1-Month Aurora Forecast Calendar

See the next month of aurora activity and moon phases.

Long-term aurora forecast calendar with daily Kp index estimates, moon phases, and activity levels.
Mon	Tue	Wed	Thu	Fri	Sat	Sun
		28Wednesday, October 28, 2026. Today. No aurora activity. Estimated Kp index 1.3. Waning gibbous, 92% illumination	29Thursday, October 29, 2026. No aurora activity. Estimated Kp index 1.3. Waning gibbous, 85% illumination	30Friday, October 30, 2026. No aurora activity. Estimated Kp index 1.3. Waning gibbous, 76% illumination	31Saturday, October 31, 2026. Moderate aurora activity. Estimated Kp index 4.1. Last quarter, 65% illumination	1Sunday, November 1, 2026. Low aurora activity. Estimated Kp index 3.4. Last quarter, 54% illumination
2Monday, November 2, 2026. Low aurora activity. Estimated Kp index 2.4. Last quarter, 43% illumination	3Tuesday, November 3, 2026. No aurora activity. Estimated Kp index 1.3. Last quarter, 32% illumination	4Wednesday, November 4, 2026. No aurora activity. Estimated Kp index 1.3. Waning crescent, 23% illumination	5Thursday, November 5, 2026. Low aurora activity. Estimated Kp index 2.4. Waning crescent, 14% illumination	6Friday, November 6, 2026. Low aurora activity. Estimated Kp index 2.4. Waning crescent, 8% illumination	7Saturday, November 7, 2026. Low aurora activity. Estimated Kp index 2.4. New moon, 3% illumination	8Sunday, November 8, 2026. No aurora activity. Estimated Kp index 1.3. New moon, 1% illumination
9Monday, November 9, 2026. Low aurora activity. Estimated Kp index 3.0. New moon, 0% illumination	10Tuesday, November 10, 2026. Low aurora activity. Estimated Kp index 2.4. New moon, 2% illumination	11Wednesday, November 11, 2026. Low aurora activity. Estimated Kp index 2.4. Waxing crescent, 5% illumination	12Thursday, November 12, 2026. Low aurora activity. Estimated Kp index 2.4. Waxing crescent, 10% illumination	13Friday, November 13, 2026. No aurora activity. Estimated Kp index 1.3. Waxing crescent, 16% illumination	14Saturday, November 14, 2026. No aurora activity. Estimated Kp index 1.3. Waxing crescent, 23% illumination	15Sunday, November 15, 2026. No aurora activity. Estimated Kp index 1.3. First quarter, 32% illumination
16Monday, November 16, 2026. Low aurora activity. Estimated Kp index 2.4. First quarter, 41% illumination	17Tuesday, November 17, 2026. Low aurora activity. Estimated Kp index 3.4. First quarter, 50% illumination	18Wednesday, November 18, 2026. Low aurora activity. Estimated Kp index 3.4. First quarter, 60% illumination	19Thursday, November 19, 2026. Low aurora activity. Estimated Kp index 2.4. Waxing gibbous, 70% illumination	20Friday, November 20, 2026. No aurora activity. Estimated Kp index 1.3. Waxing gibbous, 79% illumination	21Saturday, November 21, 2026. No aurora activity. Estimated Kp index 1.3. Waxing gibbous, 87% illumination	22Sunday, November 22, 2026. No aurora activity. Estimated Kp index 1.3. Waxing gibbous, 94% illumination
23Monday, November 23, 2026. No aurora activity. Estimated Kp index 1.3. Full moon, 98% illumination	24Tuesday, November 24, 2026. No aurora activity. Estimated Kp index 1.3. Full moon, 100% illumination	25Wednesday, November 25, 2026. No aurora activity. Estimated Kp index 1.3. Full moon, 99% illumination	26Thursday, November 26, 2026. No aurora activity. Estimated Kp index 1.3. Waning gibbous, 95% illumination	27Friday, November 27, 2026. Moderate aurora activity. Estimated Kp index 4.1. Waning gibbous, 88% illumination

LowAurora ActivityHigh

How accurate is a 1-month aurora forecast?

It's much less accurate than a 3-day forecast. The aurora is caused by charged particles from the Sun. When the Sun has an eruption, forecasters can see the cloud of particles leave the Sun, and it usually takes one to three days to reach Earth. That's why most aurora forecasts only look about three days ahead.

A forecast weeks ahead can't see eruptions that haven't happened yet, so it's based on the Sun's rotation instead. The Sun turns about once every 27 days, and the areas that caused aurora activity last time can still be there when they face Earth again. This gives an idea of which days might have more activity, but the forecast can change as the dates get closer.

The data comes from the 45-day forecast by NOAA's Space Weather Prediction Center.