Climate and monthly weather forecast
Apia, Samoa

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The large Methodist church in the town of Apia, Samoa
The large Methodist church in the town of Apia, Samoa

The climate of Apia

Apia, found in Samoa, is a city situated in the tropical area, presenting a climate under the categorization of Tropical rainforest climate according to the Köppen climate classification. A unique mix of varied attributes of weather is a typical year-round phenomenon in Apia. This prominent feature of tropical climate renders the city a consistent range of temperature from 26°C (78.8°F) to 28.7°C (83.7°F). A small variation is only noticeable, with the warmest months being March and April while the slightly cooler period falls on August and September.

Humidity is quite significant in Apia with relative humidity levels ranging from 75% to 78%. On average, the city is graced by sea temperatures that fluctuate from 27.9°C (82.2°F) to 29.7°C (85.5°F), making it pleasant all year. More prominently, rainfall appears lucrative throughout the year, with millimeters reaching from 57mm (2.24") in September to a whopping 175mm (6.89") in January. This shows the city experiences a considerably wet period, although not devoid of its drier spells. Recognizably, September receives the least rainfall. Similarly, taking daylight into consideration, the city gets from 11.3 hours in June to 12.9 hours in December.

Cloud cover ranges from 38% to 49%, displaying no markedly cloudy or clear periods. The dominant wind speeds in Apia move from 14.8km/h (9.2mph) in March to 24.7km/h (15.3mph) in July. The climate also showcases a consistent level of atmospheric pressure with values swaying between 1007.5mb and 1012.3mb.

The best time to visit Apia

Considering the prevailing climate and weather conditions, touring Apia between June and September would be an ideal choice. During these months, the temperature remains steady and slightly cooler, while the sea temperatures are relatively warm but not overly hot. Relative humidity is at its lowest, making the days considerably comfortable. Interestingly, September marks the lowest rainfall throughout the year, providing plenty of opportunities to explore the city.

The worst time to visit Apia

In contrast, January could be considered the least favorable time to visit. January faces a peak in rainfall, touching the 175mm (6.89") mark. The increased rainfall, tied with the high sea temperatures during the same period, contribute to a much higher humidity level, potentially causing discomfort to those unaccustomed to these condition.

Spring weather in Apia

Spring in Apia from September to November presents favorable weather with average temperatures oscillating from 27.3°C (81.1°F) to 28.1°C (82.6°F). With the lowest rainfall observed in September 57mm (2.24"), the season is quite delightful. In November the rainfall increases to 112mm (4.41"). Daylight ranges from 12 hours to 12.8 hours, while the sea temperature varies from 27.9°C (82.2°F) in September to 29.2°C (84.6°F) in November.

Summer weather in Apia

Running from December through February, summer continues to maintain warm temperatures from 27.5°C (81.5°F) to 28.5°C (83.3°F). This period features a significant rise in rain volumes, peaking at 175mm (6.89") in January. Average daylight times remain consistent throughout the season, from 12.8 hours in December to 12.5 hours in February. Sea temperatures stay invitingly warm, varying from 29.3°C (84.7°F) to 29.5°C (85.1°F), surely a tempting feature for avid beach-goers.

Autumn weather in Apia

The months of March, April, and May make up the autumn season in Apia. Expectedly, these months sport temperatures from 27°C (80.6°F) to 28.7°C (83.7°F). A slight reduction in rainfall begins from March, although the rainfall volume remains relatively high, especially in May with 118mm (4.65"). Full daylight fluctuates from 12.2 hours in March to 11.5 hours in May. Concurrently, sea temperature ranges from 29.7°C (85.5°F) to 29.3°C (84.7°F).

Winter weather in Apia

The winter season, June to August, exhibits average temperatures fluctuating from 26°C (78.8°F) to 27.8°C (82°F), signifying a subtle coolness in the climate. Despite being winter, the city does not shy from rainfall; 130mm (5.12") in June peaks to 146mm (5.75") in July and drops to 84mm (3.31") in August. Daylight time continues to remain quite consistent, hovering from 11.3 hours to 11.7 hours. The sea temperature takes a slight dip during these months, marching from 29°C (84.2°F) in June to 27.9°C (82.2°F) in August.

Weather in January

As in most tropical regions, January in Apia, Samoa brings about consistently warm temperatures. January stands out with the highest recorded monthly rainfall in the year at 175mm (6.89"), potentially affecting travel plans and outdoor events. Weather in January »

Weather in February

The month of February carries on the warm, tropical weather pattern of Apia, Samoa. While February still sees a significant amount of rain with 155mm (6.1") average rainfall, this marks a reduction when compared to January. Encouragingly, February offers slightly more sunshine hours than March, setting the stage for engaging outdoor activities. Weather in February »

Weather in March

March in Apia, Samoa continues the year-round tropical weather trend. This month sees the least amount of rainfall in the first quarter of the year, with an average of 73mm (2.87") of rain over 21 days. The prevailing weather conditions in March make it slightly different from its neighboring months. Weather in March »

Weather in April

The tropical climate persists in Apia, Samoa during April although the It brings in more rainfall than March but less than May, with an average precipitation of 124mm (4.88"). Despite the reasonable amount of rainfall, outdoor pursuits continue to flourish. Weather in April »

Weather in May

May in Apia, Samoa brings about slightly cooler temperatures than the previous month. However, the average rainfall increases to 118mm (4.65"), slightly more than in April, but less than in June. Consequently, May provides an interesting contrast when compared to the surrounding months. Weather in May »

Weather in June

June sees the continuation of the tropical weather in Apia, Samoa, although with noticeable changes. Average rainfall increases to 130mm (5.12"), surpassing May's rainfall, yet standing below July's expected precipitation. Wind speeds enhance during this time, going up to 24km/h (14.9mph), allowing enthusiasts to engage in more adventurous outdoor activities. Weather in June »

