Last updated: August 21, 2025
In December, Port Blair, India, offers a warm tropical climate with an average temperature of 27°C (81°F), peaking at a comfortable 29°C (85°F) and dipping to a mild 24°C (76°F) at night. This month sees 137 mm (5.4 in) of rainfall spread over 14 days, indicating a mix of sunny days and occasional showers, all enveloped in a high humidity level of 78%. Ideal for visitors seeking to embrace both the warmth and vibrant monsoon ambiance, December in Port Blair is a delightful blend of culture and nature.
In December, Port Blair, India enjoys a delightful climate that heralds the onset of cooler temperatures. With a minimum temperature of 24°C (76°F) and an average hovering around 27°C (81°F), it's a comfortable month ideal for outdoor activities. The maximum temperature reaches a pleasant 29°C (85°F), making it an inviting time for beach outings and exploration. Notably, the overall temperature pattern in December mirrors the preceding months, maintaining a steady warmth that characterizes the region throughout the year. This consistency invites visitors to enjoy the beauty of the Andaman Islands without the sweltering heat of summer, ensuring a perfect escape for travelers seeking a tropical getaway.
In December, Port Blair experiences a noteworthy transition in its precipitation patterns, receiving 137 mm (5.4 in) of rain over 14 days. This marks a decline from the heavier rains of the preceding months, such as September's peak of 374 mm (14.7 in), which saw one of the highest rainfall levels of the year. As the region slips further into winter, the number of rainy days decreases, signaling a shift toward drier conditions. The rainfall in December serves as a gentle reminder of the Indian Ocean monsoon's retreat, providing a balanced close to the year after months of intense downpours, particularly in May and June. The steady yet reduced rainfall helps nourish the lush landscapes while paving the way for drier months ahead.
In December, Port Blair experiences a relative humidity of 78%, reflecting a slight decline from the peak levels seen in the preceding months. The trend throughout the year shows an interesting fluctuation, with humidity levels generally peaking during the monsoon months of July and August, which record impressive figures of 84% and 85% respectively. In contrast, the dry season months from October to May exhibit lower humidity levels, with May marking the year’s low at 72%. As the year closes, December maintains a comfortable moisture level, showcasing Port Blair’s tropical charm, while anticipated changes in humidity are always part of the island’s allure.
In December, Port Blair experiences a UV Index of 10, indicating a very high level of ultraviolet radiation, which allows for a slightly extended burn time of 15 minutes. This marks a subtle decline from the previous months, where the index remained predominantly in the extreme category, peaking at 15 in March. Notably, despite the drop in the UV Index, the risk remains significant, emphasizing the need for sun protection when outdoors. As the year closes, it’s clear that the trend in Port Blair shows consistently high UV levels, urging residents and visitors alike to stay vigilant and informed about sun safety. For more details, visit the Port Blair UV Index page.
UV Risk Categories
December in Port Blair, India, welcomes visitors with an abundance of sunshine, boasting 324 hours of bright, cheerful daylight. As the year draws to a close, daylight hours reflect a remarkable consistency, with December offering one of the highest totals since the peak of March, which enjoys 348 hours. This late-year sun bath provides an inviting contrast to the cloudier days of the monsoon season in June and July, when sunshine dipped to 263 hours and 297 hours respectively. Overall, December stands out as a delightful time to explore the stunning landscapes and vibrant culture of the Andaman Islands, perfectly capping off a year that mainly features strong sunlight across the months. Embrace the warmth and charm of this tropical paradise, ensuring that every sun-soaked moment is cherished.
In December, Port Blair enjoys a notable uptick in sunny weather, with a 65% chance of sunshine that makes it one of the brighter months of the year. This is a stark contrast to the rain-soaked summer months, where chances drop to a mere 11% to 17% from June to October. As the year progresses, starting from the rainy season, there's a gradual increase in sunlight, peaking in February with a 70% likelihood. December represents a welcomed respite, allowing residents and visitors alike to enjoy the clear skies and pleasant temperatures after the monsoon's retreat, marking it as an ideal time for outdoor activities and exploration.
