Climate and monthly weather forecastPort Olry, Vanuatu
Climate and monthly weather forecast
The climate of Port Olry
Port Olry, situated in the nation of Vanuatu, harbors a tropical rainforest climate, also known as an Af climate according to the Köppen climate classification system. This type of climate typically includes high average temperatures throughout the year and a substantial amount of rainfall every month.Throughout the year, Port Olry experiences a narrow range of average monthly temperatures. High temperatures fluctuate modestly, from a yearly low of 25.9°C (78.6°F) in July to a peak of 28.9°C (84°F) in March. Low temperatures also exhibit minor variations, illustrating a range from 22.3°C (72.1°F) in August to 25.2°C (77.4°F) in both February and March. This reliable warmth is a hallmark of a tropical rainforest climate, wherein temperatures remain consistently high.
In terms of precipitation, there is a discernible pattern throughout the year. Rainfall in Port Olry shows significant variations, from a low of 38mm (1.5") in September to a high of 213mm (8.39") in February. This pattern indicates that despite being a rainforest climate, different months can have varying amounts of rainfall.
Unique weather conditions include a consistently high humidity level throughout the year, from 80% to 83%. The highest number of rainfall days is observed in March, with 26.1 days. Furthermore, the cloud cover is fairly consistent year-round, fluctuating between 40% and 45%.
The best time to visit Port Olry
Considering the weather elements, the most favorable time to visit Port Olry is between September and November. This period offers relatively lower rainfall, ranging between 38mm (1.5") to 96mm (3.78"), and fewer rainfall days, from 14 to 20.9 days. Meanwhile, the temperature remains comfortably warm, from 26°C (78.8°F) to 27.5°C (81.5°F) for high temperatures and from 23.2°C (73.8°F) to 24.1°C (75.4°F) for low temperatures.Additionally, these months see a relative increase in sunshine hours, oscillating about 7.5 hours to 8.9 hours per day, and a decrease in cloud cover, which measures at about 43% to 45%. Consequently, these conditions make noteworthy contributions to the pleasantness of the overall climate during this period.
The worst time to visit Port Olry
The least desirable time to visit Port Olry is likely during the months of February and March, owing to the higher incidence of rainfall. During these months, average rainfall measures 213mm (8.39") and 195mm (7.68") respectively. Rainfall days are also the most abundant, registering 22.4 days in February and 26.1 days in March. Simultaneously, cloud cover percentage remains around 42%, reducing the chances for clear skies.Nonetheless, it is worth highlighting the persistent high temperatures during these months, high temperatures oscillating from 28.6°C (83.5°F) to 28.9°C (84°F) and low temperatures around 25.1°C (77.2°F) to 25.2°C (77.4°F), providing a very warm setting in these wetter months.
Spring weather in Port Olry
Port Olry experiences relatively consistent weather conditions during the spring months of September, October, and November. High temperatures are observed to be between 26.4°C (79.5°F) in September and 27.5°C (81.5°F) in November. The low temperatures range from 23.2°C (73.8°F) to 24.1°C (75.4°F), providing a balmy nocturnal experience. While rainfall during these months decreases from 38mm (1.5") to 96mm (3.78"), the daily sunshine hours increase, from 7.7 hours in September to 8.9 hours in November.Summer weather in Port Olry
In summer, between December and February, Port Olry sees high temperatures rolling from 28.2°C (82.8°F) to 28.9°C (84°F), while low temperatures continue to be warm, fluctuating from 24.7°C (76.5°F) to 25.2°C (77.4°F). Rainfall intensifies significantly during this period, peaking at 213mm (8.39") in February. Despite this, the city experiences more sunshine hours of between 10.1 hours in December and 9.3 hours in February.Autumn weather in Port Olry
The autumn period, between March and May, witnesses a slight decrease in temperature. The average high temperatures moderate from 28.9°C (84°F) to 27.3°C (81.1°F), while low temperatures oscillate between 25.2°C (77.4°F) and 24°C (75.2°F). Rainfall drops considerably, from 195mm (7.68") in March to 80mm (3.15") in May, while sunshine hours decrease from 9.3 hours to 6.1 hours per day.Winter weather in Port Olry
Winter months, from June to August, invite high temperatures ranging from 25.9°C (78.6°F) to 26.7°C (80.1°F), and low temperatures ranging from 22.7°C (72.9°F) to 23.7°C (74.7°F). Rainfall during this season is at its lowest, especially in July with only 45mm (1.77") documented. Sunshine hours are the fewest in these months, downsizing to 5.6 hours in July.Weather in January
The New Year in Port Olry, Vanuatu welcomes warmth, with average high temperatures peaking at 28.4°C (83.1°F). The climate is accompanied by regular bouts of rain, making the overall weather wetter compared to the months that follow. Weather in January »Weather in February
