What is the weather like in Half Moon Bay vs Monterey in September?

In September, Half Moon Bay averages 22°C high / 13°C low with about 12 mm of rain; Monterey averages 21°C high / 13°C low with about 4 mm.

Half Moon Bay vs Monterey in September

Half Moon Bay and Monterey are nearly tied in September — 87 vs 88 on SeasonMap's comfort score. Half Moon Bay is nice, dry, clean air; Monterey is nice, dry, clean air.

Half Moon Bay vs Monterey — September climate, side by side

	🇺🇸 Half Moon Bay	🇺🇸 Monterey
Comfort score	87/100 (A)	88/100 (A)
Feels-like high	22°C	22°C
Avg high / low	22° / 13°	21° / 13°
Rainfall	12 mm	4 mm
Rainy days	3	1
Humidity	83%	81%
Air quality (AQI)	43	33

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Half Moon Bay vs Monterey in September — FAQ

Is September better in Half Moon Bay or Monterey?: Half Moon Bay and Monterey are nearly tied in September — 87 vs 88 on SeasonMap's comfort score. Half Moon Bay is nice, dry, clean air; Monterey is nice, dry, clean air.
What is the weather like in Half Moon Bay vs Monterey in September?: In September, Half Moon Bay averages 22°C high / 13°C low with about 12 mm of rain; Monterey averages 21°C high / 13°C low with about 4 mm.