In India, the Geminids peak at dinner time

The International Meteor Organization’s calendar for 2026 puts the maximum of the Geminid meteor shower at 14:00 Universal Time on 14 December. In Indian Standard Time that is 7:30 in the evening. Over Delhi at that moment the shower’s radiant, the point its meteors seem to fly out from, is only about 6 degrees above the horizon, and a crescent Moon is still up.

Most guides, including NASA’s summary page, give the peak as the night of 13 to 14 December. That is sound advice for North America, where the hours before dawn on the 14th come only a few hours before the maximum. In India those same hours come around 15 hours before it. We calculated the sky for eleven Indian cities, and the result is a different plan.

A broad peak, and which part of it India gets

The peak of a meteor shower is the moment Earth passes through the densest part of a stream of dust. Seeing it depends on three other things: whether the radiant is high, whether the Moon is out of the way, and whether your sky is dark. At the predicted Geminid maximum, India has none of the three.

The saving grace is that the Geminids do not peak sharply. The IMO describes a broad maximum, with the rate at 100 or more “over roughly 10–12 hours.” If that span is roughly centered on 7:30 pm, it runs from about 1:30 in the afternoon to about 1:30 the next morning. Most of it is wasted on daylight and a low radiant. The end of it is not: the Moon sets around 10 pm, the radiant is by then more than 30 degrees up, and it keeps climbing.

Nothing guarantees the shower will keep to the prediction. The IMO notes that the reliably reported maxima of the past two decades fall between solar longitudes 261.5° and 262.4°, which this year means 2:30 am to 11:30 pm IST on 14 December. An early maximum would favor the small hours of the 14th. A late one would land right in the window we recommend. The calendar adds one more detail in favor of later hours: in most years, a larger share of bright Geminids arrives towards the end of the main maximum.

The Moon, city by city

The Moon will be about a quarter lit at the predicted maximum, enough to wash out the fainter meteors while it is up. On the 14th it sets later than on the 13th, by nearly an hour. These are the times to plan around.

How many meteors you will actually see

The headline figure for the Geminids is a zenithal hourly rate, or ZHR, of 150. Nobody counts 150 an hour from a city. ZHR is a standardized number that assumes the radiant is directly overhead and that the sky is dark enough to show stars down to magnitude 6.5, about as faint as the unaided eye can reach.

To turn it into something you might see, multiply by the sine of the radiant’s height, then divide by the shower’s population index, r, once for each magnitude your sky falls short of 6.5. The IMO gives r = 2.6 for the Geminids, so each magnitude you lose to light pollution divides the count by 2.6. Here is the result at midnight on the 14th, using a rate between 100 and 150:

The sky labels are approximate, and these are model figures rather than a forecast; real counts depend on haze, your view of the horizon and how long your eyes have adapted. But the shape of the table is the useful part. Moving from a bright city to the countryside multiplies your count nearly seven times, far more than picking the better of two nights. The loss of the dark sky costs observers more than any quirk of timing.

If Sunday night suits you better

The night of 13 December is not a bad choice. The Moon sets earlier, from about 8:10 pm in Guwahati to about 9:40 pm in Mumbai, and the radiant is above 30 degrees by roughly 9 to 10 pm. It also falls before a working Monday rather than after one. What it gives up is proximity: if the maximum arrives on schedule, the darkest hours of that night come well before the rate reaches its 100-plus plateau. If you can only go out once and you have a dark site, choose Monday. If you can manage both, Sunday night also covers you against cloud and against an early maximum.

A shower that came from a rock

Most major meteor showers are left behind by comets. The Geminids are the odd one out. NASA lists their source as 3200 Phaethon, which it describes as “an asteroid or a possible ‘rock comet.’” The meteors meet the atmosphere at about 35 kilometers per second, according to the IMO, and the shower is known for bright meteors and fireballs.

On the night

• Look about halfway up the sky rather than straight at Gemini. Meteors appear anywhere, and those near the radiant have short trails.
• Give your eyes at least 20 minutes in the dark, and keep your phone off or dimmed. One bright screen resets much of the adaptation.
• Plan for the season. Over the northern plains, December brings cold nights and often fog or haze, so check the forecast for both nights before choosing.

How we worked this out

The peak time, the radiant position (right ascension 112°, declination +33°), the rate and the population index all come from the IMO’s 2026 calendar. Moonset, radiant height and darkness times are our own calculations using the open-source Astronomy Engine library (version 2.1.19), for the center of each city. Times are rounded to the minute and may differ slightly for your exact location. The meteor counts use the standard ZHR adjustment described above.

Sources

• International Meteor Organization: Meteor Shower Calendar 2026 (PDF)
• NASA Science: Geminids
• Astronomy Engine, open-source astronomy calculation library