In Port Blair, India, December marks the end of the year with a consistent 11 hours of daylight, mirroring the daylight duration experienced in both January and February. Throughout the spring and summer months from March to August, daylight stretches to 12 hours, creating ample opportunities for outdoor activities and exploration. As autumn sets in during October and November, the hours of daylight gradually reduce, returning to the shorter durations of early winter. This gentle ebb and flow of daylight showcases a rhythmic pattern that aligns with the seasonal transitions, inviting both residents and visitors to embrace the unique charm of Port Blair throughout the year.
As December graces Port Blair, the winds pick up to an average speed of 6.1 m/s (14 mph), marking a refreshing transition from the lighter breezes of earlier months. After a gradual decline from the gusty heights of monsoon months—8.2 m/s (18 mph) in July and 7.0 m/s (16 mph) in June—the winds settle into this brisk pace, inviting a pleasant chill to the tropical atmosphere. Compared to the lower speeds of 2.7 m/s (6 mph) recorded in April, December offers a lively yet comfortable wind experience, making it an ideal time for outdoor activities. As this month unfolds, the wind continues a fluctuating dance, bridging the quieter months of spring with the invigorating currents of winter, ensuring that Port Blair remains a desirable escape for both locals and travelers alike.
Weather in Port Blair varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Port Blair, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather remains warm with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 29°C (85°F), averaging around 27°C (81°F). However, this month also sees significant rainfall, with a total precipitation of 137 mm (5.4 in) across 14 days and humidity levels at 78%. In contrast, January maintains a similar temperature range, with a minimum of 24°C (76°F) and a maximum of 29°C (84°F), averaging slightly lower at 27°C (80°F). Notably, January experiences less rainfall, totaling 72 mm (2.8 in) over 10 days and slightly lower humidity at 77%. For more detailed information, you can check Port Blair weather in January.
In December, Port Blair experiences warm temperatures, with a minimum of 24°C (76°F) and an average of 27°C (81°F), peaking at 29°C (85°F). However, this month also sees significant rainfall, accumulating around 137 mm (5.4 in) over 14 days, leading to a relatively high humidity level of 78%. In contrast, February maintains similar temperature ranges—minimum 24°C (76°F), average 27°C (81°F), and maximum 29°C (84°F)—but with drastically reduced precipitation, totaling just 15 mm (0.6 in) across only 3 days and slightly higher humidity at 79%. For more detailed information about February weather, you can check Port Blair weather in February.
In December, the weather is generally warm, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 29°C (85°F) and an average of 27°C (81°F). This month also experiences significant rainfall, with 137 mm (5.4 in) of precipitation spread over 14 days and a humidity level of 78%. In contrast, March sees slightly warmer temperatures, with a minimum of 25°C (78°F) and an average of 28°C (82°F), but it remains similar at a maximum of 29°C (85°F). Notably, March is much drier, with only 9 mm (0.3 in) of precipitation occurring over just 3 days, along with a slightly higher humidity of 81%. For more details on how March weather unfolds in Port Blair, visit Port Blair weather in March.
In December, temperatures in Port Blair generally range from a minimum of 24°C (76°F) to a maximum of 29°C (85°F), with an average of 27°C (81°F). The month experiences significant precipitation, totaling 137 mm (5.4 in) over approximately 14 rainy days, resulting in a humidity level of about 78%. In contrast, April sees slightly warmer conditions, with minimum temperatures at 25°C (78°F) and maximum temperatures reaching 30°C (87°F), averaging around 28°C (83°F). Precipitation decreases to 79 mm (3.1 in) over 11 days, bringing a marginally lower humidity of 77%. For more details, you can check Port Blair weather in April.
In December, the weather is generally warm with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 29°C (85°F), with an average of 27°C (81°F). This month sees significant rainfall, with about 137 mm (5.4 in) of precipitation spread over 14 days and humidity levels at 78%. In contrast, May experiences slightly warmer conditions, with temperatures between 26°C (79°F) and 30°C (87°F), averaging 28°C (83°F). However, May is also much wetter, recording 280 mm (11.0 in) of rainfall over 26 days, while the humidity is slightly lower at 72%. For more details on the weather in May, check out Port Blair weather in May.
