Weather in Jaffna in March

A good month. March is a solid month to be in Jaffna. Highs average 30.6 °C, lows 26.4 °C, and rain falls on 6 days — nothing in the month is working against you.

March ranks 5 of 12 in Jaffna: past the worst of the year but short of January, which is the month to book if the dates are open.

Rain falls on only 6 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 30.6 °C days and 26.4 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 20 days top 30 °C, making the heat continuous rather than occasional; the day barely swings — 4.2 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest March day reached 33.9 °C and the coldest night fell to 23.1 °C, and the wettest single day dropped 31 mm — roughly 79% of the month's rain in one day.

This is the volatile part. March rainfall has ranged from 0 mm to 188 mm across the twenty years measured — a 188 mm spread around an average of 39 mm. The average is real but almost no individual March looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 13.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 73%.

How March sits in the year

Temperatures hold steady either side: 28.5 °C in February, 30.6 here, 31.5 in April. Nothing about the timing within the month matters much. Rain is the thing that moves: April brings 7 days more of it, so the earlier half of a flexible trip is the safer half.

Daylight in March

Jaffna sits close enough to the equator that daylight barely moves all year — 12.1 hours in March, against a range of just 1.1 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

Sea temperature

The sea sits at about 28.7 °C in March — warm enough that the water offers no relief from the heat. This is the warmest the water gets all year.

How busy it gets

Shoulder. The value months — prices ease off and you get the place closer to itself.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

March in Jaffna versus nearby

If Jaffna is one option among several, the nearby comparison is worth making. Trincomalee is close enough to be a coin toss — within a degree on temperature, 4 days more rain. Madurai is the weaker option in March — 7 °C warmer, 2 days less rain.

So: March works, with January the better month by 15 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Jaffna

See all twelve months in Jaffna, or where else to go in March.