Weather in Sentani

Planning your day or preparing for a trip? Here you will find the most up-to-date information about the weather in Sentani, including detailed forecasts and clear charts.

The climate in Sentani can be described as equatorial and humid, with remarkably stable temperatures throughout the year. Located in Indonesia, this city offers travellers eternal summer: the average air temperature hardly changes, fluctuating within a comfortable range of +24°C to +28°C. There is no extreme heat or sudden cooling, making the weather predictably warm during any month.

Distinct seasons, common in temperate latitudes, are not observed in Sentani. Instead of a clear division between dry and wet periods, the weather here shows consistency regarding rainfall. Rainy days are recorded very frequently — between 26 and 30 days per month throughout the year. This means that rainfall is an integral part of the local atmosphere, whether you plan your trip for January or July.

Tourists should expect high humidity and be prepared for frequent rain. However, statistics suggest that despite the high number of rainy days, the intensity of the rainfall can be moderate. Travellers are advised to always carry an umbrella or raincoat, but you can confidently rely on mild tropical warmth, which is ideal for exploring the region's nature.

The climate in Sentani is characterised by remarkable stability, typical of Indonesia's equatorial latitudes. Eternal summer reigns here throughout the year: the average air temperature remains virtually unchanged, staying within a very narrow range of around 26°C. Travellers need not worry about sudden drops in temperature or seasonal changes in the traditional sense — the weather remains steady and predictably warm from January to December.

Even with a close study of statistics, it is difficult to distinguish pronounced "hot" or "cold" periods. Technically, the warmest months are May and October, when daily highs reach 28.8°C. July, formally considered the coolest month of the year, brings only barely noticeable "relief": the average temperature drops to 25.9°C, which still feels like full, humid tropical warmth.

Daily temperature fluctuations in Sentani are also minimal, creating a mild atmosphere for relaxation without thermal stress. The difference between day and night readings is only about 4 degrees. Nights here are very warm and balmy — the thermometer rarely drops below 24°C, so you will hardly need warm clothing even for late walks by the lake. During the day, the air consistently warms up to 28°C, allowing you to enjoy nature without extreme, scorching heat.

The climate in Sentani is characterised by enviable stability: it is warm and humid all year round. Analysing weather data, one can conclude that there is no clearly defined dry season in this region. Rainfall is distributed evenly and regularly, so tourists planning a trip to Indonesia should always have an umbrella or raincoat handy, regardless of the chosen travel dates.

The frequency of rain here is truly impressive and is the main feature of the local weather. On average, the number of rainy days ranges from 26 to 30 per month. The peak humidity in terms of rainfall frequency occurs in December, when it can rain almost every day (up to 30 days). July and September can be tentatively called the "driest" months, although even then, rainfall is likely on about 26 days of the month.

The volume of rainfall changes insignificantly throughout the year. A slightly wetter period is observed from November to March (about 10 mm), while minimum values (about 7 mm) are recorded from August to October. Such statistics indicate that rain in Sentani is a constant phenomenon, creating the unique atmosphere of a tropical region.

When travelling to Sentani, plan for the consistently warm weather that prevails year-round with average temperatures of around +26°C. Your luggage should mainly consist of clothing made from light, natural fabrics such as cotton and linen, which allow the skin to breathe in the tropical climate. T-shirts, shorts, and loose trousers will be the most comfortable choice, and you will likely not need warm clothing, as even at night the temperature rarely drops below +24°C.

A key factor when packing is rainfall, as it rains here almost daily throughout the year (from 26 to 30 rainy days per month). Be sure to bring a high-quality raincoat, a light waterproof windbreaker, or a compact umbrella. Footwear should be as comfortable and practical as possible: quick-drying sandals or sneakers with water-repellent treatment that can handle moisture and dirt are ideal.

Despite frequent cloud cover and rain, the sun in Indonesia is very strong, so do not forget to pack sunscreen, a hat, and sunglasses. Also, given the high humidity and frequent rain, it is wise to bring waterproof cases for your phone, camera, and documents to protect valuables during your walks.