IOBW 海面水温の基準値
year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1949 27.51 27.78 28.34 28.76 28.57 27.77 26.98 26.62 26.71 27.18 27.47 27.59 1950 27.52 27.79 28.33 28.76 28.58 27.76 26.99 26.63 26.73 27.17 27.44 27.56 1951 27.52 27.77 28.32 28.73 28.56 27.72 26.94 26.60 26.71 27.15 27.40 27.47 1952 27.44 27.68 28.26 28.66 28.55 27.69 26.91 26.57 26.71 27.16 27.41 27.49 1953 27.43 27.68 28.26 28.66 28.53 27.67 26.88 26.53 26.68 27.12 27.37 27.45 1954 27.40 27.65 28.27 28.66 28.53 27.66 26.85 26.51 26.65 27.11 27.37 27.47 1955 27.40 27.65 28.27 28.66 28.52 27.63 26.80 26.46 26.60 27.04 27.29 27.41 1956 27.36 27.57 28.20 28.61 28.44 27.53 26.75 26.42 26.58 27.02 27.28 27.39 1957 27.34 27.53 28.21 28.60 28.39 27.48 26.70 26.39 26.54 26.97 27.24 27.37 1958 27.32 27.51 28.19 28.60 28.40 27.48 26.69 26.38 26.53 26.98 27.27 27.38 1959 27.38 27.55 28.20 28.63 28.43 27.50 26.70 26.38 26.53 26.96 27.27 27.38 1960 27.42 27.58 28.21 28.64 28.44 27.50 26.68 26.36 26.53 26.95 27.27 27.39 1961 27.40 27.57 28.20 28.63 28.42 27.47 26.65 26.32 26.51 26.93 27.23 27.38 1962 27.41 27.58 28.20 28.64 28.42 27.48 26.67 26.33 26.51 26.93 27.23 27.36 1963 27.36 27.54 28.18 28.63 28.40 27.47 26.67 26.35 26.52 26.93 27.22 27.36 1964 27.36 27.53 28.16 28.62 28.40 27.47 26.69 26.36 26.52 26.94 27.25 27.37 1965 27.37 27.54 28.16 28.61 28.36 27.46 26.66 26.33 26.49 26.90 27.19 27.34 1966 27.33 27.51 28.08 28.58 28.32 27.43 26.65 26.31 26.49 26.92 27.20 27.33 1967 27.34 27.55 28.09 28.58 28.32 27.45 26.68 26.34 26.53 26.95 27.23 27.35 1968 27.33 27.55 28.09 28.59 28.34 27.48 26.70 26.36 26.56 26.98 27.26 27.36 1969 27.31 27.54 28.07 28.56 28.31 27.47 26.67 26.34 26.53 26.98 27.24 27.34 1970 27.32 27.56 28.11 28.60 28.35 27.48 26.68 26.36 26.57 27.02 27.30 27.39 1971 27.37 27.61 28.16 28.65 28.39 27.50 26.72 26.39 26.60 27.04 27.30 27.37 1972 27.35 27.58 28.15 28.67 28.40 27.51 26.74 26.42 26.62 27.06 27.33 27.39 1973 27.38 27.61 28.16 28.68 28.44 27.58 26.79 26.46 26.68 27.13 27.41 27.47 1974 27.45 27.65 28.19 28.72 28.46 27.60 26.81 26.47 26.69 27.14 27.42 27.44 1975 27.41 27.60 28.16 28.68 28.44 27.61 26.84 26.49 26.69 27.12 27.40 27.46 1976 27.42 27.61 28.14 28.65 28.43 27.65 26.88 26.51 26.68 27.09 27.37 27.41 1977 27.36 27.58 28.11 28.64 28.44 27.68 26.92 26.52 26.69 27.11 27.37 27.41 1978 27.40 27.57 28.12 28.66 28.46 27.72 26.95 26.55 26.71 27.12 27.40 27.45 1979 27.43 27.61 28.14 28.68 28.45 27.71 26.94 26.55 26.70 27.14 27.42 27.47 1980 27.47 27.66 28.18 28.71 28.47 27.74 26.97 26.56 26.71 27.17 27.46 27.50 1981 27.50 27.67 28.19 28.73 28.52 27.76 26.98 26.58 26.73 27.19 27.48 27.49 1982 27.47 27.65 28.20 28.71 28.55 27.77 26.99 26.60 26.76 27.25 27.51 27.50 1983 27.46 27.67 28.22 28.73 28.59 27.79 27.01 26.63 26.80 27.30 27.56 27.55 1984 27.51 27.74 28.28 28.78 28.65 27.88 27.09 26.70 26.84 27.33 27.58 27.57 1985 27.49 27.71 28.28 28.78 28.61 27.84 27.05 26.65 26.80 27.29 27.56 27.54 1986 27.49 27.68 28.26 28.77 28.59 27.77 