Ragweed Pollen Count in San Jose, AZ — Today

Pollen by type in San Jose

• San Jose tree pollen count
• San Jose grass pollen count
• San Jose pollen count

What is the ragweed pollen count in San Jose today?

The San Jose ragweed pollen index today is 22 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Ragweed pollen is the dominant allergen in San Jose today. See the full San Jose pollen count for the overall index and every type together.

San Jose Ragweed Pollen Count: 5-Day Forecast

Pollen Atlas models the daily detail as an overall index: day-by-day splits by individual pollen type are not part of the modelled data, so this table shows San Jose’s overall trend across the week. Today’s ragweed pollen reading is the headline above.

Species driving San Jose’s ragweed pollen

Species-level counts are not part of the modelled data Pollen Atlas publishes — the modelled index is reported per pollen type, not per species — so this section gives the type summary: ragweed pollen reads 22 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.

How to read this: the “ragweed” figure on this site is the modelled weed pollen index — the weed group (ragweed + mugwort) — printed under the ragweed name the rankings use.

Plants affecting San Jose now — ragweed pollen

Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for San Jose. The type summary stands: ragweed pollen reads 22 (Low) today.

In the Desert Southwest pattern, the plants that typically shape this city’s year are irrigated landscape trees and grasses, with wind-carried weeds in open ground — named here as regional context only, not as today’s readings.

Plant detail returns here automatically on any day the feed includes it.

What this ragweed pollen level means

Low risk. Keep windows open; consider allergy meds only if sensitive.

Enjoy outdoor activities.

A final weed wave follows the monsoon rains into fall, with monsoon mold in the same weeks. This month sits inside the ragweed pollen window for the Desert Southwest pattern, so today’s ragweed pollen reading should be judged against that chapter of the Arizona year. The Arizona allergy season guide singles out mulberry, ash and olive — planted trees, not wild desert flora.

San Jose allergies today

San Jose allergies today are set by the same reading as the San Jose pollen count today: the Total Pollen Index is 19 (Low), and the ragweed pollen index on this page is 22 (Low) of it. When people ask about San Jose allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for San Jose.

Allergies in San Jose follow the Arizona calendar set out on the full San Jose page — the chapters, the plants behind them, and the 5-day forecast show whether today is typical for the season or an exception to it. If you are checking allergies today in San Jose before heading outdoors, the ragweed pollen split on this page is the part to read: it shows whether this pollen type is doing the work today, not just how high the total sits.

Read the five-day overall trend above as the San Jose allergy forecast for the ragweed pollen season: it shows whether San Jose allergies are set to ease or build across the week, day by day — the days to plan outdoor time around are the ones where the overall index steps down, not just today.