 64/100. Daytime highs are similar (28°C vs 29°C). See the winter sun ranking.
- March–May: too close to call — Batam averages 63/100, Johor Bahru 62/100. Daytime highs are similar (29°C vs 30°C).
- June–August: too close to call — Batam averages 63/100, Johor Bahru 62/100. Daytime highs are similar (29°C vs 29°C).
- September–October: too close to call — Batam averages 63/100, Johor Bahru 62/100. Daytime highs are similar (29°C vs 29°C).
Full month-by-month guides: Batam weather by month · Johor Bahru weather by month · Best time to visit Indonesia · Best time to visit Malaysia.
More comparisons: Batam vs Singapore · Batam vs Tanjung Pinang-Bintan Island · Johor Bahru vs Singapore · Johor Bahru vs Kuala Lumpur · Johor Bahru vs Subang · all head-to-heads