Current live pollen count in Castro Valley, California today

Name: Live pollen levels in Castro Valley, California
Creator: Ambee

Stay updated with real-time pollen levels in Castro Valley, California. Use our interactive maps and forecasts to manage allergies and confidently plan outdoor activities.

Live Pollen Level

High

Castro Valley, California

Last updated: ... (Local time)

Disclaimer: The information provided is for informational purposes only and should not be considered medical advice. Always consult a healthcare professional for allergy-related concerns.

Castro Valley, California allergies right now

Low

Moderate

High

Very high

Tree pollen

107 ppm

208

704+

Grass pollen

107 ppm

342+

Weed pollen

48 ppm

267+

AQI

Good

Castro Valley, California

View Air Pollution Levels

Castro Valley, California

Scroll To Live Pollen Map

Track live Castro Valley, California pollen forecast and history

Time	Pollen Risk Level	Tree Pollen	Grass Pollen	Weed Pollen
2025-06-04T11:00:00.000Z	Low	39ppm low	18ppm low	8ppm low
2025-06-04T12:00:00.000Z	Low	35ppm low	16ppm low	6ppm low
2025-06-04T13:00:00.000Z	Low	37ppm low	17ppm low	7ppm low
2025-06-04T14:00:00.000Z	Low	35ppm low	17ppm low	7ppm low
2025-06-04T15:00:00.000Z	Low	36ppm low	21ppm low	11ppm low
2025-06-04T16:00:00.000Z	Low	34ppm low	19ppm low	9ppm low
2025-06-04T17:00:00.000Z	Low	37ppm low	21ppm low	11ppm low
2025-06-04T18:00:00.000Z	Low	42ppm low	20ppm low	9ppm low
2025-06-04T19:00:00.000Z	Low	34ppm low	16ppm low	6ppm low
2025-06-04T20:00:00.000Z	Low	43ppm low	19ppm low	8ppm low
2025-06-04T21:00:00.000Z	Low	29ppm low	14ppm low	6ppm low
2025-06-04T22:00:00.000Z	Moderate	59ppm low	34ppm moderate	17ppm low
2025-06-04T23:00:00.000Z	Low	45ppm low	26ppm low	13ppm low
2025-06-05T00:00:00.000Z	Moderate	48ppm low	32ppm moderate	17ppm low
2025-06-05T01:00:00.000Z	Moderate	47ppm low	39ppm moderate	15ppm low
2025-06-05T02:00:00.000Z	Moderate	47ppm low	32ppm moderate	16ppm low
2025-06-05T03:00:00.000Z	Moderate	45ppm low	32ppm moderate	11ppm low
2025-06-05T04:00:00.000Z	Low	32ppm low	22ppm low	12ppm low
2025-06-05T05:00:00.000Z	Moderate	69ppm low	47ppm moderate	26ppm moderate
2025-06-05T06:00:00.000Z	Low	33ppm low	23ppm low	8ppm low
2025-06-05T07:00:00.000Z	Low	35ppm low	24ppm low	12ppm low
2025-06-05T08:00:00.000Z	Low	32ppm low	26ppm low	10ppm low
2025-06-05T09:00:00.000Z	Low	32ppm low	21ppm low	11ppm low
2025-06-05T10:00:00.000Z	Low	37ppm low	25ppm low	9ppm low
2025-06-05T11:00:00.000Z	Low	33ppm low	22ppm low	12ppm low
2025-06-05T12:00:00.000Z	Low	36ppm low	25ppm low	13ppm low
2025-06-05T13:00:00.000Z	Low	30ppm low	21ppm low	7ppm low
2025-06-05T14:00:00.000Z	Low	35ppm low	24ppm low	12ppm low
2025-06-05T15:00:00.000Z	Low	34ppm low	28ppm low	11ppm low
2025-06-05T16:00:00.000Z	Low	34ppm low	23ppm low	12ppm low
2025-06-05T17:00:00.000Z	Low	33ppm low	23ppm low	8ppm low
2025-06-05T18:00:00.000Z	Low	32ppm low	22ppm low	12ppm low
2025-06-05T19:00:00.000Z	Low	35ppm low	24ppm low	13ppm low
2025-06-05T20:00:00.000Z	Low	31ppm low	22ppm low	8ppm low
2025-06-05T21:00:00.000Z	Low	36ppm low	24ppm low	12ppm low
2025-06-05T22:00:00.000Z	Moderate	52ppm low	43ppm moderate	17ppm low
2025-06-05T23:00:00.000Z	Moderate	47ppm low	32ppm moderate	16ppm low
2025-06-06T00:00:00.000Z	High	75ppm low	63ppm high	25ppm moderate
2025-06-06T01:00:00.000Z	Low	22ppm low	22ppm low	9ppm low
2025-06-06T02:00:00.000Z	Moderate	38ppm low	31ppm moderate	18ppm low
2025-06-06T03:00:00.000Z	Low	25ppm low	25ppm low	11ppm low
2025-06-06T04:00:00.000Z	High	66ppm low	66ppm high	29ppm moderate
