The answer depends on one’s interest.
If you admire lush greenery and nature, monsoon will be the ideal time for you as the greenery of Meghalaya will be at its best. The waterfalls have a spectacular view during monsoon.
If you are an adventure enthusiast then winters will be best as most water activities are performed in Meghalaya at this time. Moreover rivers like Umngot and Shnongpdeng are clean and ideal for Kayaking, Boating and other water activities.
Meghalaya’s average annual temperature is 17°C.

Sightseeing places for a honeymoon couple in Meghalaya includes –
Cherrapunjee:- Famous for being one of the rainiest places on earth.
Mawsynram.
Ward’s Lake and Umiam Lake.
Shillong Peak and Elephant Falls.
Mawlynnong Village.
Living Root Bridges.
Umngot and Shnongpdeng River.
To know more please read our blog.

Various activities can be done during Meghalaya Honeymoon Tour like:-
Kayaking – Kayaking is done in Dawki River and Umiam Lake.
Trekking – Major spots for trekking include Trekking at Double Decker Bridge, David Scott Trail and Mawryngkhang Scariest Trekking.
Boating – Boating is done at Ward’s Lake, Umiam Lake, Dawki, Shnongpdeng, Mawlyngbna, Krangsuri and other places. You can have the best boating experience at Umngot River in Dawki because of its crystal clear river bed.
Camping – Camping can be done at different camp sites like Cherrapunjee, Mawsynram and Mawlyngbna but the famous camping site is at the bank of Dawki and Shnongpdeng River. Overnight camping here is an awesome experience for adventure lovers.
River Canyoning – It is done in Cherrapunjee.
Caving – Cave lovers can explore Mawsmai Cave, Arwah Cave and Krem Puri Cave which are unique caves of Meghalaya.
Zip Lining – The thrilling zip-lining activity can be performed at Mawkdok Dympep Valley enroute Cherrapunjee.
Snorkeling – Snorkeling can be done in the clear and fresh water of Dawki and Shnongpdeng. Accessories are provided for performing Snorkeling.
Scuba Diving – In Meghalaya, Scuba Diving is available only in Shnongpdeng River. It is a thrilling experience to witness underwater aquatic life.

In Meghalaya you can experience rural life in:-
Kongthong Village – Whistling Village of India.
Umden Village – famous for its Eri Silk production and traditional handlooms like ryndia.
Nongriat Village – Location of Double Decker Living Root Bridge.
Mawlynnong Village – Awarded as the Cleanest Village of Asia in the year 2003.
Shnongpdeng Village known for its clean river and Camping.

Different markets are available for shopping in Meghalaya where one can explore wide range of products like edible items, traditional handicrafts, western outfits etc.
Meghalaya’s popular shopping markets are:
Police Bazaar – Meghalaya Emporium – Glory Plaza – Khasi Emporium
Bara Bazaar (Iewduh)
Laitumkhrah Bazar
Bhutia Market

In Meghalaya restaurants offer different cuisines. Best Chinese Food is available in across restaurants in Meghalaya. Some of the best restaurants are:
City Hut Dhaba, Meghalaya
3 Olives Restaurant
Mango Tree
Eden Restaurant, Meghalaya
Lamee, Sillong

Termed as the Abode of Clouds, Meghalaya is blessed with beautiful lakes and various breathtaking waterfalls which gush down the magnificent hills. The lakes and waterfalls which are worth visiting in Meghalaya are:
LAKES
Wards’ Lake
Umiam Lake
Thadlaskein Lake
WATERFALLS
Seven Sisters Falls
Wei Saw Dong Falls
Elephant Falls
Nohkalikai Falls
Dainthlen Falls

There are many trekking spots in Meghalaya such as:
Double Decker Trek in Nongriat Village
David Scott Trail, Mawphlang to Lad Mawphlang
Mawryngkhang Trek (The Scariest Trek in Meghalaya)
Shnongpdeng Trek

Best Things to Do while on a honeymoon tour can be:-
Camping at Shnongpdeng Riverside
Camping at Mawsynram
Kongthong Village Tour
Mawlynnong Day Tour
Mawlyngbna Day Tour
Kayaking and Boating at Umiam and Dawki
Scuba Diving at Dawki Shnongpdeng
Trekking at the Double Decker Root Bridge
Zip-Lining at Mawkdok Dympep Valley

Meghalaya is a hill station do you should carry warm clothes and during the monsoon it is mostly rainy, so keep raincoats or umbrellas.
You should wear good quality shoes, ideal for trekking as Meghalaya Tour requires trekking at various places and some of the places are slippery during monsoon.

There are various products and items that you can buy from Shillong which includes:
Local Authentic Tribal Spices.
Unique Local Fruits.
Handloom items of Northeast.
Traditional Handicrafts.
Wooden and Bamboo products like small decorative wooden products, furniture and sofa made of bamboo, etc.
Western Fashions outfits etc.