Climate and monthly weather forecastGizo, Solomon Islands
Climate and monthly weather forecast
The climate of Gizo
Gizo, located in the Solomon Islands, predominantly features an tropical rainforest climate, recognized as Af in the Köppen climate classification. Geographically, Gizo is located on an island close to the equator, contributing to its year-round warm climate. Constantly high temperatures mark the Gizo climate, with a slight fluctuation between the coldest month with a minimum of 23°C (73.4°F) and the hottest month with a maximum of 31°C (87.8°F).The rainfall in Gizo is abundant and evenly distributed over the years, diminishing the significant differences between dry and rainy seasons typically seen in other tropical climates. The monthly rainfall varies from a low of 246mm (9.69") to a high of 396mm (15.59"), indicating the absence of a definitive dry season. The number of rainfall days throughout the year ranges from 18 to 22, reaffirming the perennial wet conditions of the region.
An oscillation in daylight hours from 11.7 hours to 12.6 hours is seen over the year, which is relatively consistent due to Gizo's equatorial position. The sea temperature also fluctuates mildly over the year, swinging from a low of 28.3°C (82.9°F) to a high of 30.3°C (86.5°F).
The best time to visit Gizo
With a consistently high UV index, reaching up to 12 throughout most of the year, any time could be conducive for a visit to Gizo for those who love tropical climates and can handle high radiation levels. However, the most favorable time to visit Gizo might be from May to November. During this period, the sea temperatures tends to be on the cozier side, ranging from 28.3°C (82.9°F) to 29.8°C (85.6°F), making it perfect for sea-bathing and water activities. Moreover, the rainfall during this period drops to between 246mm (9.69") and 281mm (11.06") - slightly lower than the peak months.The worst time to visit Gizo
Though Gizo does not face any extreme climate conditions, the months of December to April may be the least favorable for a visit. During these months the rainfall reaches its peak ranging from 305mm (12.01") to 396mm (15.59"), with 20 to 22 days of rain in a month. Additionally, the UV index remains consistently high, reaching 12, which might not be suitable for those with less tolerance to high levels of solar radiation.Spring weather in Gizo
The concept of spring as it is known in temperate climates does not apply to Gizo, as it experiences a typical equatorial climate with minor changes in weather parameters throughout the year. If considering the period of March, April, and May as Spring, the temperature in Gizo fluctuates around 24°C (75.2°F) to 31°C (87.8°F) with substantial rainfall of between 305mm (12.01") and 396mm (15.59"). The UV index remains at its peak (around 12) and the sea temperature averages around 29.8°C (85.6°F) to 30.1°C (86.2°F).Summer weather in Gizo
The summer months, June to August, bring little variance to Gizo's typical climate. The temperature stays consistent from 23°C (73.4°F) to 30°C (86°F). The rainfall decreases slightly to between 246mm (9.69") and 362mm (14.25") but still remains high considering the typical standards for a "summer" season in most places. Over this period, the UV index drops slightly to 10, but the sea temperature offers a refreshing dip, ranging from 28.3°C (82.9°F) to 28.7°C (83.7°F).Autumn weather in Gizo
Technically speaking, Gizo does not experience the fall season in the traditional sense due to its equatorial climate. For the sake of comparison, September to November can be considered as the "Autumn" months. The temperature remains more or less stable, between 23°C (73.4°F) to 31°C (87.8°F). Rainfall remains high between 245mm (9.65") and 281mm (11.06"). The UV index begins climbing back up to 12, and the sea temperature is comfortably warm, from 28.3°C (82.9°F) to 29.8°C (85.6°F).Winter weather in Gizo
Despite its equatorial location, Gizo gets a slightly cooler break during the "Winter" months of December to February. However, these differences are minimal, with temperatures varying from 24°C (75.2°F) to 31°C (87.8°F). The rainfall reaches its yearly peak over this period, with monthly volume ranging from 288mm (11.34") to 396mm (15.59"). The UV index stays at a constant maximum of 12, and the sea temperature remains warm, varying between 29.5°C (85.1°F) to 30.3°C (86.5°F). This may not be an ideal "Winter" escape for those looking for a cooler respite.Weather in January
January in Gizo, Solomon Islands is characterized by high temperatures, frequent rainfall, and high UV index. With temperatures remaining consistent from 24°C (75.2°F) to 31°C (87.8°F), the island displays a mix of bouts of sunshine and showers. Weather in January »Weather in February
February sees a slight decrease in rainfall and daylight when compared to January while maintaining a steady high UV index. From a temperature perspective, February is on par with the previous month, with Gizo enjoying a tropical climate ranging from 24°C (75.2°F) to 31°C (87.8°F). Weather in February »Weather in March
In March, Gizo encounters another slight drop in rainfall but remains relatively consistent regarding the other weather parameters. It closely mirrors February in terms of daylight and sunshine hours, UV index, and slightly lower rainfall, recorded at 363mm (14.29"). Weather in March »Weather in April
April brings forth the beginning of a subtle change in Gizo's weather parameters. While maintaining the temperature band from 24°C (75.2°F) to 31°C (87.8°F), the region experiences a further decrease in rainfall, recorded at 305mm (12.01"). Weather in April »Weather in May
May marks the onset of Gizo's transition season with marginally cooler sea temperatures and reduced rainfall. This month signifies further reduction in rainfall, down to 270mm (10.63"), while the UV index begins a slow decrease. The temperature range roughly continues on par with April, keeping up the steady tropical climate. Weather in May »Weather in June
June in Gizo is marked by a palpable transition towards lower sea temperature and continual decrease in rainfall. The daylight and sunshine hours remain relatively constant, offering substantial light for recreational activities. The UV index dips to its lowest for the year, marking a drop in intensity of the sunlight. Weather in June »Weather in July
