AI-generatedBatam at a glance
- Best time
- Feb
- Warmest month
- May · 29°
- Warmest sea
- May · 30.0°
- Sunshine a year
- 2,070 h
- Rain a year
- 2,661 mm
- Climate
- Tropical
- Time zone
- UTC+7
- Elevation
- 38 m
Climate in Batam
Batam has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. May is the warmest month with average highs of 29 °C, while January is the coolest at 27 °C. With around 2,070 hours of sunshine a year, Batam is moderately sunny; February is the sunniest month with 7.0 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Fair
Best time to visit: February
Keep in mindFrequent rain
A typical day in October
- Morning, 08:00: about 27°
- Midday, 13:00: about 28°
- Afternoon, 16:00: about 28°
- Evening, 20:00: about 27°
- Night, 23:00: about 26°
05:4717:52
Warm enough for a T-shirt in the evening.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 05:34–06:14 · evening 17:25–18:05
- Blue hour
- Morning 05:26–05:34 · evening 18:05–18:13
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
What is the weather like in Batam in October?
In October, Batam is hot: daytime highs average 28 °C, and even at night it stays warm at around 26 °C. The sea averages 29.3 °C – almost as warm as a bath. Expect around 5 hours of sunshine a day. It is the rainy season: rain falls on about 26 days, totalling 251 mm. The air is often humid and muggy. All in all, October is a so-so month for a holiday in Batam.
More details for October
- Daylight
- 12 h 5 min05:47 – 17:52
- UV index
- 14 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 12 km/haverage daily peakAll months
- Cloud cover
- 85 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+7Asia/Jakarta
How the score comes together
- Temperatureweight 50 %85 %
- Sunshineweight 20 %33 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Sea temperature in Batam
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 28.8 – 29.9 °C
Swimming season: All year
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Batam ranges from 27.6 °C in January to 30.0 °C in May. At 20 °C and more, the sea is warm enough for swimming all year round.
From March to January the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in May, eight out of ten years were between 29.4 and 30.6 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 27.6° | 26.9° | 28.3° | warm |
| FebruaryFeb | 27.7° | 27.0° | 28.5° | warm |
| MarchMar | 28.5° | 27.9° | 29.2° | warm |
| AprilApr | 29.7° | 29.1° | 30.2° | very warm |
| MayMay | 30.0° | 29.4° | 30.6° | very warm |
| JuneJun | 29.8° | 29.4° | 30.2° | very warm |
| JulyJul | 29.4° | 28.9° | 29.8° | very warm |
| AugustAug | 29.1° | 28.9° | 29.6° | very warm |
| SeptemberSep | 29.1° | 28.7° | 29.5° | very warm |
| OctoberOct | 29.3° | 28.8° | 29.9° | very warm |
| NovemberNov | 29.4° | 28.9° | 30.0° | very warm |
| DecemberDec | 28.4° | 27.6° | 29.1° | warm |
Sunshine hours in Batam
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 5.0 of 12.1 hours of daylight in Batam, 41 % of the day.
Sunshine hours: measured at the weather station 25 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Batam
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 14 · extremeAvoid the midday sun; SPF 50+, covering clothes, hat and sunglasses.
The sun is strongest in September (UV 14).
Minutes until sunburn in October
- Very fair skin
- about 10 min
- Fair skin
- about 10 min
- Light brown skin
- about 15 min
- Olive skin
- about 20 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Rain in Batam: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Batam has about 26 rainy days with 251 mm of rain in total.
Wind and clouds in Batam
How breezy and how cloudy Batam is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Batam typically peaks at 12 km/h during the day: Beaufort 3, light breeze.
Breezy months for windsurfing and kiting
The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 85 % of the sky over Batam: mostly overcast, with about 5.0 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat and humidity in Batam
How often the day gets hot in Batam (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Batam has about 0 hot days, with an average daytime high of 28 °C: often muggy. The air feels warmer than the thermometer says: light, airy clothes and slow days help.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Batam
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Hot 24° and more
- muggy month (10+ muggy days)
HotOctober: nights around 26°. Hot nights: air conditioning makes sleeping much easier. Muggy on about 31 days (dew point 18 °C or more).
