Weather in Honiara

Get the latest weather information for Honiara. In this section, you will find up-to-date data, forecasts, and useful weather charts to help plan your day.

Honiara, the capital of the Solomon Islands, is characterized by an equatorial climate, which means hot and humid weather all year round. The average annual temperature stays around 25-26°C, with minimal fluctuations between months. Daytime highs usually reach 27-28°C, and nighttime lows rarely drop below 23-24°C, ensuring consistently warm conditions for travellers at any time of the year.

Honiara does not have distinct seasons in the traditional sense. Instead, there is constant high humidity and frequent rainfall. Although rainfall varies slightly, with peaks between November and April (12-17 mm per month) and a slight decrease in June-August (8-9 mm per month), there are very many rainy days throughout the year – from 25 to 29 days monthly. This creates the feeling of a permanent rainy season, although the intensity of the precipitation may vary.

Thus, when planning a trip to Honiara, it is worth being prepared for warm, humid weather with a high probability of daily rain, regardless of the month of your visit. Light, breathable clothing and rain protection will be your faithful companions.

The temperature regime in Honiara is distinguished by striking stability throughout the year, which is typical for an equatorial climate. Monthly average temperatures fluctuate within a very narrow range. The warmest month is usually January with an average temperature of about 26.0°C, and the "coolest" is August, when the average temperature is approximately 25.3°C. This insignificant difference highlights the constantly warm conditions in the capital of the Solomon Islands.

During the relatively warmer period, which roughly covers the months from November to May, average daily temperatures stay within 25.7°C - 26.0°C. During the day, the air warms up to 27.7°C - 27.9°C, creating a hot and humid atmosphere, especially considering the high humidity. At night, the temperature drops slightly to 23.7°C - 24.1°C, ensuring warm nights year-round.

Even in months that can be considered relatively cooler (approximately from June to October), very warm weather persists in Honiara. Average temperatures during this period are 25.3°C - 25.6°C. Daytime highs reach 27.1°C - 27.7°C, and nighttime lows hover around 23.4°C - 23.8°C. It is important to note that daily temperature fluctuations are small, usually ranging from 3.5°C to 4.1°C, which further emphasizes the city's even and consistently warm climate.

Precipitation in Honiara is a practically year-round and very frequent phenomenon, typical of the equatorial climate of the Solomon Islands. Instead of clearly defined wet and dry seasons, the city experiences constant high humidity with regular rains. It does not snow here; all precipitation comes in the form of rain.

Regarding rainfall amounts, the peak occurs in January, when about 17 mm falls on average. Other relatively wet months are February and December (about 16 mm), as well as March (15 mm) and November (14 mm). The lowest amount of precipitation is observed in June and July – just 8 mm each. However, it is important to note that even in the "driest" months by rainfall volume, the number of rainy days remains very high. For example, in July, it rains on average for 25 days, and in the wettest months, such as January, there are 28 rainy days. In March, May, October, and November, the number of days with precipitation reaches a maximum of 29 days.

This combination of relatively low total monthly rainfall volume with a very high frequency of rainy days suggests that Honiara is characterized by frequent, but perhaps not too heavy or prolonged rains, but rather drizzling or short showers. Travellers should be prepared for light rain on any day, regardless of the season, so an umbrella or a light raincoat will be useful companions.

When planning a trip to Honiara, it is important to choose your wardrobe correctly, considering its equatorial climate. Warm and very humid weather prevails here all year round with an average temperature of about 25-26°C. Therefore, the basis of your luggage should be light, breathable clothing made of natural fabrics such as cotton or linen. Given that it rains very often (from 25 to 29 days a month), be sure to take a reliable umbrella or a light waterproof raincoat (poncho). Sandals or other footwear that dries quickly or is water-resistant will also come in handy, as you will almost certainly encounter precipitation.

Besides clothing, don't forget other important items. Sunscreen with high SPF, a hat, and sunglasses are necessary, as even on cloudy days, the tropical sun can be very active. In conditions of high humidity and heat, insect repellent will be useful, especially for evening walks. Comfortable walking shoes are also important if you plan to explore the city and its surroundings. Since the temperature practically does not change throughout the year, these tips are relevant for any season. Although the amount of precipitation varies slightly, from 8 mm in June-July to 17 mm in January, the high frequency of rainy days makes rain protection gear a mandatory attribute for a traveller to Honiara at any time of the year.

For maximum comfort, choose clothes that can be easily combined. Although the principle of layering is not as critical due to consistently high temperatures, a light cover-up or a long-sleeved shirt may be useful in the evening or for sun protection. And, of course, do not forget swimwear, as the Solomon Islands are famous for their opportunities for water recreation. A compact quick-drying towel can also prove to be a very useful companion in your adventures.