Rule Fog Hunter

Fog Hunter Forecast for Ribeira Grande, Azores

Ribeira Grande, Azores, Portugal

Ribeira Grande's river gorge and stone bridges cut through whitewashed streets. The watercourse leads outward toward the rugged cliffs of São Miguel's north coast.

0 matching opportunities in the 14-day forecast.

Hourly forecast scores

Forecast valid from Oct 7, 2026, 11:00 PM UTC (one hour; not an observation)

Fog Probability

Dewpoint Spread3.4°C

Visibility24740

Relative Humidity81%

Wind Speed3.4m/s

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Atlantic/Azores

No matching opportunities in this 14-day forecast

See which requirements block the most forecast hours below.

71-hour requirements breakdown

When available, this detailed table covers only the stated 71-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the full 14-day forecast period, so this table does not explain that entire period. Times shown in Atlantic/Azores.

Requirements breakdown is temporarily unavailable or expired. This does not mean no opportunities.

Supporting forecast inputs

Additional hourly values for interpreting the forecast and any derived scores. See the separate requirements breakdown for rule logic; missing values are unavailable.

Forecast time (Atlantic/Azores)	Aerosol Optical Depth (550nm)	Clear Sky Probability (Ensemble)	Dew Point	Lifted Index	Rainfall	Relative Humidity	Snowfall	Solar Elevation	Temperature	Total Precipitation	Vapor Pressure Deficit	Visibility	Wind Gusts	Wind Speed
Wed, Oct 7, 2026Sunrise 07:43 · Sunset 19:15
23:00 Night	0.14	3%	16°C	8.7°C	0mm	81%	0cm	-43°	20°C	0mm	0.43kPa	24740m	7.3m/s	3.4m/s
Thu, Oct 8, 2026Sunrise 07:44 · Sunset 19:14
24:00 Night	0.14	4%	16°C	9.1°C	0mm	79%	0cm	-52°	19°C	0mm	0.47kPa	26540m	7.6m/s	3.3m/s
01:00 Night	0.13	9%	15°C	11°C	0mm	76%	0cm	-57°	19°C	0mm	0.52kPa	29720m	7.2m/s	3.1m/s
02:00 Night	0.12	13%	14°C	11°C	0mm	73%	0cm	-57°	19°C	0mm	0.58kPa	32960m	7.3m/s	3.3m/s
03:00 Night	0.12	18%	14°C	12°C	0mm	74%	0cm	-52°	19°C	0mm	0.55kPa	32960m	7.7m/s	3m/s
04:00 Night	0.13	13%	14°C	12°C	0mm	75%	0cm	-43°	19°C	0mm	0.54kPa	32980m	7.1m/s	2.6m/s
05:00 Night	0.14	9%	13°C	12°C	0mm	70%	0cm	-33°	19°C	0mm	0.66kPa	32940m	6.8m/s	2.7m/s
06:00 Night	0.14	4%	13°C	11°C	0mm	69%	0cm	-21°	19°C	0mm	0.68kPa	32720m	6.4m/s	2.4m/s
07:00 Night	0.15	5%	14°C	10°C	0mm	74%	0cm	-9.4°	19°C	0mm	0.57kPa	37820m	6.2m/s	2.3m/s
08:00	0.15	6%	15°C	9.6°C	0mm	74%	0cm	2.6°	20°C	0mm	0.59kPa	37800m	5.7m/s	2.1m/s
09:00	0.16	7%	16°C	9.6°C	0mm	75%	0cm	14°	20°C	0mm	0.59kPa	37760m	8.8m/s	4.4m/s
10:00	0.15	6%	14°C	9.7°C	0mm	67%	0cm	25°	21°C	0mm	0.8kPa	37660m	9.9m/s	5.2m/s
11:00	0.14	6%	14°C	10°C	0mm	61%	0cm	34°	22°C	0mm	1kPa	41600m	9.8m/s	4.8m/s
12:00	0.13	5%	14°C	9.9°C	0mm	62%	0cm	41°	22°C	0mm	0.99kPa	30340m	10m/s	5.2m/s
13:00	0.13	11%	14°C	10°C	0mm	60%	0cm	46°	22°C	0mm	1.1kPa	20960m	10m/s	5.1m/s
14:00	0.14	17%	14°C	10°C	0mm	59%	0cm	46°	22°C	0mm	1.1kPa	14920m	9.5m/s	4.9m/s
15:00	0.15	23%	14°C	10°C	0mm	58%	0cm	41°	22°C	0mm	1.1kPa	10040m	9.2m/s	4.8m/s
16:00	0.16	22%	14°C	10°C	0mm	59%	0cm	34°	22°C	0mm	1.1kPa	37760m	8.9m/s	4.8m/s
