Weather in Trivandrum

Planning your day in Trivandrum? Check out the latest weather updates and forecasts in this section.

The climate in Trivandrum, located in India, is characterized as tropical. High temperatures persist here year-round, with monthly averages ranging from 26°C to 28.4°C. This means travellers should expect warm and humid weather at any time of the year.

Two main seasons can be distinguished in Trivandrum. The dry season typically falls in January and February, when rainfall is minimal (about 1 mm per month) and the number of rainy days is low. From March, rainfall gradually increases, and a distinct rainy season sets in from May to November. During this period, precipitation increases significantly; the peak occurs in May (11 mm), while June is also a very wet month (8 mm of rainfall and up to 29 rainy days). Other months of the rainy season, such as October (9 mm) and November (8 mm), are also characterized by significant rainfall. December is a transitional month with decreasing precipitation.

Despite the changing rainy seasons, air temperature in Trivandrum remains relatively stable throughout the year, without drastic fluctuations. This makes the city attractive to visit in various months; however, the high humidity and likelihood of rain should be taken into account, especially from May to November.

The temperature regime in Trivandrum is notably stable throughout the year, which is typical for an equatorial climate. The annual range of average temperatures is very narrow: from 26.0°C in August to 28.4°C in April. This means it is practically always warm in Trivandrum. The hottest months are March and April, when the average temperature holds at 28.2-28.4°C, and maximum daytime values can reach 31.0-31.3°C. The "coolest" months, if one can say so in tropical conditions, are considered to be July and August, with an average temperature of about 26.0-26.1°C.

The summer period, especially from March to May, is characterized by hot and rather humid weather. Daytime temperatures during this time consistently exceed 30°C, while nights remain very warm, with minimum values around 25-25.8°C. Winter months, such as December and January, bring slight relief from the heat, but the weather remains very warm and comfortable. The average temperature during this period is 26.5-26.7°C, with the air warming up to 29-30°C during the day and cooling down to 23.5-23.9°C at night. Daily temperature fluctuations in Trivandrum are generally small; usually, the difference between the daytime maximum and nighttime minimum is between 3 to 7 degrees Celsius, ensuring a pleasant temperature even after sunset.

Trivandrum observes a distinct seasonality in the distribution of precipitation throughout the year. The city experiences both a clear dry season and a prolonged rainy season. Precipitation here falls exclusively as rain, which is characteristic of the tropical climate of India; snow is not observed in this region.

The dry season in Trivandrum usually falls in January and February. During these months, rainfall is minimal – only about 1 mm in each, while the number of rainy days does not exceed six. This makes the beginning of the year the driest period, ideal for those who prefer to avoid rain. From March, a gradual increase begins in both the amount of precipitation (2 mm) and the number of rainy days (14 days).

The rainy season gains strength in April (5 mm of precipitation, 23 rainy days) and continues from May to November. May is the month with the highest average rainfall, reaching 11 mm, with 27 rainy days. It is followed in intensity by October with 9 mm and also 27 rainy days. In terms of rain frequency, June stands out particularly, when it rains on average 29 days out of 30, although the total amount of precipitation (8 mm) is slightly less than in May or October. July (7 mm, 27 days), August (8 mm, 23 days), September (8 mm, 25 days), and November (8 mm, 22 days) are also characterized by a high frequency of rain. December (4 mm, 11 rainy days) is a transitional month, marking a gradual decrease in precipitation before the onset of the dry season.

The nature of the rains in Trivandrum during the wet season can vary. Given that monthly rainfall volumes are distributed over a large number of rainy days, these can be either short but intense tropical downpours or periods with more moderate or prolonged rains. Travellers planning a trip from May to November should be prepared for frequent precipitation.

When planning a trip to Trivandrum, it is important to choose your wardrobe correctly, considering its tropical climate with high temperatures and humidity year-round. The basis of your luggage should be light, breathable clothing made from natural fabrics such as cotton or linen. T-shirts, loose blouses, shorts, skirts, and light trousers will be most comfortable. Since the temperature here rarely drops below 23°C even at night, warm clothing is unlikely to be needed. However, a light cardigan or shawl may come in handy in air-conditioned rooms or during evening walks, especially from December to February when nights can be slightly cooler.

A key factor when packing is the seasonality of rainfall. If your trip falls between May and November, which is considered the rainy season (with particularly intense precipitation from May to October), be sure to take a compact umbrella or a light raincoat. Quick-drying clothes and shoes will also be useful during this time, as the number of rainy days is very high – for example, in June, it can rain almost daily. In the dry season, from January to February, precipitation is minimal, so the main focus should be on sun protection: a hat, sunglasses, and high SPF cream are mandatory. Regardless of the season, comfortable walking shoes – sandals or light sneakers – will be your best companion for exploring the city.

Do not forget about such important essentials as insect repellent, especially if you plan to spend time outdoors or in the evening when humidity promotes mosquito activity. A power adapter, if it differs from the one used in India, and a portable charger may also prove useful. And, of course, don't forget swimwear if you plan to visit local beaches or the hotel pool.