The coolest nights are in January (25°), the warmest in May (26°). Nights stay tropical all year (20 °C and more), so a room with air conditioning or at least a fan pays off. It is muggy (dew point 18 °C or more) on about 365 days a year, mostly all year round.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 57 | 27° | 25° | 27.6° | 5.8 h | 21 | 233 |
| FebruaryFeb | 63 | 28° | 25° | 27.7° | 7.0 h | 16 | 116 |
| MarchMar | 53 | 28° | 26° | 28.5° | 6.3 h | 23 | 203 |
| AprilApr | 51 | 29° | 26° | 29.7° | 6.1 h | 27 | 243 |
| MayMay | 49 | 29° | 26° | 30.0° | 6.0 h | 28 | 224 |
| JuneJun | 50 | 29° | 26° | 29.8° | 5.8 h | 25 | 191 |
| JulyJul | 53 | 28° | 26° | 29.4° | 6.1 h | 24 | 167 |
| AugustAug | 53 | 28° | 26° | 29.1° | 6.0 h | 25 | 188 |
| SeptemberSep | 51 | 28° | 26° | 29.1° | 5.4 h | 24 | 186 |
| OctoberOct | 49 | 28° | 26° | 29.3° | 5.0 h | 26 | 251 |
| NovemberNov | 50 | 28° | 25° | 29.4° | 4.4 h | 28 | 342 |
| DecemberDec | 52 | 27° | 25° | 28.4° | 4.3 h | 27 | 319 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
1.15° N, 104.02° E · 38 m · Asia/Jakarta
Best time to visit Batam
The best time to visit Batam is in February. The sea stays too cool for a classic beach holiday: even in May it only reaches 30.0 °C. The wettest month is November with 342 mm of precipitation.
Batam through the seasons
How the weather changes over the seasons, with averages for each.
Batam in spring
Mar – May
Fair
- 28–29 °C by day
- Sea 29 °C
- 6 h of sun a day
- 78 rainy days in all
Batam in summer
Jun – Aug
Fair
- 28–29 °C by day
- Sea 29 °C
- 6 h of sun a day
- 74 rainy days in all
Batam in autumn
Sep – Nov
Fair
- 28 °C by day
- Sea 29 °C
- 5 h of sun a day
- 79 rainy days in all
Batam in winter
Dec – Feb
Fair
- 27–28 °C by day
- Sea 28 °C
- 6 h of sun a day
- 64 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Batam for you.
Your best months: January – February, August
Based on the climate averages; tap a month to see its details.
Compare two months in Batam
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
February has the better holiday weather in Batam: score 63 against 49. Daytime highs are about the same. The sea is 2 °C cooler in February. February has 10 fewer rainy days. The sun shines 2 hours longer a day in February.
| Month | October | February |
|---|---|---|
| Weather score | 49 | 63better |
| Day high | 28° | 28° |
| Night low | 26° | 25° |
| Sea | 29.3° | 27.7° |
| Sunshine | 5.0 h | 7.0 hbetter |
| Rainy days | 26 | 16better |
| Rainfall | 251 mm | 116 mmbetter |
| Muggy days | 31 | 28better |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
No month
15–28 °C and not too much rain
Rainy months
All year
12 or more rainy days
Batam month by month
The typical weather for every month at a glance.
57January27° · Sea 28° · 6 h
In January, Batam is hot: daytime highs average 27 °C, and even at night it stays warm at around 25 °C. The sea averages 27.6 °C – lovely and warm for swimming. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 21 days, totalling 233 mm. The air is often humid and muggy. All in all, January is a so-so month for a holiday in Batam.