February continues to keep Port Olry warm, with the highest temperature marginally increasing from the previous month to around 28.6°C (83.5°F). The weather remains mostly stable with tropical characteristics similar to January. Weather in February »Weather in March
Transitioning from February to March, Port Olry doesn't witness a major shift in weather patterns. The lush landscapes continue to get regular showers while the temperatures remain consistently warm. Sunrise and sunset timings slightly vary from the last month, resulting in reduced daylight hours. Weather in March »Weather in April
Port Olry welcomes April with a noticeable change in weather conditions. This month records a drop in average high temperatures, falling to around 28.3°C (82.9°F). A prominent reduction in rainfall comes as a pleasant surprise, indicating the slow arrival of the drier part of the year. Weather in April »Weather in May
May marks the beginning of slightly cooler temperatures in Port Olry. The change from April to May manifests as a further decrease in rainfall and temperature, offering a comparatively drier and cooler environment. Sunlight becomes slightly scarcer as the days shorten. Weather in May »Weather in June
In June, Port Olry experiences a cooler weather pattern with temperatures dropping further. This month stands out for having the least hours of sunshine per day, amplifying the coolness in the environment. Rainfall continues to decline following the trend from May. Weather in June »Weather in July
July in Port Olry holds the distinction of having the year's lowest recorded temperatures, dipping to around 22.7°C (72.9°F). This month, humidity levels slightly decrease, resulting in cooler days and nights. It is one of the driest months, providing opportunities for various outdoor explorations. Weather in July »Weather in August
In August, the weather in Port Olry begins a gradual climb back to the warmer side. The average high temperature indicates the onset of high temperature trends for the remaining part of the year. With limited rainfall and minimal humidity, the environment remains comfortably tropical. Weather in August »Weather in September
Though September marks the end of summer globally, Port Olry continues to bask in warm temperatures. The weather remains consistently tropical with average high temperatures settling at 26.4°C (79.5°F). A noticeable change from August is the slight increase in rainfall. Weather in September »Weather in October
October in Port Olry indicates a transition towards the wetter months of the year with increased rainfall. Despite the rise in rainfall, the average high temperature continues its upward trend. Sufficient sunshine ensures that days remain warm and inviting for outdoor enthusiasts. Weather in October »Weather in November
The weather in November can be characterized by a mix of warm temperatures and moderate rainfall in Port Olry. This month experiences fewer sunny days than October but the intensity of sunlight increases slightly. The city sees a little drop in wind speed, reducing the cooling effect of sea breezes. Weather in November »Weather in December
December brings in moderate weather conditions in Port Olry. This month sees a rise in the average high temperature, peaking at 28.2°C (82.8°F). As the year draws to a close, the weather patterns transition back to those experienced in January. Weather in December »Updated: Jul 5, 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
The months with the lowest humidity are January, September, November and December, with an average relative humidity of 80%.
In Port Olry, Vanuatu, during the entire year, the rain falls for 235.3 days and collects up to 1432mm (56.38") of precipitation.
The months with the lowest UV index are January, May through October, with an average maximum UV index of 6.
February is the month with the most rainfall. Rain falls for 22.4 days and accumulates 213mm (8.39") of precipitation.
The months with the highest UV index are February through April, November and December, with an average maximum UV index of 7.
In Port Olry, the average temperatures in March are the highest, with a peak at 28.9°C (84°F) and a low of 25.2°C (77.4°F).
June is the most humid month, with an average relative humidity of 83%.
With an average of 11h and 18min of daylight, June has the shortest days of the year.
July is the month when Port Olry sees the average lowest temperatures, with a high of 25.9°C (78.6°F) and a low of 22.7°C (72.9°F).
With an average of 5.6h of sunshine, July has the least sunshine of the year.
September is the month with the least rainfall. Rain falls for 14 days and accumulates 38mm (1.5") of precipitation.
December has the longest days of the year, with an average of 13h and 0min of daylight.
Port Olry does not utilize Daylight Saving Time (DST). +11 timezone is used over the entire year.
December has the most sunshine of the year, with an average of 10.1h of sunshine.
Average temperature
Port Olry, Vanuatu
The warmest month (with the highest average high temperature) is March (28.9°C).
The month with the lowest average high temperature is July (25.9°C).
The months with the highest average low temperature are February and March (25.2°C).
The coldest month (with the lowest average low temperature) is August (22.3°C).
