St. Thomas Cathedral Basilica, Chennai Church

Historic basilica built over St. Thomas's purported tomb

Basilica in Chennai built over the traditional tomb of St Thomas the Apostle. Pilgrims and visitors attend services, view colonial-era architecture and visit the shrine.

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St. Thomas Cathedral Basilica, Chennai at a Glance#

Address: Santhome (St. Thomas) Cathedral Basilica, Santhome High Road, Mylapore, Chennai, Tamil Nadu 600004, India

Website: https://www.santhomechurch.in/

Hours: Daily (visit times vary; services regularly held)

Admission: Free (no admission fee; donations welcome)

About St. Thomas Cathedral Basilica, Chennai#

St. Thomas Cathedral Basilica (commonly called San Thome Basilica) is a Roman Catholic basilica in the Santhome neighbourhood of Chennai, India, built over the traditional tomb of the Apostle Thomas. The first church on the site was established by the Portuguese in the early 16th century and the present Gothic-revival structure dates from the late 19th century.

The interior is dominated by the main altar and the tomb-chamber beneath it, and the church attracts both pilgrims and visitors interested in Christian history in India. Architectural highlights include Gothic-revival detailing, stained glass and a cruciform plan typical of 19th-century colonial churches.

Portuguese builders established the original shrine in the early 1500s to mark the reputed burial site of St. Thomas; the building on the present footprint was substantially rebuilt by colonial-era authorities in the late 19th century and has since served as the principal church for the local Catholic archdiocese.

The basilica stands in the Santhome district along Chennai’s eastern shoreline, a short walk from Marina Beach and within the urban fabric of the city. It is easily reached from central Chennai and is a prominent landmark in the coastal neighbourhood.

  • Tomb of St. Thomas: Contains the traditional tomb of the Apostle St. Thomas beneath the main altar, a focus for pilgrims and local devotion.

How to Get to St. Thomas Cathedral Basilica, Chennai#

Santhome Basilica (St. Thomas Cathedral Basilica) is in the Santhome/Mylapore area on Chennai’s seafront road (Kamarajar Salai). It is most commonly reached by city buses or taxis from across Chennai; from Chennai’s central areas allow a 20-40 minute taxi ride depending on traffic. The basilica is a short walk from the seafront and local bus stops serving Mylapore/Santhome.

Tips for Visiting St. Thomas Cathedral Basilica, Chennai#

  • Check mass and visiting times before you go-the basilica is an active place of worship and some areas are closed during services, so early morning on non‑service days is usually quieter for sightseeing.
  • Don't miss the small museum and the reliquary area inside the basilica where relics associated with St. Thomas are displayed; these are located within the church complex rather than outside and can be overlooked by passers‑by.

Best Time to Visit St. Thomas Cathedral Basilica, Chennai#

November through February is the best time to visit for cooler, drier conditions and more comfortable sightseeing.

Cool, dry season
Nov-Feb · 24-30°C
Most comfortable time with lower humidity; popular for pilgrims and general visitors-major feast days can draw larger crowds.
Hot pre-monsoon
Mar-May · 28-38°C
Very hot and humid; daytime visits can be uncomfortable and attendance may dip during the hottest months.
Monsoon
Jun-Sep · 25-32°C
Heavy rains and high humidity can affect travel and outdoor movement around the basilica; indoor services continue but plan for wet conditions.

Weather & Climate near St. Thomas Cathedral Basilica, Chennai#

Climate

St. Thomas Cathedral Basilica, Chennai's climate is classified as Tropical Savanna - Tropical Savanna climate with very hot summers (peaking in May) and hot winters (coldest in January). Temperatures range from 21°C to 38°C. Abundant rainfall (1247 mm/year), wettest in November with a pronounced dry season.

Air Quality: AQI 95 Moderate
Best Time to Visit
FebruaryJanuaryMarch
Temperature & Rainfall
Temperature Range
43°
Warmest Month
17°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Ideal 21° - 29° 25° 24 mm some cloud 77% 2.1 m/s 1.7 very high 11.3h
February Ideal 22° - 31° 27° 9 mm mostly sunny 71% 2.6 m/s 2.1 extreme 11.6h
March Excellent 24° - 33° 31° 3 mm mostly sunny 66% 2.5 m/s 2.3 extreme 11.9h
April Excellent 26° - 35° 36° 11 mm mostly sunny 66% 2.8 m/s 2.4 extreme 12.3h
May Very Good 28° - 38° 40° 44 mm partly cloudy 64% 3.2 m/s 2.2 extreme 12.6h
June Good 27° - 37° 39° 54 mm overcast 64% 3.7 m/s 2.0 extreme 12.8h
July Good 26° - 35° 36° 99 mm overcast 68% 3.5 m/s 2.0 very high 12.7h
August Good 26° - 35° 36° 134 mm overcast 72% 3.5 m/s 2.0 extreme 12.4h
September Good 25° - 34° 37° 124 mm overcast 77% 2.7 m/s 2.0 extreme 12.1h
October Good 25° - 32° 33° 250 mm partly cloudy 80% 1.9 m/s 1.8 very high 11.7h
November Good 23° - 30° 27° 347 mm partly cloudy 82% 2.3 m/s 1.5 very high 11.4h
December Very Good 22° - 29° 26° 148 mm partly cloudy 80% 2.2 m/s 1.4 high 11.2h

Nearby Attractions to St. Thomas Cathedral Basilica, Chennai#