Batam in January63February28° · Sea 28° · 7 h
In February, Batam is hot: daytime highs average 28 °C, and even at night it stays warm at around 25 °C. The sea averages 27.7 °C – lovely and warm for swimming. The sun shines for around 7 hours a day. It is the rainy season: rain falls on about 16 days, totalling 116 mm. The air is often humid and muggy. All in all, February is a good month for a holiday in Batam.
Batam in February53March28° · Sea 29° · 6 h
In March, Batam is hot: daytime highs average 28 °C, and even at night it stays warm at around 26 °C. The sea averages 28.5 °C – lovely and warm for swimming. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 23 days, totalling 203 mm. The air is often humid and muggy. All in all, March is a so-so month for a holiday in Batam.
Batam in March51April29° · Sea 30° · 6 h
In April, Batam is hot: daytime highs average 29 °C, and even at night it stays warm at around 26 °C. The sea averages 29.7 °C – almost as warm as a bath. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 27 days, totalling 243 mm. The air is often humid and muggy. All in all, April is a so-so month for a holiday in Batam.
Batam in April49May29° · Sea 30° · 6 h
In May, Batam is hot: daytime highs average 29 °C, and even at night it stays warm at around 26 °C. The sea averages 30.0 °C – almost as warm as a bath. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 224 mm. The air is often humid and muggy. All in all, May is a so-so month for a holiday in Batam.
Batam in May50June29° · Sea 30° · 6 h
In June, Batam is hot: daytime highs average 29 °C, and even at night it stays warm at around 26 °C. The sea averages 29.8 °C – almost as warm as a bath. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 25 days, totalling 191 mm. The air is often humid and muggy. All in all, June is a so-so month for a holiday in Batam.
Batam in June53July28° · Sea 29° · 6 h
In July, Batam is hot: daytime highs average 28 °C, and even at night it stays warm at around 26 °C. The sea averages 29.4 °C – almost as warm as a bath. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 24 days, totalling 167 mm. The air is often humid and muggy. All in all, July is a so-so month for a holiday in Batam.
Batam in July53August28° · Sea 29° · 6 h
In August, Batam is hot: daytime highs average 28 °C, and even at night it stays warm at around 26 °C. The sea averages 29.1 °C – almost as warm as a bath. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 25 days, totalling 188 mm. The air is often humid and muggy. All in all, August is a so-so month for a holiday in Batam.
Batam in August51September28° · Sea 29° · 5 h
In September, Batam is hot: daytime highs average 28 °C, and even at night it stays warm at around 26 °C. The sea averages 29.1 °C – almost as warm as a bath. Expect around 5 hours of sunshine a day. It is the rainy season: rain falls on about 24 days, totalling 186 mm. The air is often humid and muggy. All in all, September is a so-so month for a holiday in Batam.
Batam in September49October28° · Sea 29° · 5 h
In October, Batam is hot: daytime highs average 28 °C, and even at night it stays warm at around 26 °C. The sea averages 29.3 °C – almost as warm as a bath. Expect around 5 hours of sunshine a day. It is the rainy season: rain falls on about 26 days, totalling 251 mm. The air is often humid and muggy. All in all, October is a so-so month for a holiday in Batam.
Batam in October50November28° · Sea 29° · 4 h
In November, Batam is hot: daytime highs average 28 °C, and even at night it stays warm at around 25 °C. The sea averages 29.4 °C – almost as warm as a bath. Expect around 4 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 342 mm. The air is often humid and muggy. All in all, November is a so-so month for a holiday in Batam.
Batam in November52December27° · Sea 28° · 4 h
In December, Batam is hot: daytime highs average 27 °C, and even at night it stays warm at around 25 °C. The sea averages 28.4 °C – lovely and warm for swimming. Expect around 4 hours of sunshine a day. It is the rainy season: rain falls on about 27 days, totalling 319 mm. The air is often humid and muggy. All in all, December is a so-so month for a holiday in Batam.
