Vallejo Water Temperature

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Vallejo is a city close to San Francisco Bay. September is the month with the highest water temperature at 58.3°F / 14.6°C.
The coldest month is April with an average water temperature of 52.3°F / 11.3°C.
January is the driest at 0in / 0mm and January the wettest month with 0in / 0mm.
With an average air temperature of 71.1°F / 21.7°C, July is the warmest month in a year. January is the coldest with 47.3°F / 8.5°C average air temperature.
The Climate is described as temperate climate with warm and dry summer. Best time to Visit would be in June, July, August, September.

Vallejo Summary

Description	Value
Current water temperature	/
Warmest Month Water Temperature:	September with 58.3°F / 14.6°C
Coldest Month Water Temperature:	April with 52.3°F / 11.3°C
Warmest Month Air Temperature:	July with 71.1°F / 21.7°C
Coldest Month Air Temperature:	January with 47.3°F / 8.5°C
Wettest Month:	January with 0in / 0mm
Driest Month:	January with 0in / 0mm
Highest Humidity	January with 74.2%
Lowest Humidity	June with 46.9%
Best Time to Visit:	June, July, August, September
Climate Classification	temperate climate with warm and dry summer

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Vallejo water temperature by month

°F

San Francisco Bay water temperature by month

	Max. Water Temperature (°F)	ø. Water Temperature (°F)	Min. Water Temperature (°F)
January	53.6	53.4	53.2
February	53.6	53.2	52.9
March	53.6	53.2	52.7
April	52.7	52.5	52
May	53.4	52.7	52.2
June	55.6	54	52.9
July	57.2	56.1	55
August	58.3	57.7	56.8
September	58.6	58.1	57.7
October	58.1	57	56.5
November	56.7	55.8	54.7
December	55	54.5	53.6

°C

San Francisco Bay water temperature by month

	Max. Water Temperature (°C)	ø. Water Temperature (°C)	Min. Water Temperature (°C)
January	12	11.9	11.8
February	12	11.8	11.6
March	12	11.8	11.5
April	11.5	11.4	11.1
May	11.9	11.5	11.2
June	13.1	12.2	11.6
July	14	13.4	12.8
August	14.6	14.3	13.8
September	14.8	14.5	14.3
October	14.5	13.9	13.6
November	13.7	13.2	12.6
December	12.8	12.5	12

The hottest water temperature typically reached in September with around 58.3°F / 14.6°C. The coldest in April with an average water temperature of 52.3°F / 11.3°C.

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Vallejo weather today & 14-day weather forecast

7-day weather forecast
+9-day forecast

7-day weather forecast

Date	Weather	Max. F Min. F	Max. C Min. C	Windspeed Windir.	Precip. Rainrisk	Rel. Humidity
Mar. 25	Few clouds	84 °F 55°F	29 °C 13°C	1mph (2km/h) south-southeast	0in (0mm) 0 %	62%
Mar. 26	Broken clouds	64 °F 54°F	18 °C 12°C	3mph (5km/h) southwest	0in (0mm) 10 %	83%
Mar. 27	Broken clouds	61 °F 53°F	16 °C 12°C	3mph (5km/h) southwest	0in (0mm) 0 %	80%
Mar. 28	Broken clouds	62 °F 49°F	16 °C 10°C	3mph (4km/h) west-southwest	0in (0mm) 0 %	77%
Mar. 29	Scattered clouds	62 °F 45°F	17 °C 7°C	2mph (3km/h) west	0in (0mm) 0 %	69%
Mar. 30	Light shower rain	59 °F 47°F	15 °C 9°C	2mph (3km/h) south	0in (4mm) 65 %	78%
Mar. 31	Overcast clouds	60 °F 51°F	16 °C 10°C	1mph (2km/h) south-southwest	0in (0mm) 10 %	72%

