Sumber
Kabupaten Tuban · Indonesia
Sumber lies in East Java, Indonesia. By our climate data, the best time to visit is July–August. The warmest month is September, with average highs of 34°C (93°F); the sea is warmest in November at about 30°C (86°F).
The best months to visit are July–August.
The sea is warmest in November, at about 30°C (86°F).
Swimming season (water ≥ 21 °C): January–December.
September is the hottest month, with highs around 34°C (93°F).
July is the coldest month, with lows around 22°C (71°F).
The wettest month is January, with rain on about 18 days.
August is the sunniest month, with about 10.1 hours of sunshine a day.
16-day forecast
- Feels like
- 38°
- Humidity
- 53%
- Wind
- 10 km/h NE
- Gusts
- 25 km/h
- Cloud cover
- 47%
- Pressure
- 1010 hPa
- UV index
- 5 (now)
- Sunrise / Sunset
- 05:08 / 17:25
Next 48 hours
Pollen forecasts are only available in Europe.
Best time to visit Sumber
Average conditions for each month, from long-term climate normals (1961–2020).
Month by month
| Climate | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 31° | 31° | 31° | 32° | 32° | 32° | 32° | 33° | 34° | 34° | 33° | 31° |
| Average low | 23° | 23° | 23° | 23° | 23° | 22° | 22° | 22° | 22° | 23° | 23° | 23° |
| Sea temperature | 29° | 29° | 29° | 30° | 30° | 29° | 29° | 28° | 29° | 29° | 30° | 30° |
| Rainfall (mm) | 243 | 189 | 224 | 143 | 98 | 51 | 28 | 14 | 29 | 67 | 149 | 239 |
| Rain days | 18 | 18 | 16 | 12 | 9 | 7 | 3 | 3 | 3 | 5 | 9 | 16 |
| Sunshine per day (h) | 5.9 | 6.1 | 6.5 | 7.9 | 8.1 | 8.4 | 9.4 | 10.1 | 9.8 | 9.3 | 8 | 6.4 |
| Daylight (h) | 12.5 | 12.3 | 12.2 | 12 | 11.8 | 11.7 | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 |
| Humidity (%) | 84 | 84 | 84 | 82 | 80 | 77 | 74 | 71 | 70 | 71 | 75 | 81 |
| Wind (km/h) | 13 | 12 | 10 | 9 | 10 | 12 | 14 | 15 | 15 | 13 | 11 | 11 |
| Go score | 67 | 68 | 69 | 78 | 82 | 85 | 91 | 86 | 81 | 78 | 77 | 69 |
The go score (0–100) favours daytime highs of 22–27 °C, mild nights, plenty of sunshine and few rainy days.
Climate normals: WorldClim 2.1 (1970–2000) · CRU CL 2.0 (1961–1990) About this data: Climate normals
What to do in Sumber, month by month
When each activity is at its best, judged from the climate averages.
Rainy season: November–April Dry season: May–October (Based on average monthly rainfall)
| Activities | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Beach & swimming | Poor | Poor | Poor | Poor | Fair | Fair | Good | Good | Good | Good | Fair | Poor |
| Sightseeing & city walks | Poor | Poor | Poor | Fair | Fair | Fair | Fair | Poor | Poor | Poor | Fair | Poor |
| Diving & snorkelling | Poor | Poor | Poor | Fair | Good | Good | Good | Good | Good | Good | Good | Poor |
| Photography & sunsets | Fair | Fair | Fair | Fair | Fair | Good | Good | Good | Good | Good | Fair | Fair |
Good Fair Poor · Estimated from long-term averages of temperature, rain days, sunshine and sea temperature.
How each activity is rated
- Beach & swimming — Good: sea ≥ 24 °C, highs ≥ 26 °C and at most 6 rain days (or under 40 mm of rain in the month). Fair: sea ≥ 21 °C, highs ≥ 23 °C and at most 10 rain days (or under 80 mm).
- Sightseeing & city walks — Good: highs of 15–27 °C and few rain days. Fair: 11–33 °C.
- Diving & snorkelling — Good: sea ≥ 25 °C in a dry spell. Fair: ≥ 22 °C, or ≥ 20 °C near known dive sites.
- Photography & sunsets — Good: at least 7 hours of sunshine a day and few rain days. Fair: 5 hours or more.
Sumber: sea water temperature
Wave height: 0.4 m
Swimming seasonJanuary–December
Average sea temperature by month
Landmarks nearby
Mountains, castles, museums, beaches and heritage sites within 25 km.
Sumber: practical information
Plugs, money, emergency numbers, safety and typical prices: what to know before you go.
- Voltage
- 127 V · 50 Hz
- Driving
- Drive on the left
Indonesian Rupiah
IDR · Rp
1 USD ≈ 18,031 IDR
- Languages
- Indonesian
- Calling code
- +62
- Meal, casual restaurantIDR 137,050≈ $7.60
- CappuccinoIDR 37,200≈ $2.10
- Beer (0.5 l)IDR 52,600≈ $2.90
- Bottled water (1.5 l)IDR 17,350≈ $1.00
- Taxi, 5 kmIDR 93,950≈ $5.20
- Public transport ticketIDR 18,050≈ $1.00
- Mid-range hotel, per nightIDR 1,301,650≈ $72.00
Estimated from Indonesia’s consumer price level — real prices vary by place and season. Prices are about 31% of US levels.
- Dec 25Christmas Day
- Jan 1New Year's Day
12 earthquakes of magnitude 5 or more within 100 km in the last 51 years.
Strongest: M7 (2023).
How to get to Sumber
Nearest airports
- DHXDhoho International AirportKediri99 km
- SUBJuanda International AirportSurabaya106 km
- MLGAbdul Rachman Saleh AirportMalang144 km
Distances
- Jakarta572 km 9 h 55 · 1 h 23
- Surabaya95 km 1 h 39
- Bekasi556 km 9 h 38 · 1 h 22
- Bandung483 km 8 h 22 · 1 h 16
- Medan1,880 km 32 h 35 · 3 h 04
estimate
Hotels in Sumber
Hotels and holiday rentals with live nightly prices.
We may earn a commission when you book through this map, at no extra cost to you.
Places with a climate like Sumber
Matched on temperature and rainfall across the whole year.
Sumenep
Riberalta
Marabá
Imperatriz
Port Moresby
Dili
Wildlife around here
The species recorded most often within 25 km, and the months they’re seen.
Climate in Sumber
Add a free climate card for Sumber to your website or blog. Copy the code below.
Frequently asked questions
When is the best time to visit Sumber?
Based on climate normals, the best time to visit Sumber is July–August.
What is the weather like in Sumber in October?
In October, Sumber averages a high of 34°C (93°F) and a low of 23°C (74°F), with 67 mm of rain on about 5 days.
How warm is the sea in Sumber?
The sea is warmest in November (about 30°C (86°F)). Swimming season: January–December.
What is the rainiest month in Sumber?
January, with rain on about 18 days.
What is the nearest airport to Sumber?
Juanda International Airport (SUB), about 106 km away.
What power plugs are used in Indonesia?
Plug types C, F, at 127 V.
What currency is used in Indonesia?
Indonesian Rupiah (IDR).
What is the emergency number in Indonesia?
112.
Is Indonesia safe to visit?
US travel advisory: Exercise increased caution. UK travel advice: No travel warnings.
What time zone is Sumber in?
Asia/Jakarta (UTC+7).