December and June present contrasting weather patterns. In December, temperatures range from a minimum of 24°C (76°F) to a maximum of 29°C (85°F), with an average of 27°C (81°F). The month experiences moderate precipitation of 137 mm (5.4 in) over about 14 days, accompanied by a humidity level of 78%. In contrast, June is slightly warmer, with minimum temperatures of 26°C (79°F) and an average of 28°C (82°F), peaking at 30°C (85°F). However, it sees significantly higher rainfall, totaling 335 mm (13.2 in) across 27 days and a humidity level of 80%. For more detailed weather insights, you can check Port Blair weather in June.
In December, the weather features a warm temperature range with a minimum of 24°C (76°F) and an average of 27°C (81°F), with maximum temperatures reaching 29°C (85°F). There is a moderate rainfall of 137 mm (5.4 in) spread over 14 days, contributing to a humidity level of 78%. In contrast, July exhibits slightly higher temperatures with a minimum of 26°C (79°F) and an average of 28°C (82°F), while still peaking at 29°C (85°F). However, July is notably wetter, receiving 275 mm (10.8 in) of rain across 27 days, resulting in increased humidity at 84%. For more details, check out Port Blair weather in July.
In comparing the weather between December and August, both months boast similar average temperatures, with December experiencing a minimum of 24°C and a maximum of 29°C, while August has a slightly warmer minimum of 25°C. However, August is notably wetter, receiving a staggering 334 mm of precipitation over 28 days compared to December's 137 mm over 14 days. This results in higher humidity levels in August at 85%, compared to December's 78%. For more specific insights into the August weather in Port Blair, you can check Port Blair weather in August.
In comparing the weather between December and September, both months exhibit similar average temperatures, with December's range from a minimum of 24°C (76°F) to a maximum of 29°C (85°F), and September slightly warmer with a minimum of 25°C (78°F) and a maximum of 29°C (84°F). However, September is significantly wetter, receiving 374 mm (14.7 in) of precipitation over 27 days, compared to December's 137 mm (5.4 in) spread across 14 days. Additionally, December experiences slightly lower humidity at 78% versus September's 82%. For a detailed look at September weather, see Port Blair weather in September.
In comparing the weather between December and October, both months exhibit relatively similar temperature ranges, with average highs around 27°C (81°F) and lows of 24°C (76°F) in December, compared to a minimum of 25°C (78°F) and a maximum of 29°C (84°F) in October. However, October experiences significantly more rainfall, with a total precipitation of 305 mm (12.0 in) over 28 days, compared to December's 137 mm (5.4 in) over just 14 days. The humidity levels are also quite comparable, with October at 79% and December slightly lower at 78%. For more detailed insights on October weather, you can visit Port Blair weather in October.
December and November in Port Blair exhibit similar temperature ranges, with December's minimum at 24°C (76°F) and an average of 27°C (81°F), slightly cooler than November's 25°C (78°F) minimum and similar average of 27°C (82°F). Both months experience a maximum temperature of 29°C (85°F). However, December sees a decrease in precipitation, recording 137 mm (5.4 in) over 14 days compared to November's 195 mm (7.7 in) over 19 days, highlighting a drier spell as the year comes to a close. Humidity levels also remain comparable, with December at 78% and November at 79%. For more detailed information, check out Port Blair weather in November.
December in Port Blair ushers in a more comfortable and pleasant atmosphere, characterized by mild temperatures and increased humidity. Unlike the sweltering summer months, the average temperatures hover around 27°C, offering a refreshing escape from the heat. Although December does see about 14 days of rain, with a total precipitation of 137 mm, this adds to the island's lush greenery rather than detracts from outdoor enjoyment. Travelers can experience the beauty of the Andaman and Nicobar Islands amidst the vibrant flora and the ocean's allure. For a deeper dive into what to expect throughout the year, check out Port Blair Climate.