+9-day forecast

Date	Weather	Max. F Min. F	Max. C Min. C	Windspeed Windir.	Precip. Rainrisk	Rel. Humidity
Apr. 01	Broken clouds	63 °F 51°F	17 °C 11°C	1mph (2km/h) west-southwest	0in (0mm) 0 %	72%
Apr. 02	Overcast clouds	60 °F 55°F	16 °C 13°C	1mph (1km/h) southwest	0in (1mm) 25 %	80%
Apr. 03	Overcast clouds	67 °F 55°F	20 °C 13°C	2mph (3km/h) south-southwest	0in (0mm) 10 %	81%
Apr. 04	Overcast clouds	69 °F 56°F	20 °C 14°C	1mph (2km/h) west-southwest	0in (1mm) 30 %	88%
Apr. 05	Light shower rain	67 °F 55°F	20 °C 13°C	2mph (4km/h) south	0in (3mm) 60 %	83%
Apr. 06	Few clouds	67 °F 48°F	19 °C 9°C	2mph (3km/h) west-northwest	0in (1mm) 40 %	71%
Apr. 07	Clear Sky	78 °F 48°F	26 °C 9°C	0mph (1km/h) north-northwest	0in (0mm) 0 %	53%
Apr. 08	Clear Sky	76 °F 52°F	24 °C 11°C	1mph (2km/h) west-southwest	0in (0mm) 0 %	54%
Apr. 09	Broken clouds	74 °F 53°F	23 °C 11°C	1mph (2km/h) southwest	0in (0mm) 0 %	49%

Vallejo weather by month / climate table

°F

	Max. Temperature °F	ø. Temperature °F	Min. Temperature (°F)	Rel. Humidity (%)
January	58.8	47.3	37.6	74.2%
February	60.8	48.9	39.9	72.4%
March	68	52.2	40.3	69.5%
April	73.4	55.6	43.5	62.2%
May	80.4	62.1	49.3	54.2%
June	90.3	69.1	53.1	46.9%
July	90.1	71.1	56.3	50.4%
August	90.5	70.3	56.5	52.5%
September	88.7	69.1	54.5	48.8%
October	80.8	62.8	49.3	52.5%
November	69.8	53.8	41.5	64.9%
December	58.6	47.3	38.1	73.5%

°C

	Max. Temperature °C	ø. Temperature °C	Min. Temperature (°C)	Rel. Humidity (%)
January	14.9	8.5	3.1	74.2%
February	16	9.4	4.4	72.4%
March	20	11.2	4.6	69.5%
April	23	13.1	6.4	62.2%
May	26.9	16.7	9.6	54.2%
June	32.4	20.6	11.7	46.9%
July	32.3	21.7	13.5	50.4%
August	32.5	21.3	13.6	52.5%
September	31.5	20.6	12.5	48.8%
October	27.1	17.1	9.6	52.5%
November	21	12.1	5.3	64.9%
December	14.8	8.5	3.4	73.5%

The hottest avg. temperature is around 71.1°F / 21.7°C, July is the month with the highest temperature. January is the coolest with 47.3°F / 8.5°C average temperature. January is the month with the lowest precipitation of 0in / 0mm and January with the maximum precipitation in a year with 0in / 0mm.

Activities & POI in Vallejo

Type of Activity	List
Marina for Sailing, Boat adventures, fishing	Vallejo Municipal Marina
Attraction	Medusa, Farmers Produce Market, Hunter Memorial Promenade, No.519 and 229 Cannons, The Alibi Clock, Historic US 40 Route, Historic Route US 40, Old Boat Cranes, Information Board, Abandoned Fishing Huts, 'Start-Stop Work' Signal Bell, Pillar of the Future, Various Torpedoes, Car Pool Pickup to San Francisco, Mare Island Preserve Bunker 2, Mare Island Preserve Bunker 1, Drench! Dolphin Show, Dolphin Underwater Viewing, Our Ocean Friends, Odie's Sea Lion Stadium, Dolphin Underwater Viewing Window, Dolphin Encounter, Dolphin Discovery Classroom, Superman Sign, Wonder Woman Sign
Golf Course	Joe Mortara Golf Course, Blue Rock Spring Golf Club, Mare Island Golf Course

San Francisco Bay