Nagapattinam climate
Nagapattinam (Tamil Nadu, India) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 28 °C83 °F, and about 1,051 mm41 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Nagapattinam climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2781 | 2475 | 2578 | 200.8 |
| Feb | 2883 | 2476 | 2679 | 100.4 |
| Mar | 3087 | 2678 | 2883 | 230.9 |
| Apr | 3289 | 2882 | 3086 | 411.6 |
| May | 3290 | 2883 | 3087 | 843.3 |
| Jun | 3290 | 2882 | 3086 | 491.9 |
| Jul | 3290 | 2781 | 3085 | 612.4 |
| Aug | 3289 | 2780 | 2985 | 823.2 |
| Sep | 3188 | 2780 | 2984 | 963.8 |
| Oct | 3086 | 2780 | 2883 | 1987.8 |
| Nov | 2883 | 2678 | 2780 | 2529.9 |
| Dec | 2781 | 2576 | 2679 | 1375.4 |
| Year | 3290 | 2475 | 2883 | 1,05141 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 77% | 45% | 5.0 | 11:33 |
| Feb | 74% | 38% | 5.9 | 11:46 |
| Mar | 73% | 38% | 6.3 | 12:03 |
| Apr | 74% | 48% | 6.3 | 12:21 |
| May | 74% | 58% | 6.0 | 12:37 |
| Jun | 71% | 70% | 5.8 | 12:45 |
| Jul | 70% | 76% | 5.6 | 12:42 |
| Aug | 72% | 73% | 5.7 | 12:28 |
| Sep | 76% | 70% | 5.6 | 12:10 |
| Oct | 79% | 69% | 4.8 | 11:52 |
| Nov | 82% | 71% | 4.1 | 11:37 |
| Dec | 81% | 61% | 4.1 | 11:30 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Nagapattinam is like
The warmest month is May, with an average high of 32 °C90 °F and a low of 28 °C83 °F. The coldest is January, when highs average 27 °C81 °F and lows 24 °C75 °F. Seasonal differences are small — just 4.8 °C8.7 °F between the warmest and the coolest month.
It is wet, with about 1,051 mm41 in of precipitation per year. The wettest three-month stretch is October–December, which brings 56% of the annual total. Months with less than 20 mm0.8 in on average: January and February. The wettest month is November (252 mm9.9 in), the driest is February (10 mm0.4 in).
Relative humidity ranges from 70% in July to 82% in November. The clearest skies (lowest average cloud amount, 38%) are typical of March. Average wind speed near the ground ranges from 12 km/h (8 mph) in March to 18 km/h (11 mph) in June. Daylight lasts from about 11.5 hours in December to 12.7 hours in June.
Best time to visit Nagapattinam
Based on these averages, the most comfortable months for sightseeing and outdoor activities are January and February: average highs of 27 °C81 °F to 28 °C83 °F with 10 mm0.4 in to 20 mm0.8 in of precipitation per month.
The most challenging month is November, which is very wet (252 mm9.9 in) and humid (82% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Nagapattinam
- Wetter months (September–December) — highs 2781 to 31 °C88 °F, lows 2576 to 27 °C80 °F, about 171 mm6.7 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
- Drier months (January–August) — highs 2781 to 32 °C90 °F, lows 2475 to 28 °C83 °F, about 46 mm1.8 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Nagapattinam compares
Compared with Thanjavur, about 77 km to the west, Nagapattinam has practically the same average temperature and receives a similar amount of precipitation. The difference is largest in December (1.7 °C3 °F warmer).
Of the 382 places in India covered by World Climates, Nagapattinam is the 5th warmest by annual mean temperature and the 158th wettest by annual precipitation. See all of them on the India climate page.
Places in other countries with the most similar temperature and rainfall pattern: Tuy Hòa (Vietnam, Aw), Ninh Hòa (Vietnam, Aw) and Phan Rang-Tháp Chàm (Vietnam, Aw).
Nearby places
- Thanjavur 77 km · 28 °C83 °F · 1,011 mm40 in
- Neyveli 101 km · 28 °C83 °F · 1,044 mm41 in
- Pudukkottai 120 km · 28 °C82 °F · 844 mm33 in
- Jaffna 123 km · 28 °C83 °F · 1,143 mm45 in
- Tiruchirappalli 125 km · 28 °C83 °F · 830 mm33 in
- Puducherry 130 km · 28 °C83 °F · 1,153 mm45 in
- Karaikkudi 141 km · 28 °C83 °F · 915 mm36 in
- Kallakurichi 145 km · 28 °C82 °F · 874 mm34 in
Frequently asked questions
What is the warmest month in Nagapattinam?
May is the warmest month in Nagapattinam, with an average high of 32 °C (90 °F) and an average low of 28 °C (83 °F).
What is the coldest month in Nagapattinam?
January is the coldest month, with an average high of 27 °C (81 °F) and an average low of 24 °C (75 °F).
When does it rain the most in Nagapattinam?
November is the wettest month with about 252 mm (9.9 in) of precipitation; February is the driest with about 10 mm (0.4 in).
What is the best time to visit Nagapattinam?
Judging by long-term averages, the most comfortable months are January and February.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.