Singapore vs Batam: which is sunnier?
🇸🇬 Singapore vs 🇮🇩 Indonesia · 29 km apart · long-term climate normals (NASA POWER, 2001–2020)
Batam is the sunnier overall: about 2,051 hours of sunshine a year to Singapore'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
| Singapore | Batam | |
|---|---|---|
| Sunshine hours / year | 1,839 | 2,051 |
| Sunniest month | February (71/100) | February (70/100) |
| Nov–Feb average score | 64/100 | 65/100 |
| Jun–Aug average score | 62/100 | 63/100 |
| Rain / year | 2,368 mm | 2,469 mm |
| Warmest sea | 32°C / 90°F | 32°C / 90°F |
| Peak midday UV | 10 (very high) | 11 (extreme) |
Singapore vs Batam month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Singapore | Batam | Singapore | Batam | Singapore | Batam | Singapore | Batam | |
| January | 62 | 63 | 28° | 28° | 235 | 241 | 28° | 29° |
| February | 71 | 70 | 29° | 28° | 102 | 111 | 29° | 30° |
| March | 62 | 63 | 30° | 29° | 168 | 174 | 30° | 30° |
| April | 62 | 63 | 30° | 29° | 193 | 203 | 31° | 32° |
| May | 62 | 63 | 30° | 30° | 199 | 211 | 32° | 32° |
| June | 62 | 63 | 30° | 29° | 164 | 179 | 31° | 31° |
| July | 62 | 63 | 29° | 29° | 174 | 179 | 30° | 30° |
| August | 62 | 63 | 29° | 29° | 173 | 166 | 30° | 30° |
| September | 62 | 63 | 29° | 29° | 167 | 176 | 30° | 31° |
| October | 62 | 63 | 30° | 29° | 210 | 215 | 31° | 31° |
| November | 62 | 63 | 29° | 28° | 283 | 300 | 31° | 31° |
| December | 62 | 63 | 28° | 28° | 300 | 314 | 30° | 30° |
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 — Singapore averages 64/100, Batam 65/100. Daytime highs are similar (29°C vs 28°C). See the winter sun ranking.
- March–May: too close to call — Singapore averages 62/100, Batam 63/100. Daytime highs are similar (30°C vs 29°C).
- June–August: too close to call — Singapore averages 62/100, Batam 63/100. Daytime highs are similar (29°C vs 29°C).
- September–October: too close to call — Singapore averages 62/100, Batam 63/100. Daytime highs are similar (30°C vs 29°C).
Sea temperature
Both seas peak at 32°C / 90°F. Swimmable water (21°C+): Singapore all year, Batam all year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Singapore weather by month · Batam weather by month · Best time to visit Indonesia.
More comparisons: Singapore vs Tanjung Pinang-Bintan Island · Singapore vs Johor Bahru · Batam vs Tanjung Pinang-Bintan Island · Batam vs Johor Bahru · all head-to-heads