Mount Diablo State Park, California, United States of America: What to pack, what to wear, and when to go [2022]

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Traveling to Mount Diablo State Park, California, United States of America? If you're planning to go to Mount Diablo State Park, I have 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 Mount Diablo State Park, California, United States of America

Based on the climate and weather in Mount Diablo State Park, the best time to go is September. See below for details.

Important essentials for Mount Diablo State Park, California, United States of America

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

COVID-19 ESSENTIALS FOR 2022


  • N95 masks to use in crowded airports

    These N95 masks provide the best level of COVID protection available.


  • Kids' KN95 masks

    N95 masks don't exist for kids. These are a good alternative (and can also be used by adults if N95 masks are not available).


  • A vaccine card protector

    Vaccine cards may get worn. An unreadable vaccination card can have severe consequences. This vaccine card protector helps stop that.


  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.


  • Travel insurance

    If you or a companion get COVID-19, your amazing trip can be ruined. Good travel insurance can help. See plans


  • Hand sanitizer

    This hand sanitizer is an excellent plane-friendly product.

General health necessities

Don't forget these

What to wear/what to pack for Mount Diablo State Park, California, United States of America by month

Already know when you're traveling?

January

January here is brisk. Temperatures average in the 50s F (low 10s C) during the day.

What to wear/what to pack:

If you go to Blackhawk Ranch Quarry, you're likely to do a lot of walking. These are a must:


  • Small portable cooler

    Save money on drinks with this portable cooler.


  • Good hiking shoes

    These are designed for this kind of walking, and can breathe and can get wet


  • Ultralight day pack

    Like this, so you don't have to lug around a heavy suitcase.


  • Binoculars

    Like these

February

In February, Mount Diablo State Park is relatively cool. Temperatures routinely are in the high 50s F (mid 10s C) and regularly jump into the low 60s F (mid 10s C) range. At night, lows are in the low 40s F (single digits C). This is also a rainy time for Mount Diablo State Park, with several of the days of the month having rain.

What to wear/what to pack:

If you go to Blackhawk Ranch Quarry, you're likely to do a lot of walking. These are a must:


  • Small portable cooler

    Save money on drinks with this portable cooler.


  • Good hiking shoes

    These are designed for this kind of walking, and can breathe and can get wet


  • Ultralight day pack

    Like this, so you don't have to lug around a heavy suitcase.


  • Binoculars

    Like these

March

March here is relatively cool. Temperatures average in the high 50s F (mid 10s C) during the day.

What to wear/what to pack:

If you go to Blackhawk Ranch Quarry, you're likely to do a lot of walking. These are a must:


  • Small portable cooler

    Save money on drinks with this portable cooler.


  • Good hiking shoes

    These are designed for this kind of walking, and can breathe and can get wet


  • Ultralight day pack

    Like this, so you don't have to lug around a heavy suitcase.


  • Binoculars

    Like these

April

If you visit Mount Diablo State Park during April, you might see that it is cool. Temperatures tend to hover around the 60s F (high 10s C) during the day, while at night they can dip into the low 40s F (single digits C).

What to wear/what to pack:

If you go to Blackhawk Ranch Quarry, you're likely to do a lot of walking. These are a must:


  • Small portable cooler

    Save money on drinks with this portable cooler.


  • Good hiking shoes

    These are designed for this kind of walking, and can breathe and can get wet


  • Ultralight day pack

    Like this, so you don't have to lug around a heavy suitcase.


  • Binoculars

    Like these

May

Traveling to Mount Diablo State Park in May, you will notice that it is balmy and dry with little rain. Daytime temperatures are in the low 70s F (low 20s C).

What to wear/what to pack:

If you go to Blackhawk Ranch Quarry, you're likely to do a lot of walking. These are a must:


  • Small portable cooler

    Save money on drinks with this portable cooler.