Average pressure
Port Olry, Vanuatu
- Average pressure in January:
1006.9mbar - Average pressure in February:
1006.3mbar - Average pressure in March:
1008.2mbar - Average pressure in April:
1009.9mbar - Average pressure in May:
1011.6mbar - Average pressure in June:
1012.3mbar
- Average pressure in July:
1012.8mbar - Average pressure in August:
1013.1mbar - Average pressure in September:
1012.9mbar - Average pressure in October:
1011.8mbar - Average pressure in November:
1009.8mbar - Average pressure in December:
1008.1mbar
The month with the highest atmospheric pressure is August (1013.1mbar).
The month with the lowest atmospheric pressure is February (1006.3mbar).
Average wind speed
Port Olry, Vanuatu
- Average wind speed in January:
10.4km/h - Average wind speed in February:
11.1km/h - Average wind speed in March:
10.5km/h - Average wind speed in April:
10.9km/h - Average wind speed in May:
13.6km/h - Average wind speed in June:
14.7km/h
- Average wind speed in July:
15.9km/h - Average wind speed in August:
14.7km/h - Average wind speed in September:
15.2km/h - Average wind speed in October:
13.4km/h - Average wind speed in November:
12.4km/h - Average wind speed in December:
10.6km/h
The windiest month (with the highest average wind speed) is July (15.9km/h).
The calmest month (with the lowest average wind speed) is January (10.4km/h).
Average humidity
Port Olry, Vanuatu
The month with the highest relative humidity is June (83%).
The months with the lowest relative humidity are January, September, November and December (80%).
Average rainfall
Port Olry, Vanuatu
- Average rainfall in January:
174mm - Average rainfall in February:
213mm - Average rainfall in March:
195mm - Average rainfall in April:
195mm - Average rainfall in May:
81mm - Average rainfall in June:
80mm
The wettest month (with the highest rainfall) is February (213mm).
The driest month (with the least rainfall) is September (38mm).
Average rainfall days
Port Olry, Vanuatu
- Average rainfall days in January:
23.9 days - Average rainfall days in February:
22.4 days - Average rainfall days in March:
26.1 days - Average rainfall days in April:
21.8 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
16 days - Average rainfall days in August:
13.7 days - Average rainfall days in September:
14 days - Average rainfall days in October:
18.7 days - Average rainfall days in November:
20.9 days - Average rainfall days in December:
23.2 days
The month with the highest number of rainy days is March (26.1 days).
The month with the least rainy days is August (13.7 days).
Average daylight / Average sunshine
Port Olry, Vanuatu
- Average daylight in January:
12h and 54min - Average daylight in February:
12h and 36min - Average daylight in March:
12h and 12min - Average daylight in April:
11h and 48min - Average daylight in May:
11h and 24min - Average daylight in June:
11h and 18min
- Average daylight in July:
11h and 18min - Average daylight in August:
11h and 36min - Average daylight in September:
12h and 0min - Average daylight in October:
12h and 24min - Average daylight in November:
12h and 48min - Average daylight in December:
13h and 0min
The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 18min).
- Average sunshine in January:
9h and 24min - Average sunshine in February:
9h and 42min - Average sunshine in March:
9h and 18min - Average sunshine in April:
7h and 0min - Average sunshine in May:
6h and 6min - Average sunshine in June:
5h and 48min
- Average sunshine in July:
5h and 36min - Average sunshine in August:
5h and 42min - Average sunshine in September:
7h and 42min - Average sunshine in October:
7h and 30min - Average sunshine in November:
8h and 54min - Average sunshine in December:
10h and 6min
The month with the most sunshine is December (Average sunshine: 10h and 6min).
The month with the least sunshine is July (Average sunshine: 5h and 36min).
Average sunshine days
Port Olry, Vanuatu
- Average sunshine days in January:
5.6 days - Average sunshine days in February:
4.8 days - Average sunshine days in March:
3.6 days - Average sunshine days in April:
6.4 days - Average sunshine days in May:
8.9 days - Average sunshine days in June:
8.8 days
- Average sunshine days in July:
10.5 days - Average sunshine days in August:
12.4 days - Average sunshine days in September:
11.6 days - Average sunshine days in October:
7.6 days - Average sunshine days in November:
7.4 days - Average sunshine days in December:
5.8 days
The month with the most sunshine days is August (12.4 days).
The month with the least sunshine days is March (3.6 days).
Average UV index
Port Olry, Vanuatu
The months with the highest UV index are February, March, April, November and December (UV index 7).
The months with the lowest UV index are January, May, June, July, August, September and October (UV index 6).
Average cloud cover
Port Olry, Vanuatu
The months with the most cloud cover are June, July and October (Cloud cover 45).
The month with the least cloud cover is December (Cloud cover 40).
Average visibility
Port Olry, Vanuatu
The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and March (9km).
