Vitamin D in Malaysia: best months for sun and a travel guide

The best months for vitamin D in Malaysia are July. In July, a full dose of about 1,000 IU takes around 7 minutes at midday for skin type III at age 30, with 7.4 usable sun hours a day. For a beach stay it is too hot from February to April and rainy or stormy from May to June and from August to January.

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Malaysia month by month

Malaysia is rated at its median coastal place, for skin type III at age 30. Click a month for the details.

Month	Rating	Sun window	Peak UV	Full dose, age 30	Full dose, age 65	Afternoon high	Rainy days
January	Bad weather	7.0 h	7.0	8 min	14 min	27°C	19/30
February	Too hot	8.4 h	8.9	6 min	11 min	33°C	18/30
March	Too hot	8.2 h	9.1	6 min	11 min	34°C	15/30
April	Too hot	8.4 h	8.8	6 min	11 min	33°C	27/30
May	Bad weather	7.9 h	8.1	7 min	12 min	31°C	27/30
June	Bad weather	7.2 h	7.2	7 min	14 min	30°C	23/30
July	Excellent	7.4 h	7.3	7 min	14 min	31°C	13/30
August	Bad weather	7.8 h	8.0	7 min	13 min	30°C	23/30
September	Bad weather	7.5 h	8.1	7 min	12 min	29°C	20/30
October	Bad weather	6.9 h	7.7	7 min	13 min	30°C	20/30
November	Bad weather	6.5 h	7.2	7 min	14 min	30°C	26/30
December	Bad weather	6.7 h	7.1	8 min	14 min	30°C	27/30

Sun window is the number of hours a day with UV Index 2.5 or higher. Full dose is the minutes at midday for about 1,000 IU of vitamin D with a quarter of the body bare, for skin type III. Rainy days are days with at least 1 mm out of 30.

Travel guide: why go to Malaysia

Why go

Malaysia gives a mix of beach islands, food-rich cities, rainforest and modern comforts at friendly prices.

Best for

Foodies, divers, families and nature lovers.

What to expect

Hot and humid all year with afternoon storms. The east coast islands (Perhentian, Redang, Tioman) close in the monsoon from November to February, while the west coast (Langkawi, Penang) is wetter around September and October.

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Places in Malaysia

Each place has its own climate, so its best months can differ from the country as a whole.

Langkawi best: Excellent

Duty-free archipelago of beaches, mangroves and a cable car.

Best for families, couples

Best months December to February · Avoid too hot from March to April; rainy or stormy from May to November

An archipelago of 99 islands known for its beaches, rainforest, mountains, mangrove estuaries and unique nature.

George Town best: Excellent

Penang's heritage city of street art and the best street food.

Best for foodies, culture travellers

Best months July · Avoid too hot from February to May; rainy or stormy in June and from August to January

The capital of Penang and hub of Malaysia's second largest metropolitan area, famed for its colonial-era architecture,…

Kuala Lumpur best: Excellent (inland)

Capital of towers, malls and a huge food scene.

Best for city lovers, shoppers

Best months July · Avoid too hot in March; rainy or stormy from April to June and from August to February

The multi-cultural national capital, home of the Petronas Twin Towers

Perhentian Islands best: Excellent

Small islands with clear water, turtles and simple bungalows.

Best for snorkellers, backpackers

Best months February to April · Avoid rainy or stormy from May to January

Glittering jewels off the East Coast still undiscovered by mass tourism

Redang Island best: Excellent

Marine-park island with clear water and coral.

Best for divers, couples, families

Best months February to April, June, July, October · Avoid rainy or stormy in May and from August to September and from November to January

Tioman Island best: Excellent

Jungle-covered island with quiet beaches.

Best for divers, hikers, families

Best months July · Avoid rainy or stormy from August to June

Kota Kinabalu best: Excellent

Borneo's gateway to Mount Kinabalu and island trips.

Best for adventurers, families

Best months February · Avoid rainy or stormy from March to January

Close to tropical islands, lush rain forest and Mount Kinabalu

Sipadan best: Excellent

One of the world's top dive sites, with a strict permit system.

Best for experienced divers

Best months September · Avoid rainy or stormy from October to August

One of the best dive spots in the world

Malacca City best: Excellent

Colonial heritage river town with lots of food.

Best for culture travellers, foodies

Best months July · Avoid rainy or stormy from August to June

Kuching best: Excellent

Cat-themed Borneo city, a base for orangutans and longhouses.

Best for nature lovers, families

Best months July, September · Avoid rainy or stormy in August and from October to June

Capital of Sarawak, and largest city in East Malaysia

Some short descriptions come from Wikivoyage (CC BY-SA 4.0).

Questions about vitamin D in Malaysia

When is the best time to visit Malaysia for vitamin D?

The best months for vitamin D in Malaysia are July. In July, a full dose of about 1,000 IU takes around 7 minutes at midday for skin type III at age 30, with 7.4 usable sun hours a day.

Can you get vitamin D from the sun in Malaysia in November?

Yes, but slowly. In November a full dose takes about 7 minutes at midday for skin type III at age 30, with 6.5 usable hours a day.

How long do I need in the sun in Malaysia?

In July, the best month, about 7 minutes at midday with a quarter of the body bare, for skin type III at age 30; about 14 minutes at age 65. Darker skin needs longer and fair skin burns sooner, so keep sessions short. This is an estimate for planning, not medical advice.

Which months should I avoid in Malaysia?

For a beach stay, avoid the months when it is too hot from February to April and rainy or stormy from May to June and from August to January.

What is the best place in Malaysia for vitamin D?

In July the strongest sun of the places we rate is around Malacca City. Each place has its own rating, so open the place list to compare them.