Sarnia, Ontario, Canada: What to pack, what to wear, and when to go [2022]

This article contains affiliate links to Amazon and other vendors. We may earn commission from purchases made through these links.

Traveling to Sarnia, Ontario, Canada? If you're planning to go to Sarnia, I've got some important information about when to go, what to wear, and what to pack.

Contents

About your travel guide

Hi! I'm Dev. I've traveled all over the world and in my travels, I have made many packing lists. In this series, my team and I have compiled the most useful information, as well as things we couldn't live without, to help you plan your trip.


When to go to Sarnia, Ontario, Canada

Based on the climate and weather in Sarnia, the best time to go is August. See below for details.

Important essentials for Sarnia, Ontario, Canada

Here are some general tips on what to wear in Sarnia, as well as several items to remember to pack when traveling there.

IMPORTANT COVID-19 ESSENTIALS

Other health necessities


  • Travel first aid kit

    This one is a good choice.


  • Emergency rapid COVID-19 test

    U.S. residents can get them free here. Otherwise, you can buy them here.


  • Emergency motion sickness relief

Don't forget these

Activities for Sarnia, Ontario, Canada

Here are some activity recommendations and activity-specific packing tips for Sarnia.

What to wear/what to pack for Sarnia, Ontario, Canada by month

Already know when you're traveling?

January

If you are traveling to Sarnia in January, you will notice that it is freezing and somewhat snowy. Expect it to rain sometimes and snow about a third of the time. Daytime temperatures are in the low 20s F (single digits below 0 C).

What to wear/what to pack:

February

February here can be extremely cold and somewhat snowy. Temperatures average in the low 30s F (single digits C) during the day. It rains sometimes and snows 5-10 days this month.

What to wear/what to pack:

March

March in Sarnia is pretty cool. The rain/snow can amount to several inches/centimeters. During this time, temperatures average in the low 30s F (single digits C) to low 40s F (single digits C), although night temperatures can dip into the single digits F (10+ below zero C).

What to wear/what to pack:

April

April in Sarnia can be very chilly and somewhat rainy. The average overnight temperatures in the area are in the 30s F (single digits C), with a few days below 28 F (single digits below 0 C). It tends to rain about half of the time. But the colder weather doesn't bring low humidity, which is in the 50% to 60% range on average.

What to wear/what to pack:

May

In May, Sarnia can be chilly and somewhat rainy. Temperatures routinely are in the 60s F (high 10s C) and regularly jump into the low 70s F (low 20s C) range. At night, lows are in the 40s F (single digits C). This is also a rainy time for Sarnia, with several of the days of the month having rain. In May, humidity reaches as high as 60%.

What to wear/what to pack:

June

June is warm and somewhat rainy. Temperatures average in the 70s F (mid 20s C) during the day. It rains a bit less than half of the time.

What to wear/what to pack:

July

July in Sarnia is a perfect temperature and somewhat rainy. The rain can amount to several inches/centimeters. During this time, temperatures average in the low 70s F (mid 20s C).

What to wear/what to pack:

August

If you visit Sarnia during August, you are likely to see that it is a perfect temperature and somewhat rainy. Temperatures tend to hover around the high 70s F (mid 20s C) during the day, while at night they can dip into the high 50s F (mid 10s C). Humidity is generally between 60 and 70% during the day. In terms of precipitation, you can expect it to rain regularly.

What to wear/what to pack:

September

If you vacation in Sarnia during September, you will probably find that it is mild and somewhat rainy. Temperatures tend to hover around the low 70s F (low 20s C) during the day, while at night they can dip into the low 50s F (low 10s C). Humidity is generally between 60 and 70% during the day. In terms of precipitation, you can expect it to rain about a third of the time.

What to wear/what to pack:

October

In October, Sarnia can be chilly and somewhat rainy. Temperatures routinely are in the high 50s F (mid 10s C) and occasionally jump into the low 70s F (low 20s C) range. At night, lows are in the low 40s F (single digits C). This is also a rainy time for Sarnia, with several of the days of the month having rain. In October, humidity reaches as high as 70%.

What to wear/what to pack:

November

If you visit Sarnia during November, you might find that it can be very chilly and somewhat rainy. Temperatures tend to hover around the 40s F (single digits C) during the day, while at night they can dip into the low 30s F (single digits C). Humidity is generally between 60 and 70% during the day. In terms of precipitation, you can expect it to rain 5-10 days this month and snow once in a while.

What to wear/what to pack:

December

In December, Sarnia is frigid and somewhat snowy. Temperatures routinely are in the 30s F (single digits C) range. At night, lows are in the low 20s F (single digits below 0 C). This is also a rainy time for Sarnia, with a few of the days of the month having rain. In December, humidity reaches as high as 80%.

What to wear/what to pack:

Check out our guides for these other locations: O'Fallon, Missouri, United States of America, Agawam, Massachusetts, United States of America, Bol, Chad, Târnăveni, Romania, Sebayatan, India, Ocean Springs, Mississippi, United States of America, Pembwe and the Southeast, Tanzania, Northern River Valleys, Thailand, Burry Port, Wales, United Kingdom, Vilamoura, Portugal, and Olney, Maryland, United States of America.