  • Good hiking shoes

    These are designed for this kind of walking, and can breathe and can get wet


  • Ultralight day pack

    Like this, so you don't have to lug around a heavy suitcase.


  • Binoculars

    Like these

June

If you vacation in Mount Diablo State Park during June, you will probably see that it is warm and very dry with almost no rain. Temperatures tend to hover around the high 70s F (mid 20s C) during the day, while at night they can dip into the low 50s F (low 10s C).

What to wear/what to pack:

If you go to Blackhawk Ranch Quarry, you're likely to do a lot of walking. These are a must:


  • Small portable cooler

    Save money on drinks with this portable cooler.


  • Good hiking shoes

    These are designed for this kind of walking, and can breathe and can get wet


  • Ultralight day pack

    Like this, so you don't have to lug around a heavy suitcase.


  • Binoculars

    Like these

July

July is really hot and very dry with almost no rain. Temperatures average in the 80s F (low 30s C) during the day.

What to wear/what to pack:

If you go to Blackhawk Ranch Quarry, you're likely to do a lot of walking. These are a must:


  • Small portable cooler

    Save money on drinks with this portable cooler.


  • Good hiking shoes

    These are designed for this kind of walking, and can breathe and can get wet


  • Ultralight day pack

    Like this, so you don't have to lug around a heavy suitcase.


  • Binoculars

    Like these

August

If you go to Mount Diablo State Park in August, you will notice that it is extremely hot and very dry with almost no rain. Daytime temperatures are in the 80s F (low 20s C).

What to wear/what to pack:

If you go to Blackhawk Ranch Quarry, you're likely to do a lot of walking. These are a must:


  • Small portable cooler

    Save money on drinks with this portable cooler.


  • Good hiking shoes

    These are designed for this kind of walking, and can breathe and can get wet


  • Ultralight day pack

    Like this, so you don't have to lug around a heavy suitcase.


  • Binoculars

    Like these

September

September 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:

If you go to Blackhawk Ranch Quarry, you're likely to do a lot of walking. These are a must:


  • Small portable cooler

    Save money on drinks with this portable cooler.


  • Good hiking shoes

    These are designed for this kind of walking, and can breathe and can get wet


  • Ultralight day pack

    Like this, so you don't have to lug around a heavy suitcase.


  • Binoculars

    Like these

October

October is a perfect temperature and dry with little rain. Temperatures average in the 70s F (low 20s C) during the day.

What to wear/what to pack:

If you go to Blackhawk Ranch Quarry, you're likely to do a lot of walking. These are a must:


  • Small portable cooler

    Save money on drinks with this portable cooler.


  • Good hiking shoes

    These are designed for this kind of walking, and can breathe and can get wet


  • Ultralight day pack

    Like this, so you don't have to lug around a heavy suitcase.


  • Binoculars

    Like these

November

If you go to Mount Diablo State Park in November, you will notice that it is chilly. Daytime temperatures are in the low 60s F (high 10s C).

What to wear/what to pack:

If you go to Blackhawk Ranch Quarry, you're likely to do a lot of walking. These are a must:


  • Small portable cooler

    Save money on drinks with this portable cooler.


  • Good hiking shoes

    These are designed for this kind of walking, and can breathe and can get wet


  • Ultralight day pack

    Like this, so you don't have to lug around a heavy suitcase.


  • Binoculars

    Like these

December

If you visit Mount Diablo State Park during December, you are likely to see that it is crisp. 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 C).

What to wear/what to pack:

If you go to Blackhawk Ranch Quarry, you're likely to do a lot of walking. These are a must:


  • Small portable cooler

    Save money on drinks with this portable cooler.


  • Good hiking shoes

    These are designed for this kind of walking, and can breathe and can get wet


  • Ultralight day pack

    Like this, so you don't have to lug around a heavy suitcase.


  • Binoculars

    Like these

Activities for Mount Diablo State Park, California, United States of America

Here are some activity recommendations and activity-specific packing tips for Mount Diablo State Park.

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