17:00	0.17	21%	15°C	11°C	0mm	65%	0cm	24°	21°C	0mm	0.89kPa	37720m	9.7m/s	5m/s
18:00	0.18	20%	14°C	11°C	0mm	65%	0cm	14°	21°C	0mm	0.86kPa	37680m	9.2m/s	4.4m/s
19:00	0.18	20%	14°C	11°C	0mm	66%	0cm	2.3°	20°C	0mm	0.81kPa	37620m	8.3m/s	3.6m/s
20:00 Night	0.18	21%	14°C	12°C	0mm	71%	0cm	-9.7°	20°C	0mm	0.66kPa	37540m	7.5m/s	2.8m/s
21:00 Night	0.17	21%	15°C	12°C	0mm	74%	0cm	-22°	19°C	0mm	0.58kPa	37200m	6.2m/s	2.6m/s
22:00 Night	0.16	18%	14°C	12°C	0mm	73%	0cm	-33°	19°C	0mm	0.6kPa	37480m	6.2m/s	2.5m/s
23:00 Night	0.16	15%	14°C	13°C	0mm	74%	0cm	-44°	19°C	0mm	0.57kPa	37440m	6m/s	2.4m/s
Fri, Oct 9, 2026Sunrise 07:45 · Sunset 19:13
24:00 Night	0.16	12%	15°C	13°C	0mm	76%	0cm	-52°	19°C	0mm	0.52kPa	37460m	6m/s	2.5m/s
01:00 Night	Unavailable	8%	15°C	13°C	0mm	76%	0cm	-58°	19°C	0mm	0.52kPa	37500m	6.1m/s	2.5m/s
02:00 Night	Unavailable	4%	14°C	13°C	0mm	75%	0cm	-58°	19°C	0mm	0.54kPa	37560m	6.3m/s	2.5m/s
03:00 Night	Unavailable	0%	15°C	12°C	0mm	76%	0cm	-52°	19°C	0mm	0.52kPa	26280m	6m/s	2.5m/s
04:00 Night	Unavailable	0%	15°C	12°C	0mm	78%	0cm	-44°	19°C	0mm	0.47kPa	32700m	6m/s	2m/s
05:00 Night	Unavailable	0%	15°C	12°C	0mm	81%	0cm	-33°	19°C	0mm	0.4kPa	29500m	5.4m/s	1.7m/s
06:00 Night	Unavailable	0%	16°C	13°C	0mm	84%	0cm	-21°	18°C	0mm	0.34kPa	22940m	4.9m/s	1.7m/s
07:00 Night	Unavailable	1%	15°C	13°C	0mm	82%	0cm	-9.6°	19°C	0mm	0.38kPa	25040m	4.4m/s	1.4m/s
08:00	Unavailable	1%	16°C	13°C	0mm	85%	0cm	2.4°	19°C	0mm	0.32kPa	27820m	3.8m/s	1.4m/s
09:00	Unavailable	2%	17°C	13°C	0mm	85%	0cm	14°	20°C	0mm	0.34kPa	20200m	3.9m/s	1.6m/s
10:00	Unavailable	2%	16°C	13°C	0mm	71%	0cm	24°	21°C	0mm	0.72kPa	19500m	5m/s	2.2m/s
11:00	Unavailable	1%	15°C	12°C	0mm	66%	0cm	34°	22°C	0mm	0.88kPa	22640m	6.7m/s	3.5m/s
12:00	Unavailable	1%	15°C	12°C	0mm	66%	0cm	41°	22°C	0mm	0.89kPa	19040m	7.1m/s	3.8m/s
13:00	Unavailable	8%	15°C	12°C	0mm	65%	0cm	45°	22°C	0mm	0.93kPa	13600m	7.2m/s	3.5m/s
14:00	Unavailable	14%	15°C	12°C	0mm	62%	0cm	45°	23°C	0mm	1kPa	10880m	6.6m/s	3.1m/s
15:00	Unavailable	21%	14°C	12°C	0mm	59%	0cm	41°	23°C	0mm	1.1kPa	10280m	6.1m/s	2.9m/s
16:00	Unavailable	19%	14°C	12°C	0mm	57%	0cm	34°	23°C	0mm	1.2kPa	16580m	5.6m/s	2.6m/s
17:00	Unavailable	18%	13°C	12°C	0mm	55%	0cm	24°	22°C	0mm	1.2kPa	37900m	5.2m/s	2.3m/s
18:00	Unavailable	16%	12°C	12°C	0mm	54%	0cm	13°	22°C	0mm	1.2kPa	37880m	4.6m/s	2.2m/s
19:00	Unavailable	16%	13°C	12°C	0mm	59%	0cm	2.1°	21°C	0mm	1kPa	37840m	4.2m/s	1.9m/s
20:00 Night	Unavailable	16%	14°C	12°C	0mm	69%	0cm	-10°	20°C	0mm	0.72kPa	37760m	3.9m/s	1.6m/s
21:00 Night	Unavailable	16%	15°C	13°C	0mm	75%	0cm	-22°	19°C	0mm	0.56kPa	37720m	3.8m/s	1.4m/s
22:00 Night	Unavailable	15%	15°C	13°C	0mm	78%	0cm	-33°	19°C	0mm	0.48kPa	37680m	3.6m/s	1.5m/s
23:00 Night	Unavailable	15%	15°C	13°C	0mm	78%	0cm	-44°	19°C	0mm	0.49kPa	37660m	3.5m/s	1.4m/s
Sat, Oct 10, 2026Sunrise 07:45 · Sunset 19:11
24:00 Night	Unavailable	14%	16°C	13°C	0mm	81%	0cm	-53°	19°C	0mm	0.42kPa	37740m	3m/s	1.3m/s
01:00 Night	Unavailable	15%	16°C	13°C	0mm	83%	0cm	-58°	19°C	0mm	0.38kPa	37820m	2.8m/s	1m/s
02:00 Night	Unavailable	15%	16°C	14°C	0mm	83%	0cm	-58°	19°C	0mm	0.38kPa	37900m	3.8m/s	1.7m/s