2025-06-06T05:00:00.000Z	Moderate	53ppm low	44ppm moderate	25ppm moderate
2025-06-06T06:00:00.000Z	Low	27ppm low	27ppm low	11ppm low
2025-06-06T07:00:00.000Z	Low	29ppm low	24ppm low	9ppm low
2025-06-06T08:00:00.000Z	Low	17ppm low	17ppm low	7ppm low
2025-06-06T09:00:00.000Z	Moderate	48ppm low	40ppm moderate	23ppm moderate
2025-06-06T10:00:00.000Z	High	107ppm moderate	107ppm high	48ppm moderate
2025-06-06T11:00:00.000Z	High	73ppm low	73ppm high	32ppm moderate
2025-06-06T12:00:00.000Z	Moderate	73ppm low	60ppm moderate	35ppm moderate
2025-06-06T13:00:00.000Z	High	70ppm low	70ppm high	29ppm moderate
2025-06-06T14:00:00.000Z	High	116ppm moderate	97ppm high	38ppm moderate
2025-06-06T15:00:00.000Z	Moderate	45ppm low	45ppm moderate	19ppm low
2025-06-06T16:00:00.000Z	Low	31ppm low	26ppm low	15ppm low
2025-06-06T17:00:00.000Z	Moderate	43ppm low	43ppm moderate	19ppm low
2025-06-06T18:00:00.000Z	Low	23ppm low	23ppm low	10ppm low
2025-06-06T19:00:00.000Z	High	75ppm low	62ppm high	35ppm moderate
2025-06-06T20:00:00.000Z	Low	25ppm low	25ppm low	10ppm low
2025-06-06T21:00:00.000Z	Low	26ppm low	21ppm low	8ppm low
2025-06-06T22:00:00.000Z	Moderate	41ppm low	41ppm moderate	17ppm low
2025-06-06T23:00:00.000Z	Moderate	44ppm low	36ppm moderate	20ppm low
2025-06-07T00:00:00.000Z	Moderate	27ppm low	40ppm moderate	20ppm low
2025-06-07T01:00:00.000Z	Moderate	30ppm low	37ppm moderate	17ppm low
2025-06-07T02:00:00.000Z	Moderate	27ppm low	33ppm moderate	14ppm low
2025-06-07T03:00:00.000Z	Low	20ppm low	25ppm low	11ppm low
2025-06-07T04:00:00.000Z	Low	20ppm low	25ppm low	11ppm low
2025-06-07T05:00:00.000Z	Moderate	32ppm low	47ppm moderate	24ppm moderate
2025-06-07T06:00:00.000Z	Moderate	35ppm low	42ppm moderate	21ppm moderate
2025-06-07T07:00:00.000Z	Low	18ppm low	27ppm low	13ppm low
2025-06-07T08:00:00.000Z	Moderate	27ppm low	33ppm moderate	16ppm low
2025-06-07T09:00:00.000Z	Moderate	36ppm low	44ppm moderate	19ppm low
2025-06-07T10:00:00.000Z	Moderate	38ppm low	46ppm moderate	21ppm moderate
2025-06-07T11:00:00.000Z	Moderate	36ppm low	44ppm moderate	21ppm moderate
2025-06-07T12:00:00.000Z	Low	14ppm low	21ppm low	10ppm low
2025-06-07T13:00:00.000Z	Low	15ppm low	18ppm low	9ppm low
2025-06-07T14:00:00.000Z	Low	18ppm low	26ppm low	13ppm low
2025-06-07T15:00:00.000Z	Low	19ppm low	23ppm low	11ppm low
2025-06-07T16:00:00.000Z	Low	22ppm low	27ppm low	12ppm low
2025-06-07T17:00:00.000Z	Moderate	28ppm low	35ppm moderate	15ppm low
2025-06-07T18:00:00.000Z	Moderate	24ppm low	30ppm moderate	14ppm low
2025-06-07T19:00:00.000Z	Moderate	28ppm low	42ppm moderate	21ppm moderate
2025-06-07T20:00:00.000Z	Low	15ppm low	18ppm low	9ppm low
2025-06-07T21:00:00.000Z	Low	11ppm low	17ppm low	8ppm low
2025-06-07T22:00:00.000Z	Low	21ppm low	25ppm low	12ppm low
2025-06-07T23:00:00.000Z	Moderate	26ppm low	32ppm moderate	14ppm low
2025-06-08T00:00:00.000Z	High	36ppm low	66ppm high	27ppm moderate
2025-06-08T01:00:00.000Z	Moderate	20ppm low	38ppm moderate	20ppm low
2025-06-08T02:00:00.000Z	High	32ppm low	61ppm high	32ppm moderate
2025-06-08T03:00:00.000Z	Low	14ppm low	25ppm low	10ppm low
2025-06-08T04:00:00.000Z	Low	20ppm low	29ppm low	15ppm low
2025-06-08T05:00:00.000Z	Low	14ppm low	21ppm low	10ppm low
2025-06-08T06:00:00.000Z	Low	16ppm low	24ppm low	12ppm low
2025-06-08T07:00:00.000Z	Moderate	29ppm low	53ppm moderate	21ppm moderate
2025-06-08T08:00:00.000Z	Moderate	16ppm low	31ppm moderate	16ppm low
2025-06-08T09:00:00.000Z	Moderate	18ppm low	35ppm moderate	18ppm low
2025-06-08T10:00:00.000Z	Low	11ppm low	20ppm low	8ppm low