Batam in DecemberBatam compared
Put Batam side by side with another destination.
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Batam vs. Singapore
In October the holiday weather in Batam and Singapore is about equally good (score 49 vs. 48). During the day it is about as warm in Singapore as in Batam. The sea in Singapore is 1 °C warmer.
| in October | Batam | Singapore |
|---|---|---|
| Holiday score | 49 | 48 |
| Daytime high | 28° | 28° |
| Sea | 29° | 30° |
| Sunshine | 5 h | 5 h |
| Rainy days | 26 | 26 |
| Best time | Feb | Jan – Feb |
Through the year
Indonesia in October: the best places
In October, Batam ranks 11 of 16 destinations in this country.
- Komodo Island29°28°99
- 2Senggigi31°29°88
- 3Kuta28°27°81
- 4Denpasar27°27°71
- 5Nusantara30°29°67
- 6Labuan Bajo29°29°65
- 7Ubud29°60
- 8Yogyakarta30°54
- 11BatamThis page28°29°49
Planning a trip to Batam
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Batam in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Batam has its best school-holiday weather during the Christmas holidays (score 55) and its weakest during May half-term (score 49).
- 52
Easter holidays
Mar – Apr
Fair
- 28 °C by day
- Sea 29 °C
- 6.2 h of sun a day
- 26 rainy days a month
Keep in mind: Frequent rain
- 49
May half-term
May – Jun
Fair
- 29 °C by day
- Sea 30 °C
- 6.0 h of sun a day
- 27 rainy days a month
Keep in mind: Frequent rain
- 53
Summer holidays
Jul – Aug
Fair
- 28 °C by day
- Sea 29 °C
- 6.0 h of sun a day
- 25 rainy days a month
Keep in mind: Frequent rain
- 49
October half-term
Oct
Fair
- 28 °C by day
- Sea 29 °C
- 5.0 h of sun a day
- 26 rainy days a month
Keep in mind: Frequent rain
- 55
Christmas holidays
Dec – Jan
FairBest holidays
- 27 °C by day
- Sea 28 °C
- 5.1 h of sun a day
- 24 rainy days a month
Keep in mind: Frequent rain
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 13 h 40 min
- Distance
- 10,900 km
- Time zone
- UTC+7
- Jet lag
- About 6 days (6 h east)
Rule of thumb for flying east: for a few days before, go to bed and get up a little earlier, and get plenty of morning light at your destination.
Most routes need a change of planes, which adds time.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Batam
When is the best time to visit Batam?
The best time to visit Batam is in February. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Batam?
The sea temperature in Batam ranges from 27.6 °C in January to 30.0 °C in May. At 20 °C and more, the sea is warm enough for swimming all year round.
Can you swim in Batam in October?
Yes. In October the sea averages 29.3 °C – almost as warm as a bath.
What is the warmest month in Batam?
May is the warmest month, with average highs of 29 °C and nights around 26 °C. January is the coolest month at 27 °C.
When does it rain most in Batam?
The wettest month is November with 342 mm of precipitation. The driest month is February with 116 mm.
How many hours of sunshine does Batam get?
Batam gets around 2,070 hours of sunshine a year. The sunniest month is February with 7.0 hours a day; in December there are 4.3 hours a day.
What time zone is Batam in?
Batam uses the time zone Asia/Jakarta, at UTC+7 all year.
How long is the flight from London to Batam?
A nonstop flight from London to Batam takes about 13 h 40 min, for a straight-line distance of about 10,900 km. Most routes need a change of planes, which adds time.
Which school holidays are best for Batam?
Batam has its best school-holiday weather during the Christmas holidays (score 55) and its weakest during May half-term (score 49). Holiday ratings (0–100): Easter holidays 52, May half-term 49, Summer holidays 53, October half-term 49, Christmas holidays 55.
Near Batam
Other destinations close by.
Places with a climate like Batam
Destinations whose weather through the year is closest to Batam's – good alternatives.