Weather in July

Moving into the heart of the year, July in Apia, Samoa also presents its unique climate characteristics. July stands out with the highest average wind speed of the year, reaching up to 24.7km/h (15.3mph). It records more rainfall than June but less than the subsequent month, August, with 146mm (5.75"). Weather in July »

Weather in August

August in Apia, Samoa continues to maintain the usually warm climate, but the weather conditions shift subtly. The rainfall reaches 84mm (3.31"), which is considerably less compared to July's rainfall but more than what ensues in September. Weather in August »

Weather in September

September in Apia, Samoa sees a continuation of the tropical climate with subtle shifts marking the transition phase. The average rainfall hits a yearly low with only 57mm (2.24") spread across approximately 19 days. This creates a noticeably drier spell when compared to August and the approaching October. Weather in September »

Weather in October

October in Apia, Samoa, brings with it a return to the norm of tropical weather. A significant increase from September's rainfall record, October witnesses an average of 115mm (4.53") of rain over the month, although this is less than the amount expected in November. Weather in October »

Weather in November

November in Apia, Samoa, carries the characteristics of the late portion of the year, marked by shifting patterns and increased rainfall. A higher rainfall average of 112mm (4.41") for the month, less than October's amount, signals the coming of the wet season. Weather in November »

Weather in December

The tropical climate of Apia, Samoa, continues in December, blending the usual warmth with the distinct characteristics of the holiday season. December is noticeable for receiving an average rainfall of 162mm (6.38"), which is higher than November but less than January. Weather in December »

Frequently asked questions

What is the wettest month?

The month with the most rainfall is January, when the rain falls for 19.9 days and typically aggregates up to 175mm (6.89") of precipitation.

How much does it rain?

Throughout the year, there are 246.7 rainfall days, and 1451mm (57.13") of precipitation is accumulated.

What is the month with the highest UV index in Apia?

January through December, with an average maximum UV index of 7, are months with the highest UV index in Apia.

When is the lowest UV index?

The months with the lowest UV index are January through December, with an average maximum UV index of 7.

What month is the hottest?

March and April are the warmest months, with an average high-temperature of 28.7°C (83.7°F).

What is the least humid month?

With an average relative humidity of 75%, March is the least humid month.

When is the sea warmest?

March is the month with the warmest seawater, with an average sea temperature of 29.7°C (85.5°F).

What month has the most sunshine?

The month with the most sunshine is March, with an average of 8.7h of sunshine.

What are the most humid months?

June through September, with an average relative humidity of 78%, are most humid months.

What is the month with the shortest days?

The month with the shortest days is June, with an average of 11h and 18min of daylight.

What is the month with the least sunshine in Apia?

The month with the least sunshine is July, with an average of 7.3h of sunshine.

What months are the sea coldest?

August and September, with an average sea temperature of 27.9°C (82.2°F), are months with the coldest seawater.

What part of the year is the coldest?

In Apia, September is the coldest month, with temperatures averaging a high of 27.3°C (81.1°F) and a low of 26.3°C (79.3°F).

What is the driest month?

September is the month with the least rainfall. Rain falls for 18.7 days and accumulates 57mm (2.24") of precipitation.

When are the longest days?

With an average of 12h and 54min of daylight, December has the longest days of the year in Apia, Samoa.

Is there Daylight Saving Time (DST)?

Apia does not utilize Daylight Saving Time (DST). +13 timezone is used over the entire year.

Average temperature
Apia, Samoa

Average temperature - Apia, Samoa

The warmest months (with the highest average high temperature) are March and April (28.7°C).
The month with the lowest average high temperature is September (27.3°C).

The month with the highest average low temperature is January (27.6°C).
The coldest month (with the lowest average low temperature) is August (26°C).

Average pressure
Apia, Samoa

Average pressure - Apia, Samoa

The month with the highest atmospheric pressure is September (1012.3mbar).
The month with the lowest atmospheric pressure is January (1007.5mbar).

Average wind speed
Apia, Samoa

Average wind speed - Apia, Samoa

The windiest month (with the highest average wind speed) is July (24.7km/h).
The calmest month (with the lowest average wind speed) is March (14.8km/h).

Average humidity
Apia, Samoa

Average humidity - Apia, Samoa

The months with the highest relative humidity are June, July, August and September (78%).
The month with the lowest relative humidity is March (75%).

Average rainfall
Apia, Samoa

Average rainfall - Apia, Samoa

The wettest month (with the highest rainfall) is January (175mm).
The driest month (with the least rainfall) is September (57mm).

Average rainfall days
Apia, Samoa

Average rainfall days - Apia, Samoa

The month with the highest number of rainy days is April (22.7 days).
The month with the least rainy days is September (18.7 days).

Average sea temperature
Apia, Samoa

Average sea temperature - Apia, Samoa

The best month for swimming (with the highest average sea temperature) is March (29.7°C).
The coldest months (with the lowest average sea temperature) are August and September (27.9°C).

Average daylight / Average sunshine
Apia, Samoa

Average daylight / Average sunshine - Apia, Samoa

The month with the longest days is December (Average daylight: 12h and 54min).
The month with the shortest days is June (Average daylight: 11h and 18min).

The month with the most sunshine is March (Average sunshine: 8h and 42min).
The month with the least sunshine is July (Average sunshine: 7h and 18min).

Average sunshine days
Apia, Samoa

Average sunshine days - Apia, Samoa

The month with the most sunshine days is December (10.4 days).
The month with the least sunshine days is June (2.7 days).

Average UV index
Apia, Samoa

Average UV index - Apia, Samoa

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

Average visibility
Apia, Samoa

Average visibility - Apia, Samoa

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

Apia, Samoa

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