03:00 Night	Unavailable	16%	16°C	14°C	0.1mm	82%	0cm	-53°	19°C	0mm	0.4kPa	37960m	4.1m/s	1.8m/s
04:00 Night	Unavailable	15%	16°C	14°C	0mm	82%	0cm	-44°	19°C	0mm	0.4kPa	38040m	4m/s	1.5m/s
05:00 Night	Unavailable	14%	16°C	14°C	0mm	82%	0cm	-33°	19°C	0mm	0.39kPa	38140m	3.3m/s	1.3m/s
06:00 Night	Unavailable	13%	16°C	15°C	0mm	81%	0cm	-22°	19°C	0mm	0.41kPa	33160m	2.7m/s	0.9m/s
07:00 Night	Unavailable	12%	15°C	15°C	0mm	80%	0cm	-9.8°	19°C	0mm	0.43kPa	38140m	2.4m/s	0.54m/s
08:00	Unavailable	12%	15°C	15°C	0mm	80%	0cm	2.2°	19°C	0mm	0.43kPa	38100m	2.6m/s	0.67m/s
09:00	Unavailable	11%	16°C	13°C	0mm	80%	0cm	13°	19°C	0mm	0.45kPa	38040m	2.5m/s	0.89m/s
10:00	Unavailable	10%	16°C	13°C	0mm	77%	0cm	24°	20°C	0mm	0.54kPa	42060m	3.1m/s	1.1m/s
11:00	Unavailable	8%	16°C	12°C	0mm	73%	0cm	34°	21°C	0mm	0.66kPa	32960m	4.4m/s	1.5m/s
12:00	Unavailable	7%	16°C	12°C	0.5mm	73%	0cm	41°	21°C	0mm	0.68kPa	42120m	5.3m/s	2.2m/s
13:00	Unavailable	6%	17°C	12°C	0.1mm	74%	0cm	45°	22°C	0mm	0.67kPa	42180m	6.3m/s	2.9m/s
14:00	Unavailable	6%	16°C	12°C	0mm	68%	0cm	45°	22°C	0mm	0.84kPa	42340m	6.8m/s	3.4m/s
15:00	Unavailable	5%	15°C	11°C	0.1mm	63%	0cm	41°	22°C	0mm	0.98kPa	42480m	6.9m/s	3.4m/s
16:00	Unavailable	5%	14°C	11°C	0.3mm	62%	0cm	33°	22°C	0mm	1kPa	42560m	7.2m/s	3.7m/s
17:00	Unavailable	4%	14°C	11°C	0.2mm	63%	0cm	24°	22°C	0mm	0.96kPa	42660m	7.3m/s	3.5m/s
18:00	Unavailable	4%	15°C	10°C	0.3mm	65%	0cm	13°	21°C	0mm	0.89kPa	38640m	7.2m/s	3.5m/s
19:00	Unavailable	3%	15°C	10°C	0mm	69%	0cm	1.8°	21°C	0mm	0.77kPa	38620m	6.9m/s	3.1m/s
20:00 Night	Unavailable	2%	16°C	11°C	0mm	74%	0cm	-10°	21°C	0mm	0.63kPa	38300m	6.4m/s	2.6m/s
21:00 Night	Unavailable	1%	16°C	11°C	0mm	77%	0cm	-22°	20°C	0mm	0.55kPa	37120m	6.2m/s	2.4m/s
22:00 Night	Unavailable	1%	16°C	10°C	0.2mm	78%	0cm	-34°	20°C	0mm	0.52kPa	38680m	6.4m/s	2.6m/s

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Fog Hunter conditions across Azores. The requirements and hourly values above show how those signals apply at Ribeira Grande.

Explore Fog Hunter conditions across Azores →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Ribeira Grande during the last 365 days.

Last 30 days

recorded matching windows

Last 90 days

recorded matching window · 81% average confidence

Last 365 days

recorded matching window · 81% average confidence

Only 1 completed match is recorded in the last 365 days—insufficient history to identify a reliable typical start time or month.

These figures use completed PhotoWeather MatchEvent records from the previous 365 days only. They describe recorded forecast matches, not observations, climatological probability, or a guarantee of future conditions.

Create your own Fog Hunter alerts

Get notified when these conditions match at your own locations.

Get this template

How this forecast is made

Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.

The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.

How opportunities work → Weather data sources →

Get Notified of Opportunities

Create your own custom alerts for this location and more.

Create Free Account