A winter Golden Triangle tour misses Delhi's dengue peak. The malaria advice still applies.

Yes, and how many depends on the month. Delhi's dengue climbs after the monsoon and has peaked in October or November, so the December–March touring season comes after it. The CDC recommends prescription malaria medicine for travel throughout India below 6,500 feet and names New Delhi, so even a short Delhi–Agra–Jaipur loop starts with a travel-clinic visit.

New Delhi is named in the malaria advice

The CDC's India page places malaria transmission "Throughout the country, including the cities of Bombay (Mumbai) and New Delhi (the capital)," with "No malaria transmission in areas >2,000 m (>6,500 ft) elevation." Delhi, Agra, Jaipur, Ranthambore and Bharatpur all sit far below that line.

Yellow fever vaccine isn't needed when you fly from the US, though India requires proof from travelers 9 months or older arriving from countries it lists as having yellow fever risk. CDC also warns of counterfeit ABHAYRAB rabies vaccine reported in Delhi, so get any rabies shots from a reliable source.

Delhi's dengue season, and why winter misses it

Nationally, the World Health Organization counted 23,470 dengue cases in September 2026, 72% more than in August. In Delhi, cases climb through September and October. October was the city's worst month in 2025, and municipal data reported by ETV Bharat showed 1,136 cases and 2 deaths by early November that year. Some seasons run later. In 2021, press reports put about 5,600 of Delhi's more than 7,100 cases in November alone. We found no 2026 dengue figures for Agra or Jaipur.

The touring season runs roughly October to March, with December to February cool and dry, so an October or early-November trip can overlap the tail of the peak. The CDC also rates chikungunya risk in India as elevated and lists Zika, both spread by the same day-biting mosquito as dengue, so pregnant travelers should talk to a healthcare provider before the trip.

Forts by day, rooftops at dusk

Aedes bite in daylight, with peaks after sunrise and in the late afternoon. Put repellent on over sunscreen before the forts and bazaars; our dengue & Zika routine has the schedule. On a cool-season tour the evening is the likelier exposure, at rooftop restaurants in Old Delhi and Jaipur, at sunset over the Yamuna from Mehtab Bagh opposite the Taj Mahal and in hotel gardens, and open drains and standing water tend to make local hotspots. Reapply before sunset, wear long sleeves and trousers after dark, and sleep in an air-conditioned or screened room.

Side trips are rural and wetter. Ranthambore's morning and evening safari drives and Keoladeo National Park, the wetland bird sanctuary at Bharatpur on the Agra–Jaipur route, carry the same routine. The CDC also lists sand flies, which spread leishmaniasis and bite from dusk to dawn, and ticks, so check for ticks after a day outdoors.

Where you're going

Adding Varanasi or Goa? The India briefing covers the rest of the country, and our Kerala briefing covers the backwaters.

What travelers report

Paraphrased from TripAdvisor forum threads and linked so you can read them in full. None is dated, two are about June and September rather than the winter season, and forum views on malaria pills don't replace the CDC's recommendation and a clinic visit.

• Delhi and Agra

  Asked about malaria on a short Delhi and Agra trip, a forum destination expert judged the risk low, suggested repellent and covered clothing, and called pills a personal choice to discuss with a doctor. This differs from CDC, which recommends malaria medicine for travel throughout India, New Delhi included. TripAdvisor ↗

• Golden Triangle (Delhi, Agra, Jaipur) · June

  In a thread about malaria risk on a June Golden Triangle trip, a poster said there are mosquitoes in every season and no Indian city is ever mosquito-free, but that there are fewer in the hot summer because little stagnant water is left for breeding. TripAdvisor ↗

• New Delhi · September

  In a thread about mosquitoes in Delhi in September, a poster warned that dengue had been very active in Delhi that year, regardless of how many mosquitoes a visitor might notice. TripAdvisor ↗

One more rule outlasts the trip. Any fever during your trip or in the year after it means a doctor visit, right away, and you tell them you were in India. Dengue usually shows up within two weeks; malaria can take much longer.

Traveler questions