Whereason

Southeast Asia · Nature travel

Best time to visit Lake Toba

Mid Jan–Early Mar, Mid May–Early Aug is the best time to visit. During this period, the average daytime high is 25.4°C, with 6.8 rainy days per 10 days.

View on the globe
Scenery of Lake Toba
Photo: Bisajunisa (CC BY-SA 4.0, Wikimedia Commons)

Season calendar

Conditions vary little through the year (a 11.2-point range). Choose dates that suit your plans rather than relying on the color band.

Lake Toba season score, from early January through late December.Early Jan: Okay (season score 56.7)Mid Jan: Good (season score 57.4)Late Jan: Good (season score 64.8)Early Feb: Good (season score 68.6)Mid Feb: Good (season score 68.3)Late Feb: Good (season score 61.8)Early Mar: Good (season score 60.6)Mid Mar: Okay (season score 57.0)Late Mar: Okay (season score 50.4)Early Apr: Okay (season score 46.6)Mid Apr: Okay (season score 52.7)Late Apr: Okay (season score 45.1)Early May: Okay (season score 47.5)Mid May: Good (season score 58.5)Late May: Good (season score 63.1)Early Jun: Good (season score 60.6)Mid Jun: Good (season score 65.5)Late Jun: Good (season score 64.4)Early Jul: Good (season score 59.5)Mid Jul: Good (season score 63.4)Late Jul: Good (season score 59.1)Early Aug: Good (season score 58.5)Mid Aug: Okay (season score 47.5)Late Aug: Okay (season score 44.0)Early Sep: Okay (season score 45.5)Mid Sep: Okay (season score 46.4)Late Sep: Fair (season score 39.7)Early Oct: Fair (season score 39.7)Mid Oct: Fair (season score 37.6)Late Oct: Fair (season score 36.8)Early Nov: Fair (season score 33.5)Mid Nov: Fair (season score 31.4)Late Nov: Fair (season score 31.9)Early Dec: Fair (season score 37.4)Mid Dec: Fair (season score 39.6)Late Dec: Okay (season score 48.9)JanFebMarAprMayJunJulAugSepOctNovDec
AvoidOff-seasonFairOkayGoodGreatBest

Japan MOFA travel advice

No Japan MOFA travel advisory is in effect for this destination.

View original advisory (Japanese)

Climate and season score by month

MonthLevelDaytime highRainy days
(per 10 days)		Cloud cover
JanuaryGood25.2°C7.286.2%
FebruaryGood25.9°C6.482.0%
MarchOkay26.1°C7.483.8%
AprilOkay26.2°C8.288.6%
MayOkay25.9°C7.287.4%
JuneGood25.1°C6.885.2%
JulyGood24.9°C6.886.2%
AugustOkay25.0°C7.989.8%
SeptemberOkay25.2°C8.492.0%
OctoberFair25.3°C8.993.2%
NovemberFair25.0°C9.393.8%
DecemberFair24.9°C8.890.7%

Questions and answers

When is the best time to visit Lake Toba?
Mid Jan–Early Mar, Mid May–Early Aug. During this period, the average daytime high is 25.4°C, with 6.8 rainy days per 10 days. Conditions vary little through the year, so any season works well.
When should I avoid visiting Lake Toba?
Late Sep–Mid Dec is the least favorable time of year. Then, the average daytime high is 25.1°C, with 9.1 rainy days per 10 days.
What is the rainiest time of year in Lake Toba?
October, November, December, with about 9.3 rainy days per 10 days at the peak.

How the score works

The season score is a relative 0–100 measure of how suitable each time of year is for travel at this destination, grouped into seven levels. It combines climate-normal trends in temperature, rain, cloud cover, and other conditions.

Data: Copernicus ERA5, NASA POWER, NOAA GHCN-Daily, OISST, IBTrACS, and Natural Earth.

These are historical climate-normal trends, not a weather forecast.