July sees further progression in the transition of Gizo's weather. The sea temperature records its annual low, dipping to 28.3°C (82.9°F). This month records an increase in rainfall, up to 362mm (14.25"), contrasting with the drier trend experienced over the past two months. Weather in July »Weather in August
August in Gizo sees a reduced frequency of showers compared to July, paired with an increase in sea temperature. The UV index starts climbing again, indicating the resurgence of intense sunlight. Despite the modifications in weather patterns, the temperature range remains constant, reinforcing the persistent tropical weather on the island. The dawn of August sees an average high-temperature of a still tropical 30°C (86°F), on par with July's climate. Weather in August »Weather in September
September's weather in Gizo indicates an impending change of season with a gradual increase in sea temperature and a steady UV index. The rainfall has remained on a steady path since August, creating a balance between sunshine and showers. Weather in September »Weather in October
October presents a steady climb in sea temperatures and consistent rainfall patterns, indicating the onset of the wet season in Gizo. October's weather conditions are almost identical to those in September but with a slight increase in sea temperatures. Weather in October »Weather in November
November escorts in more noticeable changes, with an increase in sea temperature to 29.8°C (85.6°F) and consistent rainfall levels. The daylight hours see a slight surge compared to the previous months, enhancing the opportunities for outdoor activities. Weather in November »Weather in December
In December, Gizo experiences weather conditions very similar to November, with a relatively high sea temperature of 30.3°C (86.5°F) and consistent rainfall. The daylight hours also increase slightly, staying in tandem with the approach of the festive season. Weather in December »Updated: Aug 27, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Gizo's average highest temperatures are recorded in January through April, September through December, reaching a high of 31°C (87.8°F).
January is the month with the most rainfall. Rain falls for 22 days and accumulates 396mm (15.59") of precipitation.
Throughout the year, in Gizo, Solomon Islands, there are 242 rainfall days, and 3643mm (143.43") of precipitation is accumulated.
January, March, May, June, August through November, with an average of 6h of sunshine, are months with the most sunshine.
January through April, August through December, with an average maximum UV index of 12, are months with the highest UV index.
The months with the least sunshine are February, April, July and December, with an average of 5h of sunshine.
With average temperatures fluctuating between a high of 29°C (84.2°F) and a low of 23°C (73.4°F), June stands out as the coldest month.
The month with the shortest days is June, with an average of 11h and 42min of daylight.
The months with the lowest UV index are June and July, with an average maximum UV index of 10.
August and September, with an average sea temperature of 28.3°C (82.9°F), are months with the coldest seawater.
November is the month with the least rainfall. Rain falls for 18 days and accumulates 245mm (9.65") of precipitation.
With an average sea temperature of 30.3°C (86.5°F), December is the month with the warmest seawater.
December has the longest days of the year, with an average of 12h and 36min of daylight.
Gizo does not observe Daylight Saving Time (DST). +11 timezone is used over the entire year.
Average temperature
Gizo, Solomon Islands
The warmest months (with the highest average high temperature) are January, February, March, April, September, October, November and December (31°C).
The month with the lowest average high temperature is June (29°C).
The months with the highest average low temperature are January, February, March, April, May, October and December (24°C).
The coldest months (with the lowest average low temperature) are June, July, August, September and November (23°C).
Average rainfall
Gizo, Solomon Islands
- Average rainfall in January:
396mm - Average rainfall in February:
356mm - Average rainfall in March:
363mm - Average rainfall in April:
305mm - Average rainfall in May:
270mm - Average rainfall in June:
246mm
- Average rainfall in July:
362mm - Average rainfall in August:
277mm - Average rainfall in September:
281mm - Average rainfall in October:
254mm - Average rainfall in November:
245mm - Average rainfall in December:
288mm
The wettest month (with the highest rainfall) is January (396mm).
The driest month (with the least rainfall) is November (245mm).
Average rainfall days
Gizo, Solomon Islands
- Average rainfall days in January:
22 days - Average rainfall days in February:
21 days - Average rainfall days in March:
22 days - Average rainfall days in April:
20 days - Average rainfall days in May:
20 days - Average rainfall days in June:
19 days
- Average rainfall days in July:
22 days - Average rainfall days in August:
20 days - Average rainfall days in September:
19 days - Average rainfall days in October:
20 days - Average rainfall days in November:
18 days - Average rainfall days in December:
19 days
The months with the highest number of rainy days are January, March and July (22 days).
The month with the least rainy days is November (18 days).
Average sea temperature
Gizo, Solomon Islands
The best month for swimming (with the highest average sea temperature) is December (30.3°C).
The coldest months (with the lowest average sea temperature) are August and September (28.3°C).
Average daylight / Average sunshine
Gizo, Solomon Islands
- Average daylight in January:
12h and 30min - Average daylight in February:
12h and 24min - Average daylight in March:
12h and 6min - Average daylight in April:
11h and 54min - Average daylight in May:
11h and 42min - Average daylight in June:
11h and 42min
- Average daylight in July:
11h and 42min - Average daylight in August:
11h and 54min - Average daylight in September:
12h and 6min - Average daylight in October:
12h and 18min - Average daylight in November:
12h and 30min - Average daylight in December:
12h and 36min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 42min).
The months with the most sunshine are January, March, May, June, August, September, October and November (Average sunshine: 6h).
The months with the least sunshine are February, April, July and December (Average sunshine: 5h).
Average UV index
Gizo, Solomon Islands
The months with the highest UV index are January, February, March, April, August, September, October, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 10).