Pollen Level

Castro Valley

Time	Pollen Risk Level	Tree Pollen	Grass Pollen	Weed Pollen
No results found

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Various types of pollen concentrations in Castro Valley, California

6ppm

Ash

5ppm

Birch

7ppm

Elm

6ppm

Maple

11ppm

Mulberry

38ppm

Oak

25ppm

Pine

48ppm

Ragweed

Castro Valley, California allergy map: Track pollen near you

Grass

Allergy tips for Castro Valley, California

As pollen risk levels are

High

Quickly remove pollen from your body by showering and changing clothes upon entering Castro Valley, California.
Keep your clothes and bedding indoors in Castro Valley, California to prevent pollen from settling on them.
Reduce pollen transfer indoors by keeping pets clean and well-groomed in Castro Valley, California.
Reduce pollen exposure during outdoor chores in Castro Valley, California by using a mask or respirator.
Minimize pollen exposure indoors in Castro Valley, California with the help of portable air purifiers.
Reduce indoor pollen levels in Castro Valley, California by frequently cleaning with a HEPA-filter vacuum.
Keep your body hydrated in Castro Valley, California to minimize allergy discomfort.

How accurate is California, USA pollen data?

Ambee’s pollen data for California, USA follows National Allergy Bureau (NAB) standards, offering accurate, real-time updates with clear allergy risk levels. Our approach, using machine learning and historical trends, ensures precise, hyper-local pollen forecasts to support allergy management.

Disclaimer: While we strive for accuracy, individual responses to allergens may vary. Always consult a healthcare provider for personal advice.

Pollen levels in US

Check live rankings of places in the US with high pollen levels and stay informed about allergy risks.

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Check live rankings of places in the US with the lowest pollen levels and breathe easier.

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Frequently asked questions

How often is pollen information updated for Castro Valley, California?

The pollen information for Castro Valley, California is updated every hour for accuracy.

What is the pollen risk in Castro Valley, California today?

In Castro Valley, California, today's pollen level suggests a high risk for allergies.

What was the pollen level in Castro Valley, California yesterday?

The pollen level in Castro Valley, California yesterday was high.

What is today's ragweed pollen level in Castro Valley, California?

Today, the ragweed count in Castro Valley, California stands at 48 ppm, indicating moderate allergy risk.

What level is the oak pollen count at in Castro Valley, California today?

The oak pollen level in Castro Valley, California today is 38 ppm.

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