Ontario, Oregon, United States of America: What to pack, what to wear, and when to go [2022]
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Traveling to Ontario, Oregon, United States of America? If you're planning to go to Ontario, I have some important information about when to go, what to wear, and what to pack.
Contents
- When to go to Ontario
- Important essentials for Ontario
- Activities for Ontario
- Ontario in January: weather and what to pack
- Ontario in February: weather and what to pack
- Ontario in March: weather and what to pack
- Ontario in April: weather and what to pack
- Ontario in May: weather and what to pack
- Ontario in June: weather and what to pack
- Ontario in July: weather and what to pack
- Ontario in August: weather and what to pack
- Ontario in September: weather and what to pack
- Ontario in October: weather and what to pack
- Ontario in November: weather and what to pack
- Ontario in December: weather and what to pack

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 Ontario, Oregon, United States of America
Based on the climate and weather in Ontario, the best time to go is August. See below for details.
Important essentials for Ontario, Oregon, United States of America
Here are some general tips on what to wear in Ontario, as well as several items to remember to pack when traveling there.
COVID-19 ESSENTIALS FOR 2022
Travel insurance that includes COVID-19 coverage
Cases are climbing again, and areas are returning to lockdown. If you or a companion get COVID-19, you may be stuck with no way home -- but travel insurance can protect you. Learn more about COVID-19 and travel insurance
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Hand sanitizer
This hand sanitizer is an easy-to-carry plane-friendly choice.
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Touchless thermometer
A touchless thermometer is important to have.
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A vaccine card protector
Vaccine cards may get worn. An unreadable card can have severe consequences. This vaccine card protector helps stop that.
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Travel disinfecting wipes
Use these to sanitize plane and hotel surfaces.
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Kids' KN95 masks
N95 masks aren't sold for kids. These are a good alternative (and can also be used by adults if N95 masks are not available).
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N95 masks
These N95 masks provide the best level of protection you can have.
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(U.S. Residents) Telehealth COVID-19 test for entry to U.S.
U.S. residents still need a certified COVID-19 test to return home, but it can now be via Zoom. Learn more
General health necessities
Don't forget these
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Power bank for devices
A portable power bank, like this one
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Voice and data SIM card
A SIM card that works in Ontario. A good global SIM card works in most countries, but check the country list before buying.
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Money/passport pouch
A money pouch is vital for protecting your passport and credit cards.
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Plug adapter
A plug adapter that supports outlet types A and B. This one should be sufficient for most countries, but check with your hotel.
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For families with young children
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Airplane or car necessities
What to wear/what to pack for Ontario, Oregon, United States of America by month
Already know when you're traveling?
January
If you go to Ontario in January, you will notice that it is freezing. Daytime temperatures are in the 30s F (single digits C).
What to wear/what to pack:
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Insulated ice boots
We use:
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Lip balm
The best is: here
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Extreme weather jacket shell
These are a great value:
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Extreme cold weather gloves
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Thermal undergarments
Our picks:
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Heavy sweaters
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Very heavy heated socks
Like these
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Pajamas
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Fleece inner layer
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Scarf/neck warmer
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Coveralls/snow pants
Here are some of our favorites:
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A rain poncho to layer with a jacket
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100% waterproof footwear
We recommend rain boots:
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Rain pants
These will be vital in a rainstorm.
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Waterproof phone bag
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Wind resistant umbrella
This one is a perfect one to buy.
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Waterproof bag/luggage cover
So your belongings don't get wet. We suggest:
February
February in Ontario is brisk. The average overnight temperatures in the area are in the 20s F (single digits below 0 C).
What to wear/what to pack:
March
If you visit Ontario during March, you may find that it is cold. Temperatures tend to hover around the 50s F (low 10s C) during the day, while at night they can dip into the low 30s F (single digits below 0 C).
What to wear/what to pack:
April
April is mild. Temperatures average in the 60s F (high 10s C) during the day.
What to wear/what to pack:
May
Traveling to Ontario in May, you will notice that it is a perfect temperature and dry with little rain. Daytime temperatures are in the low 70s F (low 20s C).