27.01 26.62 26.79 27.26 27.54 27.53 1987 27.47 27.67 28.24 28.76 28.56 27.74 26.97 26.58 26.75 27.23 27.55 27.55 1988 27.49 27.68 28.29 28.80 28.65 27.81 27.04 26.66 26.83 27.30 27.63 27.62 1989 27.57 27.78 28.39 28.88 28.69 27.84 27.08 26.72 26.89 27.34 27.65 27.64 1990 27.58 27.79 28.39 28.86 28.68 27.80 27.05 26.69 26.89 27.33 27.67 27.68 1991 27.61 27.85 28.43 28.86 28.69 27.78 27.05 26.68 26.87 27.33 27.66 27.71 1992 27.65 27.88 28.46 28.90 28.74 27.81 27.08 26.70 26.89 27.34 27.66 27.70 1993 27.64 27.88 28.46 28.90 28.76 27.83 27.11 26.70 26.88 27.32 27.65 27.68 1994 27.63 27.86 28.44 28.88 28.78 27.83 27.11 26.70 26.88 27.32 27.68 27.70 1995 27.67 27.88 28.46 28.89 28.78 27.81 27.08 26.68 26.85 27.31 27.65 27.68 1996 27.65 27.88 28.44 28.90 28.77 27.83 27.10 26.69 26.87 27.33 27.65 27.67 1997 27.67 27.93 28.47 28.91 28.77 27.85 27.11 26.69 26.88 27.31 27.64 27.68 1998 27.67 27.89 28.48 28.93 28.79 27.90 27.15 26.73 26.94 27.39 27.73 27.77 1999 27.77 28.00 28.57 29.01 28.87 27.97 27.18 26.76 26.96 27.40 27.72 27.77 2000 27.77 28.02 28.60 29.02 28.86 27.95 27.19 26.78 26.98 27.41 27.75 27.81 2001 27.82 28.04 28.60 29.02 28.86 27.94 27.20 26.82 27.02 27.44 27.77 27.82 2002 27.81 28.03 28.60 29.05 28.89 27.95 27.22 26.85 27.06 27.46 27.79 27.88 2003 27.88 28.05 28.63 29.09 28.92 28.01 27.27 26.90 27.14 27.54 27.86 27.97 2004 27.95 28.13 28.70 29.17 28.96 28.08 27.32 26.94 27.17 27.58 27.88 27.97 2005 27.97 28.13 28.69 29.18 28.93 28.06 27.29 26.93 27.16 27.57 27.86 27.99 2006 27.98 28.16 28.73 29.19 28.96 28.08 27.30 26.95 27.16 27.54 27.82 27.94 2007 27.92 28.13 28.69 29.16 28.96 28.10 27.31 26.97 27.17 27.57 27.86 27.97 2008 27.95 28.15 28.70 29.18 28.99 28.16 27.35 27.02 27.21 27.59 27.88 27.98 2009 27.97 28.12 28.64 29.14 28.93 28.12 27.32 27.02 27.24 27.63 27.89 27.98 2010 28.01 28.17 28.69 29.15 28.96 28.18 27.35 27.06 27.26 27.68 27.94 28.05 2011 28.07 28.25 28.78 29.26 29.04 28.22 27.38 27.09 27.27 27.69 27.95 28.03 2012 28.03 28.23 28.77 29.22 29.03 28.22 27.39 27.12 27.29 27.74 28.00 28.07 2013 28.04 28.23 28.74 29.22 29.03 28.24 27.42 27.17 27.32 27.81 28.06 28.13 2014 28.07 28.28 28.79 29.25 29.04 28.24 27.42 27.19 27.35 27.83 28.09 28.13 2015 28.05 28.25 28.78 29.27 29.05 28.30 27.47 27.19 27.39 27.91 28.17 28.18 2016 28.09 28.24 28.83 29.32 29.14 28.34 27.51 27.28 27.47 27.97 28.22 28.26 2017 28.18 28.31 28.94 29.43 29.21 28.37 27.50 27.27 27.44 27.94 28.21 28.28 2018 28.16 28.31 28.94 29.44 29.26 28.42 27.58 27.35 27.52 27.99 28.27 28.28 2019 28.13 28.34 28.98 29.46 29.29 28.41 27.60 27.37 27.57 28.02 28.29 28.31 2020 28.14 28.35 29.00 29.50 29.32 28.46 27.65 27.40 27.59 28.06 28.34 28.38 2021 28.22 28.43 29.08 29.56 29.36 28.49 27.71 27.44 27.62 28.11 28.38 28.40 2022 28.21 28.43 29.08 29.56 29.37 28.47 27.70 27.44 27.62 28.09 28.36 28.41 2023 28.27 28.41 29.05 29.58 29.34 28.44 27.64 27.39 27.57 28.02 28.31 28.35 2024 28.21 28.36 29.03 29.59 29.36 28.46 27.65 27.43 27.59 28.05 28.36 28.42