What to wear/what to pack:
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Sunscreen lotion
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Long and short sleeve shirts
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Sandals
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Short pants or heavy shorts
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Bug repellent
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Extra socks
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Light skirts
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Light dresses
You can find some great options here
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Breathable footwear or sandals
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A rain jacket to layer with a jacket
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100% waterproof footwear
We use rain boots:
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Rain pants
These can be essential in a rainstorm.
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Waterproof phone bag
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Umbrella
This one is a great choice.
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Waterproof bag/luggage cover
So your suitcases remain dry. We recommend:
June
June here is pretty consistently hot and very dry with almost no rain. Temperatures average in the low 80s F (high 20s C) during the day.
What to wear/what to pack:
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Sunscreen lotion, moderate SPF
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Skirts
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Cool and dry dresses
These dresses offer UV protection and cool you.
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Breatheable shirts
A breatheable shirt can keep you comfortable and guard against skin damage:
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Sunglasses
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Loose-fit shorts
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Waterproof sandals
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Bug repellent
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Insulated water bottle
Our pick:
July
Traveling to Ontario in July, you will notice that it is sizzling and very dry with almost no rain. Daytime temperatures are in the 90s F (mid 30s C).
What to wear/what to pack:
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Protecting pants
These will keep you safe from UV rays while also cool. Our favorites:
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Insulated water bottle
- https://amzn.to/31Mz9kT
Bug bite relief
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High-SPF sunscreen lotion
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Sunglasses
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Personal cooling fan
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Waterproof sandals
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Light dresses
These Columbia dresses are developed for cooling and include UV protection.
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Cooling tank or crop tops
These are engineered to help you stay cool:
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Thin short sleeve shirts
It's important bring additional, as these are likely to get wet or dirty.
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Light linen shorts
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Bug repellent
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Lightweight 'harem' pants
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Skirts
August
If you visit Ontario during August, you will probably see that it is extremely hot and very dry with almost no rain. Temperatures tend to hover around the low 80s F (low 30s C) during the day, while at night they can dip into the 50s F (low 10s C).
What to wear/what to pack:
-
Waterproof sandals
-
Insulated water bottle
Our best choice:
-
Loose-fit shorts
-
Bug repellent
-
Sunscreen lotion, moderate SPF
-
Cool and dry dresses
These dresses to provide UV protection and keep you cool.
-
Sunglasses
-
Skirts
-
Breatheable shirts
A breatheable shirt can make you comfortable and guard against the sun:
September
Traveling to Ontario in September, you will notice that it is pretty consistently hot and very dry with almost no rain. Daytime temperatures are in the low 80s F (high 20s C).
What to wear/what to pack:
-
Sunscreen lotion
-
Short pants or heavy shorts
-
Breathable footwear or sandals
-
Extra socks
-
Long and short sleeve shirts
-
Light dresses
You can find some great options here
-
Light skirts
-
Sandals
-
Bug repellent
October
October in Ontario is mild. The average overnight temperatures in the area are in the 30s F (single digits C).
What to wear/what to pack:
November
Traveling to Ontario in November, you will notice that it is pretty cool. Daytime temperatures are in the high 40s F (single digits C).
What to wear/what to pack:
December
If you go to Ontario in December, you will notice that it can be brisk. Daytime temperatures are in the high 30s F (single digits C).
What to wear/what to pack:
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Gloves
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Heavy socks
Such as:
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Sweaters
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Insulated water bottle
Our pick:
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Warm pants or jeans
-
Heavy jacket
-
Lip balm
Our pick is: here
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Cold weather footwear
-
A rain poncho to layer with another jacket
-
100% waterproof footwear
We like rain boots:
-
Rain pants
These can be vital in heavy rain.
-
Waterproof phone bag
-
Windproof umbrella
This one is a great one to buy.
-
Waterproof bag/luggage cover
So your bags stay dry. We like:
Activities for Ontario, Oregon, United States of America
Here are some activity recommendations and activity-specific packing tips for Ontario.
If you visit the Four Rivers Cultural Center and Museum, wear museum-appropriate clothing and take:
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Comfy walking shoes
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Small portable cooler
Save money on drinks with this portable cooler.
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Ultralight day pack
Like this, so you don't have to lug around a heavy suitcase.
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